predict the complete ground state electron configuration of bohrium. do not use noble gas abbreviation, show sub orbitals partially filled

Answers

Answer 1

Ground state electron configuration of bohrium is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹⁴ 6d⁵ 7s². Atomic number of Bohrium is 107.

What is element?

Elements are composed of identical atom, they cannot be distinguished from one another and are inseparable. In the entire periodic table , 118 elements have been know till the present.

What is electron configuration?

Every electron in an atom has its position in the orbital system described by a set of four quantum numbers. The electron configuration uses this set of quantum numbers, to describe the distribution of an electrons present in a certain atom. For a neutral (uncharged) atom in the ground (non-excited) state, its configuration can be readily predicted from the row (period) and column (group) position of its element in the periodic table.

Bohrium is a element of group 7, period 7 and part of 'd' block.

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Related Questions

aluminum hydroxide is an ingredient in some antacids. it reacts with hydrochloric acid (the acid in your stomach) according to the following equation: (enter your answer to three significant figures.) a question content area how many grams of react with 2.65 g of ?

Answers

The number of moles of aluminum that neutralizes the antacid is 7.95 moles.

An antacid is a substance that neutralizes the acidity in our stomach. Antacid contains substances like aluminum, magnesium and etc. It makes the pH alkaline when the pH drops below the required amount.

    According to the given condition, aluminum hydroxide reacts with hydrochloric acid.

Al(OH)3 + 3Hcl - Alcl3 + 3 H2O.

      Here, 1 mole of aluminum hydroxide reacts with 3 moles of hydrochloric acid.

Therefore, 2.65g will react with 3/1 moles.

Therefore, 3/1 x 2.65 = 7.95 moles.

Complete question: -

Some antacid tablets contain aluminum hydroxide. The aluminum hydroxide reacts with stomach acid according to the equation: AI(OH)3 +3HCIAICI, +3H2O. Determine the moles of acid neutralized if a tablet contains 0.200 mol of Al(OH)3

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given that the principal quantum number is n, the number of orbitals in each principal energy level is given by the expression .

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The formula 2n², where n is the primary energy level, can be used to calculate the maximum amount of electrons in each energy level (first quantum number).

Where are the orbitals?

The nucleus is the center of the orbits. One orbital will be larger than the others if an atom has several orbitals, or they will overlap. Additionally, an atom is perhaps most likely to occur in the electron shells. Orbitals, or groups of electrons arranged in a cloudlike pattern, surround the nucleus.

What shape do orbitals take?

The highest level of probability for an electron to exist is in an atom's nucleus. The route that electrons travel while navigating the restrictions of the circle is referred to as a subshell. There are four different subshell classifications. The letters s, p, d, & f are used to identify the ​such​.

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If the following elements were involved in a chemical reaction, which one would be most likely to form a cation?
O nitrogen (N)
potassium (K)
Ofluorine (F)
Ochlorine (CI)

Answers

Among elements that are involved in a chemical reaction, one that would be most likely to form a cation is : potassium (K)

Why potassium is cation?

In the periodic table, potassium is one of the alkali metals which has a single valence electron in the outer electron shell. This valence electron is easily removed to create an ion with a positive charge that is a cation.

Halogens always form anions whereas alkali metals and alkaline earth metals form cations.

Cl- is an example of anion as Cl- atom is a chlorine atom that has gained one electron and has a negative charge of -1 since it has a full outer shell. A negatively charged ion fluorine is an anion.

Nitrogen is neither a cation nor an anion as it falls in the category of atom and atoms are electrically neutral.

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why is a double or triple bond needed? select all that apply. serves as a source of electron density serves as a nucleophile serves as an electrophile serves as a source of electron deficiency

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The double or triple bond are needed because as they serves as a source of electron density and serves as a nucleophile.

The double bond or triple bond are electron rich entities capable of donating electrons thus act as nucleophile (species that donate electrons) and serve as electron dense region in molecules.

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For many purposes we can treat propane C3H8 as an ideal gas at temperatures above its boiling point of −42.°C Suppose the temperature of a sample of propane gas is raised from -28.0°C to 9.0°C, and at the same time the pressure is increased by 5.0%

Answers

The percent change in volume is 21 %.

given that :

Temperature T1 = 245 K

temperature T2= 282 K

Pressure P1 = P

pressure P2 = P - 0.05 = 0.95 P

V1 = V

V2 = ?

using the ideal gas equation , we get :

P1 V1 / T1 = P2 T2 / V2

V2 = ( P1 V1 T2 ) ( P2 T1 )

V2 = ( P × V × 282 ) /( 0.95P × 245)

V2 = 1.21 V

change in volume =  V2 - V1 = 1.21 V - V

                                               = 0.21

% change in volume = 0.21 × 100 %

                                 = 21 %

Thus, The percent change in volume is 21 %.

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chemical analysis of an unknown compound shows that it contains 64.9% c, 13.5% h, and 21.6% o by mass. at 120oc and 750 mmhg, 2.00 l of the gaseous compound weighs 9.1 g. a. what is the empirical formula of the compound?

Answers

The empirical formula of the compound C₄H₁₀O₁.

The empirical method of a chemical compound is the simplest entire range ratio of atoms present in a compound. The empirical formula of a compound is the most effective whole variety ratio of atoms of each detail in the compound.

Step 1: decide the masses. Step 2: decide the variety of moles by dividing the grams by means of the atomic mass. Step 3: Divide the wide variety of moles of every detail through the smallest quantity of moles. Step 4: Convert numbers to complete numbers.

                                         divide by smallest

64.9% C /12 = 5.4             5.4/ 13.5  = 4

13.5% / 1 H  = 13.5             13.5 /1.35  = 10

21.6% / 16 O  = 1.35          1.5/1.5 = 1

Empherical formula = C₄H₁₀O₁

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when 14 gm of CO gas reacted with an excess amount of oxygen the volume of produced CO2 at STP is. ?​

Answers

Answer:

22.4 liters

Explanation:

1 Mole of gas occupies 22.4 Litres of volume at STP.

Given, the mass of CO=14 g

Molar mass of CO=12+16=28 g

No. of moles of CO=

28

14

=0.5 Moles

So, CO occupies 0.5×22.4=11.2 L at STP.

the intial temperature of both the acid and the base were 22.6 oc, but they rose to 28.2 oc during the reaction. if the calorimeter constant was 78.5 j/oc, what was qrxn in j? give your answer to 3 sigfigs, and watch your signs

Answers

The intial temperature of both the acid and the base were 22.6 oc, but they rose to 28.2 oc during the reaction. if the calorimeter constant was 78.5 j/oc   Initial temperature = final temperature - change in temperature

Initial temperature is the average temperature of the contents of the coldest processing container at the start of the thermal processing cycle, as determined by thoroughly stirring or shaking the filled and sealed container. 32°F (0°C). Tell your audience that the freezing point is the  intial temperature at which fresh water begins to freeze. When a liquid turns into a solid, that temperature is known as the freezing point. Water turns from a liquid to a solid at a temperature of 32°F (0°C), which is known as the freezing point.

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calculate the ph of a buffer solution obtained by dissolving 29.029.0 g of kh2po4(s)kh2po4(s) and 44.044.0 g of na2hpo4(s)na2hpo4(s) in water and then diluting to 1.00 l.

Answers

The pH of buffer solution obtained will be 7.05 by dissolving 29.029.0 g of kh2po4(s)kh2po4(s) and 44.044.0 g of na2hpo4(s)na2hpo4(s) in water and then diluting to 1.00 l.

This can be calculated using use Henderson - Hasselbalch equation:

PH = Pka + ㏒ [A/AH]

Molar mass of KH₂PO₄ =  136.0 g And Molar mass of Na₂HPO₄ =  142.0 g

No. of moles of H₂PO₄⁻ = No. of moles of KH₂PO₄ = (29..0 g) / (136.0 g/mol) = 0.213 mol

No. of moles of HPO₄²⁻ = No. of moles of Na₂HPO₄ = (44.0 g) / (142.0 g/mol) = 0.30 mol

In the solution, [HPO₄²⁻]/[H₂PO₄⁻] = 0.213/0.30

Henderson-Hasselbalch equation:

pH = pKₐ + log([HPO₄²⁻]/[H₂PO₄⁻])

pH = 7.21 + log(0.213/0.30)

pH = 7.05

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a piece of wood is measured and 1/4 of its 14c has decayed into 14n. approximately how old is it? (note: the half-life of 14c is 5,730 years.) a. 5,730 years b. 2,865 years c. 11, 460 years d. 50,000 years

Answers

A piece of wood is measured and 1/4 of its 14c has decayed into 14n.  The half-life of 14c is 5,730 years. Approximately 5,730 years old is it.

What is Half-Life ?

The half-life is the time required for a quantity to fall to half of its starting value. The expression is commonly used in nuclear physics to describe how quickly unstable atoms decay radioactively or how long stable atoms remain. The term can also be used more generally to refer to any type of exponential decay.

A measurement of a piece of wood reveals that one-fourth of its 14c has converted to 14n.

With a half-life of 5700 30 years, radiocarbon (14C) is particularly useful for dating in archaeology. The Gamow-Teller ß-decay, an uncommon impediment to the beta decay of 14C to 14N, causes this half-life to be short.

Radiocarbon dating, also referred to as carbon-14 dating, is a method of radiometric dating. It uses the naturally occurring radioisotope carbon-14 (14C) to estimate the age of items containing carbon up to a maximum of 58,000–62,000 years. Carbon has two stable, nonradioactive isotopes: carbon-12 and carbon-13. On Earth, trace amounts of the unstable radioactive carbon-14 (14C) are also present. Carbon-14 has an extremely short half-life of 5,730 years due to radioactive decay to nitrogen-14, which means that within this time, the percentage of carbon-14 in a sample will have dropped by 50%. Carbon-14 would vanish from Earth's atmosphere in less than a million years if it weren't for cosmic rays that are continually pelting the stratosphere and interacting with nitrogen molecules (N2) and single nitrogen atoms.

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Write about a time when you experienced or witnessed a microaggression. Connect how you felt to how an element may feel when their electrons are taken away. How do microaggressions relate to ionization energy? How could we use this to explain ionization energy to someone who is not familiar with chemistry?

Answers

A  time when you experienced microaggression was when i wnet to college in another state. The lecturer in one of my course was very angry that i left my tribe, my state to another state to study. There was element of mockery in his voice.

I felt sad, angry and also bad at the same time. I just wanted to run away from the class because all eyes were on me.

Microaggressions relate to ionization energy through the power they command or hold. I can explain Microaggressions  as ionization energy to someone  as having the power to aggressively give out a part of you that can be good or bad.

What is an example to clarify what ionization energy is?

Ionization energies gauge an atom's propensity to resist losing electrons. For instance, removing an electron from a neutral fluorine atom to create a positively charged ion requires a significant amount of energy.

Note that Microaggressions are everyday verbal, behavioral, or environmental slights that signal hostility, denigration, or negative views toward stigmatized or culturally marginalized groups. They can be deliberate or inadvertent. Chester M., a psychiatrist at Harvard University, originated the phrase.

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I need help with number 5

Answers

Answer:

25

E

12

Explanation:

As shown in the pic

Mass number = 12 + 13 = 25

Atomic number = No of protons = 12

Which selection best describes what granger believes to be the major difference between man and the phoenix?.

Answers

The statement best describes what Granger believes to be the major difference between man and the phoenix: that the phoenix recognizes when they have made a mistake and eventually will learn not to repeat it. Meanwhile, although a man recognizes his fault, he will continue to repeat them.

What does Granger say about the men and phoenix comparison?

Phoenix is a mythological creature that would burn itself to death only to be reborn from the ashes. As well as humans, we tend to cyclically destroy ourselves and our societies only to build them up again. Granger hopes that eventually, men will learn the lessons from history and stop destroying society.

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which method can be used to visualize lipids that have been separated by thin-layer chromatography by reversibly reacting with double bonds in fatty acids?

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The method can be used to visualize lipids that have been separated by thin-layer chromatography by reversibly reacting with double bonds in fatty acids in iodine fumes.

Chromatography on silica-impregnated paper is a very useful and versatile analytical method. Thin-layer chromatography is considered one of the most effective and versatile techniques for separating intact complex lipids and their lipid moieties as well as neutral lipids.

Solvents play an important role in both pathways as lipids are extracted using solvent-based techniques. In some cases the solvent is incorporated directly into the cell pellet, in others, the solvent is used during cell disruption. The separation and identification of unsaturated fatty acids are commonly performed by bromination or hydroxylation processes that convert unsaturated acids to the corresponding Bromo- or hydroxy-derivatives of saturated fatty acids.

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given the electronegativity values of c (2.5), n (3.0), o (3.5), and s (2.5), which of the following molecules have polar bonds? question 34 options: a) smog, no2 b) carbon dioxide, co2 c) sulfur dioxide, so2 d) all of the above e) none of the above

Answers

Given the electronegativity values of c (2.5), n (3.0), o (3.5), and s (2.5), The following molecules have polar bonds answer is all of the above.

There is bond between carbon and oxygen. So , bund is polar . since they have different electro negativities

The electronegativityes O' and s'are different. so, bond is polar and There is difference is electronegativityes between N and O, Sois polar bond.

When an atom of a certain chemical element forms a chemical bond, it has a propensity to draw shared electrons, which is denoted by the symbol, which stands for electronegativity. The atomic number of an atom and the separation of its valence electrons from the charged nucleus both have an impact on how electronegtive that atom is. The atom is more in need of an electron when the electronegativity is higher. o Electronegativity grows across a period from left to right. o The attraction of an atom on the electrons in a bonding pair is strongest when the valence shell is nearly full.

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a copper ore consisting of 12.5% copper(ii) sulfide (95.61 g/mol), when heated and reacted with oxygen gas (32.00 g/mol), produces copper(ii) oxide (79.55 g/mol) and sulfur dioxide (64.06 g/mol). if the reaction has a 90.0% yield, how many grams of copper(ii) oxide are produced when 1.00 kg of the copper ore is processed?

Answers

93.7 grams of copper(ii) oxide are produced when 1.00 kg of the copper ore is processed .

What is combustion ?

Combustion, a chemical reaction between substances, usually containing oxygen, that involves the production of heat and light, usually in the form of a flame. The speed or rate at which reactants combine is partly due to the nature of the chemical reaction itself, and partly due to the more energy produced than can escape to the surrounding medium, the temperature of the reactants is used to rise. further accelerate the reaction.

A well-known example of a combustion reaction is a lit match. When you light a match, the friction heats the head to a temperature at which the chemicals react, producing more heat than escaping into the air and burning in a flame.

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when a substance exhibits resonance, we say that none of the individual lewis structures accurately portrays the bonding in the substance. why do we draw resonance structures?

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The class of Lewis structures known as resonance structures depicts the movement of bonds and lone pairs through various configurations. Resonating structures are produced by the complete transfer of electrons during delocalization from one atom to the following atom. We can infer from this that the distribution of charges is distributed evenly across the molecule, rather than being concentrated at a single location. The electrons are not concentrated around the sigma bond, as shown by resonance structures. The entire molecule now has a high electron charge density. The preferred representation of the molecule is displayed by the resonance structures. The collection of structures suggests that the pi bond's electrons are distributed evenly throughout the molecule and are not concentrated at any one point. Following the octet rule, resonating structures indicate that the atom

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if 27.5 grams of bromine and 12.2 grams of chlorine combine to form bromine monochloride, how many grams of bromine monochloride must form?

Answers

According to the given statement 39.45 g many grams of bromine monochloride must form.

How does chlorine help digest food?

Last but not least, chloride aids in the creation and release if hydrochloric acid (HCl), which is necessary for the appropriate breakdown and absorption of food in the stomach. Chlorine kills pollutants more quickly but does so for a shorter amount of time since it evaporates more quickly. For a longer time, although more slowly, bromine destroys pollutants;

Briefing:

When 27.5 grams of bromine and 12.2 grams of chlorine react, bromine monochloride is produced.

Br2 + Cl2 ---> 2BrCl

mol Br2= 27.5/160g/mol= 0.171mol

mol Cl2= 12.2g/70.906g/mol= 0.172mol

Number of moles of BrCl formed = 2×0.171= 0.342 mol.

mass BrCl= 0.342 mol x 115.357g/mol= 39.45 g

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a 200. g sample of a metal is heated to 54 degrees celsius and then dropped into 119. g of water in a calorimeter. the temperature of the water rises from 21.0 degrees celcius to 41.0 degrees celcius. what is the specific heat of the metal (j/g.k)?

Answers

The specific heat of given metal is 3.83 j/g.k

What is specific heat?

Specific heat, the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius. Units of specific heat are usually calories or joules/grams . Celsius.

Considering:

Heat gain by water = Heat lost by metal

Qₐ = Qₓ

mₐ cₐ (T₂ - T₁) = mₓ cₓ (Tₙ - T₂)

Where, mₐ = 119 g (mass of water)

cₐ = 4.186 j (specific heat of water)

T₂ = 41.0°C (final temperature of water)

T₁ = 21.0°C (initial temperature of water)

mₓ =  200 g (mass of metal)

cₓ = specific heat of metal

Tₙ = 54°C (Initial temperature of metal)

Now, substitute the values in the equation mentioned above,

119 × 4.186 × (41.0 - 21.0) = 200 × cₓ × ( 54 - 41.0)

9962.68 = 2600 cₓ

cₓ = 3.83 j/g.k

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what level of measurement is being employed in a map of countries depicting the number of gold metals they won at the most recent olympics?

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Quantitative measurement is being employed in a map of countries depicting the number of gold metals they won at the most recent olympics.

In this measurement the numbers are counted that thus can be used as reference tool. Numbers are used to express quantitative data, which are measures of values or counts. Numerical variables are the subject of quantitative data (e.g. how many; how much; or how often). Qualitative data can be represented by a name, symbol, or number code and are measures of "types."

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Select TWO questions that the residents of the farming community could ask to evaluate the proposed solutions.

Question 4 options:

Does this plan take into consideration damage to the crops caused by extreme weather events?


Does this plan allow the farms in our community to continue to be profitable?


Will this plan allow our community members to independently select oil suppliers?


Does this plan allow for a significant reduction in the use of diesel fuel?


Will this plan increase our farming community's access to new varieties of seeds?

Answers

Among the following, the most probable questions that could ask to the farming community are options 1 and 4. These questions addresses the issue and advantages of a crop field.

What is farming?

Farming is way of growing plant or animal varieties cultivating for food and sail. Better planning and designing of farm field gives benefits for farmers.

Farmers should aware of each varieties of their crop and its growth conditions and disadvantages also. Hence the probable questions that could ask to a farming community are does this plan take into consideration damage to the crops caused by extreme weather events

And the fourth option also will this plan increase our farming communities access to new varieties of seeds?

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what mass of potassium nitrate can be produced from the reaction of 30.00ml of 0.10m nitric acid with 15.00ml of 0.25m potassium carbonate?

Answers

0.28986 M mass of potassium nitrate can be produced from the reaction of 30.00ml of 0.10m nitric acid with 15.00ml of 0.25m potassium carbonate

V₁S₁ = V₂S₂ ( V₁  is the volume of acid ,S₁ is the strength of acid, V₂ is the volume of base , S₂ is the strength of base)

So, S1= V2S2 /V1

Putting the values ;

S1= V2S2 /V1

=> S1 = (32.58×0.08897)/10.00

=> S1 = 0.28986

concentration of solution of phosphoric acid = 0.28986 M

One or more chemicals, sometimes referred to as reactants, are changed into one or more new substances, referred to as products, during a chemical reaction. Chemical elements and compounds are both substances. reacting in action, procedure, or example. opposition to a movement, power, or effect The transformation of one or more chemicals into one or more other compounds is known as a chemical reaction. Examples include how rust is created when iron and oxygen combine. Making sodium acetate, carbon dioxide, and water from vinegar and baking soda. Exploding or burning items

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Neon has eight valence electrons in its outer shell. This means it does not easily react with other elements, as it has a full octet. Which other element behaves similarly?

Answers

Answer:

Any of the noble gasses, eg xenon.

Explanation:

All noble gasses have full outer shells of electrons which means they are very unreactive.

the bromophenol blue endpoint is surpassed in the back titration of the excess hcl with the sodium hydroxide titrant. as a result of this technique error, will the reported amount of antacid in the sample be too high or too low? explain.

Answers

The reported amount of antacid in the sample will be too high.

What are antacids?

Antacids are simply assembled salts and salk like compound which help in neutralizing of acids.This Neutralization reaction by antacids leads to various products such as other salts, water and possibly carbondioxid which results in hydrolysis and insoluble compound precipitation. There is a noticeable decline in the neutralizing ability by antacids and neutralization rate of aluminum-containing antacids when they are neutralized ny antacids in the presence of organic acids, peptones, and polypeptides.

In above case, the reported amount of antacid will be high because it will report as more NaOH needed to neutralize a greater amount of HCl.

Hence, The reported amount of antacid will be too high.

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The sample's antacid content will be overstated in the reported amount.

What are antacids?
Simple salts and salk-like compounds that are assembled to form antacids aid in neutralising acids. Antacids' neutralisation reaction produces a number of byproducts, including other salts, water, and possibly carbon dioxide, which causes hydrolysis and the precipitation of insoluble compounds. When aluminum-containing antacids are neutralised by antacids inside the presence of organic acids, peptones, and polypeptides, there is a discernible decline in their ability to neutralise and rate of neutralisation.

In the aforementioned situation, the reported amount of antacid would be high because more NaOH will be required to neutralise a larger amount of HCl.

Hence, The reported amount of antacid will be too high.
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a 125 g sample of lead at 85.0 c and a 320 g sample of silver at 34.0 c are added to 0.500 kg of water at room temperature (22.0 c) in an insulated container. assuming the system is thermally insulated, what is the final equilibrium temperature?

Answers

The final equilibrium temperature of the mixture of lead, silver, and water is 24.65°C. The result is obtained by using the Black's Principle.

What is Black's Principle?

The Black's Principle states that heat released by a higher-temperature object is equal to the heat absorbed by a lower-temperature object. It can be expressed as

Q release = Q absorbs

Where

Q release is the heat released by high-temperature objects.Q absorb is the heat absorbed by low-temperature objects.

The mass of lead is 125 g at 85°C, the mass of silver is 320 g at 34°C, and the mass of water is 0.5 kg at 22°C. All of them are mixed, so that the temperature of the lead and silver will fall and otherwise the temperature of water will rise.

The equation of the heat energy with the temperature change is

Q = m × c × ΔT

Where

m = massc = specific heat capacityΔT = change in temperature

The data shows that:

c lead = 128 J/kg °Cc silver =  234 J/kg °Cc water = 4,186 J/kg °C

The equilibrium temperature is

Q release = Q absorbs

(m × c × ΔT)lead + (m × c × ΔT)silver = (m × c × ΔT)water

(0.125 × 128 × (85-T)) + (0.320 × 234 × (34-T)) = (0.500 × 4,186 × (T-22))

(16 × (85-T)) + (74.88 × (34-T)) = (2,100 × (T-22))

1,360 - 16T + 2,545.92 - 74.88T = 46,200 - 2,100T

2,190.88T = 50,105.92

T = 24.65°C

Hence, the final equilibrium temperature of the mixture is 24.65°C.

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in the laboratory you dilute 4.90 ml of a concentrated 12.0 m hydrochloric acid solution to a total volume of 175 ml. what is the concentration of the dilute solution?

Answers

The diluted hydrochloric acid solution had a concentration of 0.3M

what is dilution?

Dilution is the application of a solvent that reduces the concentration of the solute with in solution. Concentration is the elimination of solvent, which raises the concentration of the solute in the solution.

The hydrochloric acid chemical formula is HCL,

if 1 liter of the HCL has 12mol, then 4.90ml or 0.0049 L of solution has 0.058 moles,

When the acid solution was diluted , we will get 175ml or 0.175 L  

so as we dilute the solution we will have the change in the concentration and that is calculated

0.058/0.175=0.3314

=0.3M

So the concentration of the solution that is diluted was found to be 0.3M

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suppose you need to prepare 100. ml of a solution with the 6.0 mg/l concentration of a dye and what you have is a 30. mg/l stock solution of the dye and pure water. what amounts of the liquids should be mixed?

Answers

To prepare 100ml of a solution with the 6.0mg/l concentration of a dye and you have a 30 mg/l stock solution of the dye and pure water, 20 ml of pure water should be mixed.

Solutions are made diluting more concentrated stock solutions.certain volume of the stock solution is transferred to a new container and is brought to a new volume.since, the total volume of solute is the same before and after dilution.

                      C0 V0  =  CdVd

            Where, C= concentration of stock solution

                         V= diluted volume of the stock solution

                          C= concentration of diluted solution

                         V= volume of the diluted solution

Here putting the values,

              30 mg/l * vo   = 6.0 mg/l  * 100ml

   

               VO =  20ml

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What is the reaction and product of each of the formulas


HCI + NaOH --> H₂O + NaCl

_C3H8 + 502 --> 3CO₂ + 4H₂O

2Li+F2 --> 2LiF

2AgNO3 + CuCl2 --> _Cu(NO3)2 + 2AgCl

Answers

Explanation:

1. HCI + NaOH --> H₂O + NaCl is a neutralisation reaction. The product is soluble sodium chloride salt and water.

2. _C3H8 + 502 --> 3CO₂ + 4H₂O is a propane combustion reaction. The product is carbon dioxide gas and water.

4. 2Li+F2 --> 2LiF is a combination reaction. The product is insoluble lithium fluoride solid

5.2AgNO3 + CuCl2 --> _Cu(NO3)2 + 2AgCl is a precipitation reaction. The product is copper(II) nitrate and an insoluble silver chloride salt(precipitate)

How many molecules are found in 25.00 moles of Sucrose Sugar, or C12H22O11?

Answers

Taking into account the definition of Avogadro's Number, 1.50575×10²⁵ molecules are found in 25.00 moles of Sucrose Sugar.

Avogadro's Number

Avogadro's number is currently defined as the number of atoms in 12 grams of carbon-12 and its known approximate value is 6.023×10²³.

In other words, Avogadro's Number is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance.

Amount of atoms in 25.00 moles of Sucrose Sugar

You can apply the following rule of three: if by definition of Avogadro's Number 1 mole of sucrose sugar contains 6.023×10²³ molecules, 25 moles of the compound contains how many molecules?

amount of molecules of sucrose sugar= (25 moles × 6.023×10²³ atoms)÷ 1 mole

amount of molecules of sucrose sugar= 1.50575×10²⁵

Finally, in 25.00 moles of Sucrose Sugar are present 1.50575×10²⁵ molecules.

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the electron configurations of five different elements are shown below. which of these elements is expected to have the largest second ionization energy (ie2)? (i) 1s22s22p63s1 (ii) 1s22s22p63s2 (iii) 1s22s22p63s23p1 (iv) 1s22s22p63s23p4 (v) 1s22s22p63s23p5

Answers

The electronic configuration which have highest second ionization energy will be "1s22s22p63s2".

The energy needed to free the outermost, or lowest bound, an electron from an element's 1+ ion is known as the second ionization energy. The secondary ionization energy of an element would be usually greater than the first since a positive charge greater strongly attracts electrons than a negative charge.

The electronic configuration is 1s22s22p63s2.

It can remove 2 electrons to gain positive charge.

By removing 2 electrons, it attain +2 charge

In mass spectrometry, a variety of ionization techniques are employed. Electron impact (EI) as well as Fast Atom Bombardment are the two traditional techniques that most chemists were familiar with (FAB).

Therefore, the correct answer will be option (ii)

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