If you have two samples that have the same mass but are composed of different elements, then both have the same formula mass both have the same number of atoms is true.
The atoms that have different elements but have same mass number are called as isobar. the number of the particles in the compound is called as Avogadro's number . it does not depend on mass number . 1 mole of substance contains 6.022 × 10²³ atoms.
Thus, it true that that two samples that have the same mass but are composed of different elements, and then both have the same formula mass both have the same number of atoms.
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sustainable development refers to development that meets society's current needs and sustainable development refers to development that meets society's current needs and does not impede future generations from meeting theirs maintains a consistent energy-in energy-out balance annually caps energy use at current annual levels gradually reduces energy use over time
The correct option is to gradually reduce energy use over time. Sustainable development aims to ensure that current needs are met while also protecting the ability of future generations to meet their own needs.
Reducing energy use over time is a key component of this, as it helps to reduce our current dependence on non-renewable resources and makes sure that these resources are not depleted for future generations. Additionally, reducing energy use over time can help to reduce carbon emissions and other environmental impacts, making it an important part of sustainable development.
The Importance of Sustainable Development for Future GenerationsSustainable development is an approach that considers the long-term effects of current actions and decisions. It recognizes that our current actions should not compromise the ability of future generations to meet their needs.
This means that energy use should be minimized, and should not exceed the current annual levels. Additionally, energy use should be gradually reduced over time, to ensure that it does not exceed current levels. This approach also maintains a consistent energy-in energy-out balance annually, so that energy use is managed in a sustainable way.
Complete Question:Sustainable development refers to development that meets society's current needs and:
Does not impede future generations from meeting theirs. Gradually reduces energy use over time.Caps energy use at current annual levels. Maintains a consistent energy-in energy-out balance annually.Learn more about the sustainable development :
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a buffer with a ph of 9.85 contains ch3nh2 and ch3nh3cl in water. what can you conclude about the relative concentrations of ch3nh2 and ch3nh3cl in this buffer? for ch3nh2, pkb
The solution will be a basic buffer.
The pH should be within 1 pH unit of the weak acid's pKa. This means that the acid and base concentrations should not differ by more than 10-fold. A buffer is a solution that can withstand changes in pH due to the addition of acid or base components. It can neutralize small amounts of added acids or bases and keep the pH of the solution relatively stable.
This is important for processes and reactions that require a specific stable pH range. Buffers maintain a stable pH by neutralizing added acids or bases. They are composed of weak acids and their conjugate bases, which exchange protons and hydroxide ions to form water. The Henderson-Hasselbalch equation describes pH as a function of PKA and the ratio of base concentration to acid concentration.
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What is the pattern for valence electrons down a group and across a period?.
While along a group they stay the same, the valence electrons rise over a time.
Describe an example of an electron.The tiniest and least massive component of an atom is an electron, which has a negative charge. In a neutral atom, the number of protons and electrons is equal. For instance, the hydrogen atom only contains one proton and one electron. While the uranium atom has 92 protons and, thus, 92 electrons.
In atoms, what do electrons do?The atom's negatively charged particles are called electrons. An atom's whole population of electrons generates a negative charge that counteracts the positive charge of the protons in the atomic nucleus.
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if the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.500 m, what is the concentration of the base in the flask?
The concentration of the base in the flask when the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.500 m is 1.0 M
Assume that stopping the titration when all of the bases in the flask have been neutralized by the H+ ions...
and I thought the equation was:
H+ + OH- <--> H2O
which is a 1:1 ratio (it takes one mole of H+ to neutralize every 1 mole of OH-)...this ratio means that M1V1 = M2V2 is true.
M1V1 = M2V2 simply means Molarity1 x Volume1 = Molarity2 x Volume2
so if your volumes are the same, then I'm just going to relabel: V1 = V2 = V
now you have:
M1V = M2V
the volume cancels out.
so M1 = M2
which means that the concentration of the base and the concentration of the acid should be the same...thus [OH-] = 1.0M
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determine the molarity of a nano3 aqueous solution that is 17.0% by mass given that its density is 1.153 g/cm3.
The molarity of the aqueous solution of NaNO3 is 2.30 M .
What is molarity of NaNO3?
Therefore, to calculate how many grams you obtain in that particular volume, utilize the solution's density.
1.00L x 1000mL/1L x 1.153g/1mL
= 1153g
Here, indicates this solution has a 17.0% NaNO3 content by mass. This indicates that for every 100.0 g of solution, you receive 17.0 g of NaNO3.
1153g solution x 17.0g NaNO3/100g solution
= 196.01 g NaNO3
Use the molar mass of NaNO3 to calculate how many moles are contained in that many grams.
196.01 x 1 mole NaNO3/84.9947 g/mol
= 2.30 moles of NaNO3
To find molarity the formula is ,
c = n/v
= 2.30 moles / 1.00L
= 2.30 M
The molarity of NaNO3 is 2.30M.
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Identify the compound that does not have dipole-dipole forces as its strongest force.
The compound that does not have dipole-dipole forces as its strongest force is CO₂.
The CO₂ contains polar bonds. in this O is more electronegative than C but polarity are symmetrically opposite to one another and hence CO₂ is not a polar molecular. So, CO₂ does not have dipole dipole force as the strongest force. The strongest type of intermolecular forces are present in the CO₂ molecule is the van der waals force.
Thus, The compound that does not have dipole-dipole forces as its strongest force is CO₂.
the question is not complete , the complete question is:
Identify the compound that does not have dipole-dipole forces as its strongest force.
a) CO₂
b) CH₃I
C) CH₂Cl₂
d) CH₃OCH₃
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8. four charges are at the corners of a square, with b and c on opposite corners. charges a and d, on the other two corners, have equal charge, while both b and c have a charge of 1.0 c. assume that the charge on a is such that the force on b is zero. note fbc the magnitude of the coulomb force between charges b and c. note fad the magnitude of the coulomb force between charges a and d. what is the ratio fbc/fad
Four charges form a rectangle having B and C on the corners that are opposite each other. Charge on A must be -0.35C in order for force B to be zero.
What in chemistry is a charge?
An electromagnetic field exerts a force on matter as a result of the physical attribute of charge. Positive or negative charges can exist in an electric field. The matter is regarded as neutral or uncharged if there is no net electric current present.
An electron charge is what?
The electron is the lightest known stable subatomic particle. It has a negative charge that is equivalent to 1.602176634 coulombs, which is regarded as the fundamental building block of electric charge.
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How is magnesium hydroxide used?.
The magnesium hydroxide used to treat occasional constipation in children and adults on a short-term basis.
Magnesium hydroxide can be used as a temporary remedy for children and adults who occasionally have constipation. Magnesium hydroxide is a component of a class of medications known as saline laxatives. It stimulates the retention of water. If this medication is used excessively or continuously, it may cause constipation to persist and cause a dependence on laxatives. Excessive use can also lead to dehydration, ongoing diarrhea, and mineral imbalances. Inform your physician if your symptoms persist or worsen. The over-the-counter drug "Milk of Magnesia," which contains magnesium hydroxide, is used to treat heartburn, occasional constipation, and upset stomach. It shouldn't be used continuously. There are chewable and liquid dosage variants of this drug. stress reduction and mood regulation.
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base your answer to the following question on the information below. a method used by ancient egyptians to obtain copper metal from copper (i) sulfide ore was heating the ore in the presence of air. later, copper was mixed with tin to produce a useful alloy called bronze. calculate the density of a 129.5-gram sample of bronze that has a volume of 14.8 cubic centimeters.
The correct answer is 8.75 g/cm³.
An alloy is a mixture of two metals in a particular ratio. Generally, alloys are harder than any pure state of metal. Bronze is an example of this kind of alloy. This is an example of homogenous mixture of tin and copper as bronze contains 50% tin and 50% copper.
Further, knowing about alloys, copper sulfide is not a mixture but a compound because it has two elements: Cu and S.
Given,
Weight of sample of bronze = 129.5 g
Volume = 14.8 cubic centimeters
To find density,
Density = Weight / volume
Density = 129.5 / 14.8
Density = 8.75 g/cm³
Therefore, the density of the bronze which is an alloy of Copper and Tin is 8.75 g/cm³.
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an 18- ev photon is absorbed by a searsium atom in its ground level. as the atom returns to its ground level, what possible energies can the emitted photons have? assume that there can be transitions between all pairs of levels. give answers in as
energy of the photon = 18 ev
energy of the atom after it absorbs the photon,
=(-20 +18) ev = -2ev
the electron moves from level n=1 to n=4.
possible energies of the emitted photons: 3.0 ev, 5.0 ev, 8.0 ev, 10 ev, 15 ev, 18 ev
An electron is a negatively charged subatomic particle that can be both sure to an atom or free.
An electron that is sure to an atom is one of the 3 number one types of particles inside the atom -- the opposite are protons and neutrons. Collectively, electrons, protons and neutrons form an atom's nucleus.
The hydrogen atom, as an example, has simply one electron and one proton. The uranium atom, alternatively, has 92 protons, and therefore, 92 electrons.
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FILL IN THE BLANK. complete the following sentences o3 has a resonance structure ch2cl2 has a resonance structure no2- ___ a resonance structure co2 ___ a resonance structure
The blanks will be filled as - [tex] O_{3}[/tex] has a resonance structure , [tex] CH_{2}[/tex][tex] Cl_{2}[/tex] does not have a resonance structure, [tex] NO_{2-}[/tex] has a resonance structure and [tex] CO_{2}[/tex] has a resonance structure.
Resonance structures are defined as the two or more Lewis structures of a molecules with mode than one atoms. The different structures depict the relocation of bonds within the structure while maintaining the octet rule.
The prerequisite for resonance to occur in a polyatomic molecule is presence of double bonds and lone pair. Ozone is made up of three oxygen atom, nitrite is made of two oxygen and one nitrogen atom and carbon dioxide is made of two oxygen and one carbon atom. All these structures have double bond and lone pair in common which maintains the octet rule in molecule along with delocalization of pi bonds.
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The complete question is attached in figure.
using the periodic table, determine the ion charges of the following elements if valence electrons were removed or added to reach the octet. barium
Given that the valence electrons were removed or added to the following elements to fulfill the octet, barium's charge would be +2
The octet rule generally refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have lesser than eight electrons, they tend to react and form more stable compounds.
This certainly means that the atom's valence shell has a resemblance with a noble gas. The octet rule states that the atoms like to have eight electrons only in their full outer shells.
In case of barium the valence electronic configuration is [Xe] [tex]6s^{2}[/tex]. So here we can see that in order to reach the nobel gas configuration Barium needs to loose only 2 electrons and after that barium will attain Xenon configuration. Hence the charge on Barium would be 2+.
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a mixture of nitrogen and hydrogen gas is compressed from a volume of to a volume of , while the pressure is held constant at . calculate the work done on the gas mixture. be sure your answer has the correct sign (positive or negative) and the correct number of significant digits.
The work done on the gas mixture is 297KJ.
W = -Pext(Vf-Vi)
P = 61.0 atm
Vi = 99.0 L
Vf = 51.0 L
put values in above expression
W = -Pext(Vf-Vi)
W = -61.0atm (51.0L - 99.0L)
W = 2928 atm.L
W = 2928 *101.33 J
W = 296694 J
W = 296.7 KJ
W = 297 KJ
In physics, work is the energy transferred to or from an item through the application of pressure alongside displacement. In its most effective form, for a consistent pressure aligned with the route of motion, it equals the manufactured from the force strength and the space traveled.
Work modifications the quantity of mechanical and internal energy possessed by gadgets. Whole work is achieved on a machine or item, energy is introduced to it.
The character of the work achieved can be categorized into three classes. they are +ve work, -ve work, and zero work. The character of work relies upon the perspective of pressure and displacement.
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What are radicals give 3 examples?.
H2SO4 (sulfuric acid): H2SO4 contains the chemical radical SO24. HNO3 (nitric acid): HNO3 contains the chemical radical NO3.
What purpose does sulfuric acid serve?Sulfuric acid is a crucial commodity chemical utilized in modern manufacturing, especially for the synthesis of phosphoric acid. Metal makers use it extensively because it is effective at eliminating oxidation from steel and iron. Sulfuric acid is a particularly hazardous substance.
Why isn't sulfuric acid employed?KI would result in HI in the presence of a weak acid. The HI is depleted to create I2 gas if sulfuric acid is utilized as the acid. As a result, alcohol cannot react with acid to form alkyl iodide. Due to this, sulfuric acid is not utilized in this process.
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the wittin reaction is a superior alternative to e2 reactions for the creation of carbon-carbon pi bonds because the position of such bond in the product is unambiguous (T/F)
(T)rue
It is true that the witting response is a better option than the e2 reaction for producing carbon-carbon pi bonds since the position of the bond in the final product is clear.
What does the chemical term "bonding" mean?Chemical bonding is the process through which atoms, molecules, or protons form a chemical link to create a chemical compound. The atoms in the resultant molecule are held together by these chemical bonds.
With an example, define bond in chemistry?When electrons are shared amongst atoms, a chemical bond is said to be covalent. An illustration of a lone pair is the bond that occurs when h2 and o2 atoms combine to make water. A limited electrostatic bond known as a hydrogen bond involves hydrogen acting as a link between two atoms.
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Does sodium and oxygen form an ionic compound?.
The fact that sodium will combine with oxygen to generate an ionic molecule indicates that this will happen.
How can you tell if a substance is ionic?As a general rule, ionic bonding can be seen in compounds where a metal bonds with a non-metal or a semi-metal. Molecular compounds are those that are made entirely of non-metallic elements or semi-metallic elements combined with non-metallic elements and exhibit covalent bonding.
What distinguishes ions from covalent bonds?When a metals reacts with a nonmetal, ionic compounds are typically created (or a polyatomic ion). When two nonmetals interact, covalent compounds are created. Due to the fact that gas is a nonmetal, binaries compounds hydrogen are typically covalent compounds as well.
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explain in detail how light energy is connected to carbon dioxide consumption by a plant at the molecular level.
Light energy is connected to carbon dioxide consumption by a plant at the molecular level through the process of photosynthesis.
How is light energy connected to carbon dioxide consumption at the molecular level?Light energy is transformed into chemical energy in the form of sugars through a process called photosynthesis. Water and carbon dioxide are converted into glucose (or other sugars) in a process that is fuelled by light energy, with oxygen being released as a by product. The glucose molecules offer two essential resources to organisms:.Those resources include both energy and fixed organic carbon.In addition to removing significant amounts of carbon dioxide from the atmosphere, photosynthetic organisms also convert carbon atoms into organic molecules. They use light to manufacture sugars, which they then release into ecosystems as chemical energy and fixed carbon.
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What is the correct order of events for cellular respiration?.
Thus, glycolysis, oxidative decarboxylation, Krebs cycle, electron transport chain, and oxidative phosphorylation are the processes of cellular respiration that should be performed in that order.
Which 5 processes include cellular respiration?The Krebs cycle, also called the citric acid cycle, transition reaction, pyruvate oxidation, and oxidative phosphorylation via the electron transport chain are the four steps of cellular respiration in eukaryotes.
A metabolic mechanism called cellular respiration breaks down glucose and generates ATP. The phases of cellular respiration include glycolysis, pyruvate oxidation, the Krebs cycle (or citric acid cycle), and oxidative phosphorylation.
In the cytoplasm of your cells, glycolysis—the first phase of cellular respiration—takes place. In this procedure, a glucose molecule is split into two pyruvate molecules (pyruvic acid).
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how many units of color would a dihybrid (a1a2 b1b2) individual have? (enter your answer as a number.)
A dihybrid cross examines how two distinct genes are transmitted from a pair of organisms. It displays the various phenotypic configurations for those two traits that the parents might be able to pass on.
What Is a Dihybrid Cross?You have tracked the inheritance of a characteristic in a monohybrid cross using Punnett squares. But what if you wish to monitor the inheritance of two traits? A dihybrid crosses two genes while doing so.By dissecting the word "dihybrid," which is a fantastic method to remember this:Di = two hybrid = a combination
Mendel's pea plant experiment is the most well-known dihybrid experiment. He put the shape and color of the seeds to the test.In the beginning, Mendel bred a pea plant that yielded spherical, yellow peas with a plant that produced wrinkled, green peas. These parents produced spherical, yellow peas in all of their offspring plants. Mendel discovered that the qualities of yellow and round predominate over those of green and wrinkled.To learn more About dihybrid cross refer to:
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Is melting chocolate a physical change?.
Yes, the melting of chocolate is a physical change.
A physical change is defined as the change that involves in the formation of the no new substance and there will be no change in the chemical composition. so. the melting of chocolate is called as the physical change. when we eat chocolate it will melt in mouth but there will no new substance form or there will be no change in the chemical composition. the phase change only occurs from the solid phase to the liquid phase. while the digestion of chocolate is a chemical change.
Thus, Yes, the melting of chocolate is a physical change.
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Write a balanced half-reaction describing the reduction of aqueous zinc cations to solid zinc.
The balanced half-reaction describing the reduction of aqueous zinc cations to solid zinc is Zn²⁺ (aq) + 2e- ----> Zn (s)
Zinc(II) cations gain two electrons and became solid zinc with neutral charge.
Reduction lowers the oxidation number because an element or ion gains electrons. Reduction takes place at the cathode.
Oxidation reactions increase the oxidation number of an element because the element or ion lost electrons in a chemical reaction. Oxydation takes place at the anode.
Therefore,the balanced half-reaction describing the reduction of aqueous zinc cations to solid zinc is Zn²⁺ (aq) + 2e- ----> Zn (s)
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How do you check the correct temperature of food?.
Utilizing a food thermometer is the best way to determine when your food is prepared.
Using food thermometers to analyze Get the greatest flavor out of food by cooking it to a safe temperature, avoiding overcooking, and Safely handle and store food.
You've probably heard that chicken is done when the inside is not pink and that hamburgers are ready when their juices run clear. Well, it can be challenging to evaluate those standards sometimes. Utilizing a food thermometer is the best way to determine when your meal is prepared. You won't be able to be assured that dangerous bacteria have been eliminated from your food until it reaches a specific temperature.
Hence, food thermometer ensure optimum cooking of food.
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What are the categories of Scope 3 emissions?.
The categories of Scope 3 emissions include capital goods, upstream transport and distribution, purchased products and services, fuel combustion and energy consumption, and employee commuting.
Scope 3 emissions can be divided into 15 categories, albeit not all of them will apply to all enterprises. Fuel combustion and downstream of the organization's operations are both considered to be sources of scope 3 emissions. The Greenhouse Gas Protocol specifies three emissions streams, one of which is called Scope 3 emissions. (GHGP). Emissions that are directly attributable to operations that a reporting organization owns or manages are covered by scope 1. Scope 2 emissions are those connected to the production of energy that has been purchased, such electricity. The activities from assets that the reporting organization does not own or control, but that it does use, result in scope 3 fuel combustion.
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Does moles represent concentration?.
The amount of dissolved material per unit volume of solution, measured in moles per litre, is the most common way to express the concentration of a solution as its molar concentration.
For chemists, the number of moles of a chemical per unit volume is known as molarity, which also means concentration. The letter "M" stands for concentration units. It stands for either moles per cubic decimeters or moles per litre, denoted by the symbols mol/L or mol L-1. Concentration is the ratio of the amount of solute to the amount of solution, as you stated with "concentration as g/L of Kg/L." The amount of moles of a solute per liter of solution is measured by molarity, a unit of concentration. The concentration increases with the amount of solute present, increasing the molarity of the solution as a result. On the other hand, the concentration and molarity decrease as the amount of solvent increases.
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What volume of a 2. 000 m hcl solution is needed to generate 100. 0 ml of a 0. 1000 m solution of hcl?.
The volume of 2.0 M HCl required to make the 100 ml of 0.1000 M solution is 5.0 ml.
What is a dilution formula?
The dilution formula is used to prepare the diluted solutions using a strong stock solution.
The dilution formula is given below:
[tex]C_{1} V_{1} = C_{2} V_{2}[/tex]
Where,
[tex]C_{1}[/tex] is the initial concentration
[tex]C_{2}[/tex] is the final concentration.
[tex]V_{1}[/tex] is the initial volume.
[tex]V_{2}[/tex] is the final volume.
Calculation:
In the given problem, initial concentration, final concentration, and final volume are given.
It is required to find the initial volume.
To find the initial volume, rearrange the equation as follows:
[tex]V_{1} =\frac{C_{2} V_{2} }{C_{1}}[/tex]
Substitute the given values in the equation,
[tex]V_{1}[/tex] = (0.1000 M × 100 ml) ÷ 2 ml
= 10 ÷ 2
= 5 ml
Hence, the initial volume (volume of HCl required) is 5 ml.
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write a conclusion for the experiment including the concentration of acetic acid in household vinegar as determined by the class as a whole.
Finding the molar concentration or acetic acid present in vinegar was the aim of this inquiry. According to this experiment, acetic acid has a concentration of 0.44 mol/L (around 3.87%).
What ingredients are in vinegar?Acetic acid but also water are combined to create vinegar through a two-step alcoholic fermentation. First, yeast consume any liquid derived from a plant source, also including fruits, whole carbohydrates, potatoes, or rice, and feast on the complex carbohydrates within. It ferments into alcohol.
What is the benefit of vinegar?Bacteria and other infections can be killed by vinegar. Vinegar has long been used to clean, disinfect, and cure ear infections, warts, lice, and nail fungus.
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If you had a solution containing a mixture of magnesuun, strontium, and banum, how could you separate the three
elements (Hint Consider process of elimination)
If you had a solution containing a mixture of magnesium, strontium, and barium, then we could separate these three elements using hydrogen sulphide, chromic acid and sulphuric acid.
To separate three elements from the solution, first we need to remove the magnesium element by adding hydrogen sulphide(H₂S) in the solution. It forms magnesium sulphide(MgS) as a precipitate and remaining ions are used for further separation.
To separate the barium element, we need to add chromic acid in the solution, which precipitate the barium chromate(BaCrO₄) from the solution.
In the remaining solution of strontium, we need to add sulphuric acid, which precipitates out the strontium sulphate(SrSO₄) as a product.
Therefore, to separate magnesium, strontium, and barium, we need to use hydrogen sulphide, chromic acid and sulphuric acid.
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Draw the skeletal structure of an achiral 3° alkyl bromide with molecular formula c6h13br. There are multiple possible answers
The alkyl bromide with the formula C₆H₁₃Br is named as bromo-hexane. The Br if placed on any end carbon the compound will be achiral.
What is chirality?A molecule is said to be chiral if it contains an element with its each valency occupied by different groups. In a hydrocarbon chain a carbon atom can be chiral center if all the four valences of carbon is occupied by different groups.
Carbon occupied with same groups are achiral. Alkyl halides such as bromo hexane are formed by the reaction of alkanes with hydrogen halides.
Bromo hexane contains six carbon atoms, 13 hydrogen and one bromine atoms. The Br can be substituted to any carbon in the chain but to make it achiral Br should be placed on any end carbon as in the image.
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a solution contains 0.021 m cl- and 0.017 m i-. a solution containing copper (i) ions is added to selectively precipitate one of the ions. at what concentration of copper (i) ion will a precipitate begin to form? what is the identity of the precipitate? ksp(cucl)
Concentration of copper (I) is 3.00 × 10⁻¹⁰ which is concentration is low that's why Copper (I) iodide would precipitate first.
Iodate and iodide are they the same thing?Iodide and iodate, often as the potassium salt, are the two iodine compounds that is used to iodize salt. Iodate is preferable for tropical damp circumstances since it is less soluble and even more stable than iodide. Iodized salt is the common term used to describe both.
Briefing:
[tex]\begin{aligned}&K_{s p} \text { of } \mathrm{CuCl}=1.0 \times 10^{-6} \\&K_{s p} \text { of } \mathrm{Cul}=5.1 \times 10^{-12}\end{aligned}[/tex]
For CuCl[tex]\\$$K_{s p}=\left[\mathrm{Cu}^{+}\right]\left[\mathrm{Cl}^{-}\right]$$[/tex]
Applying a value here on following equation:[tex]\begin{aligned}&1.0 \times 10^{-6}=\left[C u^{+}\right] \times 0.021 \\&{\left[C u^{+}\right]=\frac{1.0 \times 10^{-6}}{0.021}=4.76 \times 10^{-5} \mathrm{M}}\end{aligned}[/tex]
Concentration of Copper(I) ion [tex]4.76 \times 10^{-5} \mathrm{M}[/tex][tex]\begin{aligned}&5.1 \times 10^{-12}=\left[C u^{+}\right] \times 0.017 \\&{\left[C u^{+}\right]=\frac{5.1 \times 10^{-12}}{0.017}=3.00 \times 10^{-10} M}\end{aligned}[/tex]
Concentration of Copper(I) ion [tex]3.00 \times 10^{-10} M[/tex]We require a lower concentration for copper (I) ions for both the precipitated or copper (I) ions. The first substance to precipitate is copper (I) iodide.
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how many moles of xenon gas are necessary to exert a 0.64atm pressure in an 8.5l container at 300.0k? your answer should have two significant figures (round your answer to two decimal places). use r
So order to achieve a 0.64 atm pressure in such an 8.5 l container around 300.0 k, 0.22 moles if xenon gas were required.
What is a xenon used for?In some specialized light sources, xenon is employed. It is activated by an electrical discharge, which results in a stunning blue glow. Sunbed lamps, bactericidal lamps for use in food processing, and high electrical flash bulbs for photographers are all uses for xenon lamps.
Briefing:Typically, the mathematical formula for such ideal gas is,
n=Pv/RT
n=0.65*8.5/0.08*300
n=0.22moles
The amount of xenon gas required to exert 0.64 atm of force in an 8.5 L container around 300.0 K is therefore expressed in moles.
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