The average kinetic energy of the gas particles is greater in container B because it has a higher temperature.
What is temperature?The term temperature refers to a measure of the average kinetic energy of the molecules of body. This means that molecules that are at high temperature tend to move faster than the molecules that are at low temperature.
As such, the higher temperature of the molecules of the gas in B shows that the molecules in B are faster than those in A thus the correct statement is; "the average kinetic energy of the gas particles is greater in container B because it has a higher temperature."
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Missing parts;
The picture shows two containers filled with a gas.
Two equally sized containers are shown with tight lids and each container has a thermometer. The container on the le is labeled A and the one on the right is labeled B. The thermometer inside container B shows a higher temperature than the thermometer inside container A.
Which statement is correct?
The average kinetic energy of the gas particles is greater in container A because it has a lower temperature.
The average kinetic energy of the gas particles is greater in container B because it has a higher temperature.
The gas particles in both containers have the same average kinetic energy because t have the same volume.
The gas particles in both containers have the same average kinetic energy because t have equal number of particles.
Consider this reaction: 6 CO2 + 6 H2O + light equation C6H12O6 + 6 O2 If there were 2.38 x 102 g of H2O, 18.6 moles of CO2, and plenty of light, which reactant would be the limiting reactant?
H₂O would be the limiting reactant.
Balanced chemical equation:
6CO₂ + 6H₂O + light equation → C₆H₁₂O₆ + 6O₂
The amount of product that can be created is constrained by the reactant that is consumed first in a chemical reaction, commonly referred to as the limiting reactant (or limiting reagent).
Given
No. of moles of CO₂ = 18.6
Mass of H₂O = 2.38 × 10² g = 238g
No. of moles of H₂O = Given mass/ Molar mass
= 238 / 18 = 13.22 moles
Moles of H₂O = 13.22
According to the balanced chemical equation
6 moles of CO₂ react with 6 moles of H₂O
So the reactant that has less number of moles will be consumed first.
As the No. of moles of H₂O < No. of moles of CO₂
So, H₂O is the limiting reactant with 13.22 moles.
Hence, H₂O would be the limiting reactant.
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What is the [OH-] if the [H3O+] is 1 x 10 -6?
The answer is [OH⁻] = 1 x 10⁻⁸.
To find OH⁻, divide the ionic product of water by [H₃O⁺] as :
OH⁻ + H₃O⁺ = H₂O
[OH⁻] = 1 x 10⁻¹⁴ / 1 x 10⁻⁶[OH⁻] = 1 x 10⁻⁸Once balanced, what is the coefficient of HCl in the following reaction:
Mg + HCl → MgCl2 + H2
Group of answer choices
A. 1
B. 2
C. 0
D. 3
Once balanced, the coefficient of HCl in the following reaction: Mg + HCl → MgCl2 + H2 is 2 (option B).
How is a chemical reaction balanced?A chemical reaction is said to be balanced when the number of moles of each atom of an element on both sides of the equation is the same.
According to this question, magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas as follows:
Mg + HCl → MgCl2 + H2
However, to balance the equation, we make use of coefficients, which are numbers placed in front of a compound to make the number of moles of atoms equal.
The balanced equation is as follows:
Mg + 2HCl → MgCl2 + H2
Therefore, once balanced, the coefficient of HCl in the following reaction: Mg + HCl → MgCl2 + H2 is 2.
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How do scientists believe that chloroplasts got into photosynthetic cells?
Let's see what I can come up with here. So chloroplasts are made up of several separate sections. They have the stroma (the liquid in which everything is contained) and the grana (plural of granum and is a stack of thylakoids). Chlorophyll is found in thylakoids.
The chlorophyll absorbs light (not green light since that is what is reflected to our eyes). Light energy is utilized to split water into hydrogen ions, electrons, and oxygen gas. With these ions and electrons, the electron transport chain, with the assistance of enzymes, produces ATP and NADPH. In all living cells, ATP is the primary source of energy. Because light is required to split water, this step of photosynthesis is known as the "light reaction."
The ATP and NADPH are transported into the stroma, where the "dark reaction" can take place. And, despite the name, it does not occur at night since our energy source does not store well. You've probably heard of the Calvin Cycle. The Calvin Cycle basically uses water, CO2, and the energy from earlier to generate carbohydrates, which are then stored in various ways. Glucose is the most well-known monosaccharide, although there are others, as well as countless polysaccharides such as cellulose and starch.
Thank you,
Eddie
Amount of H2SO4 in 2 litres, having 28% concentration solution
Answer:
The amount of H2SO4 in 2 litres is 560gm.
Explanation:
Given,
mass of sulphuric acid / volume of solution =28%
Therefore, mass of sulphuric acid in 100 ml solution is 28 grams.
We know that,
volume of solution is 2000ml.
Thus,
mass of sulphuric acid in 2000ml is
(28/100) ×2000
=28×20
=560gm
Thus, the mass of sulphuric acid is 560gm.
A sample of nitrogen gas has a volume of 3.0 L at 25 degrees Celsius and 720 torr. What would the volume be at STP? (Hint: This is a combined gas law question).
Answer:
2.60 L
Explanation:
To find the new volume, you need to use the Combined Gas Law:
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]
In this equation, "P₁", "V₁", and "T₁" represent the initial pressure, volume, and temperature. "P₂", "V₂", and "T₂" represent the final pressure. volume, and temperature.
At STP, the pressure is 1.0 atm and the temperature is 273 K. Before you can plug the values into the equation, you need to convert pressure from torr to atm and the temperature from Celsius to Kelvin.
P₁ = 720 torr / 760 = 0.947 atm P₂ = 1.0 atm
V₁ = 3.0 L V₂ = ? L
T₁ = 25 °C + 273 = 298 K T₂ = 273 K
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex] <----- Combined Gas Law
[tex]\frac{(0.947atm)(3.0L)}{298K}=\frac{(1.0atm)V_2}{273K}[/tex] <----- Insert values
[tex]\frac{2.84}{298K}=\frac{(1.0atm)V_2}{273K}[/tex] <----- Multiply 0.947 and 3.0
[tex]0.00954=\frac{(1.0atm)V_2}{273K}[/tex] <----- Simplify left side
[tex]2.60={(1.0atm)V_2}[/tex] <----- Multiply both sides by 273
[tex]2.60L=V_2[/tex] <----- Divide both sides by 1.0
Hydrogen gas has a density of 0.090/gL, and at normal pressure and 0.214°C one mole of it takes up 22.4L. How would you calculate the moles in 370.g of hydrogen gas?
Set the math up. But don't do any of it. Just leave your answer as a math expression.
Also, be sure your answer includes all the correct unit symbols.
how to set up this equation?
moles= ???
Answer:
See below
Explanation:
370 g / .090 g/l = _____?___ liters
take that answer then :
? liters / 22.4 liters / mole = # moles done!
There are approximately 183.50 moles of hydrogen gas in 370.g of hydrogen gas.
The number of moles in 370.g of hydrogen gas using the given information.
In the given example,
Density of hydrogen gas = 0.090 g/L
Molar volume at normal pressure and 0.214°C = 22.4 L/mol
So, we calculate the volume of hydrogen gas (in L) using the given mass and density:
Volume (in L) = mass (in g) / density (in g/L)
Volume (in L) = 370.g / 0.090 g/L
Volume (in L) ≈ 4111.11 L
By using the molar volume, calculate the number of moles:
moles = Volume (in L) / Molar volume (in L/mol)
moles = 4111.11 L / 22.4 L/mol
moles ≈ 183.50 moles (rounded to two decimal places)
Hence, there are approximately 183.50 moles of hydrogen gas in 370.g of hydrogen gas.
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Which of the following properties allows water molecules to stick to othe types of molecules?
A) Viscosity
B) Adhesion
C) Surface Tension
D) Density
Answer:
B.) Adhesion
Explanation:
A.) is incorrect. Viscosity is a measure of internal friction that affects the fluidity of a liquid.
B.) is correct. Adhesion is the ability of water to stick to other substances (which are not water).
C.) is incorrect. Surface tension is the tension created by the bonds of the surface particles.
D.) is incorrect. Density is a ratio that compares mass to volume.
Based on periodic trends and the data in the table above, which of the following is the most probable value for the ionic radius of K+?
Based on periodic trends, the most probable value for the ionic radius of K⁺ is 133 pm.
What are periodic trends?
Periodic trends are the observation which are seen in the chemical and physical elements found in the periodic table.
Periodic trends is based on the periodicity of elements.
Periodicity is the variation seen in the chemical and physical properties of the elements in the period table in a regular pattern, both down the groups and across the periods.
The periodic trends observed in metallic ions is that ionic radius of metallic ions increase down a group but decreases across a period.
Based on this periodic trend, the most likely size of the potassium ion, K⁺ is 133 pm.
In conclusion, the ionic radius of metallic ions increase down a group and decrease across a period.
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If you do a lab that burns Magnesium in pure Oxygen what would the empirical formula of the compound be if you started with 0.6 g Magnesium and 0.4 g of Oxygen?
Group of answer choices
A. Mg2O2
B. Mg2O3
C. Mg3O2
D. MgO
Answer:
Empirical Formula = MgO
Kindly award branliest
Explanation:
Elements = Mg O
Mass/ 0.6g/ 0.4g/
RAM 24 16
= 0.025 0.025
Divide by
the smallest = 0.025/ 0.025/
value. 0.025 0.025
Mole ratio = 1 : 1
Empirical Formula = MgO
=> The approximate mss of an electron is 1/10²⁷ g , Calculate the uncertainty in its velocity if the uncertainty in its position were of the order of 1/10¹¹ m ( h = 6.6 × 1/10³⁴ kg m² per sec ) ..
Answer:
Δx(m.Δv)=h/4π
here ,
Δv = uncertainty in velocity
10−11×10−27×Δv=6.626×10−34/4×22/7
=5.25×103ms−1
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here we go ~
According to Heisenberg's uncertainty principle :
[tex]\qquad \sf \dashrightarrow \: \Delta x \Delta p \geqslant \cfrac{h}{4 \pi} [/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta x \cdot m \Delta v \geqslant \cfrac{h}{4 \pi}[/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant \cfrac{h}{4 \pi \cdot m \Delta x}[/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant \cfrac{6.6 \times 10 {}^{ - 34} }{4 \pi \cdot 10 {}^{ - 27} \times 10 {}^{ - 3} \times 10 {}^{ - 11} }[/tex]
[tex] \textsf{ [ we took } [/tex][tex]{ {10}^{-3} } [/tex][tex] \textsf{because mass of electron is} [/tex][tex] \textsf{ given in grams that need to be converted into kg ]} [/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant \cfrac{6.6 }{4 \pi } \times \cfrac{10 {}^{ - 34} } {10 {}^{ (- 27 - 3 - 11)} } [/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant \cfrac{6.6 }{4 \times 3.14 } \times \cfrac{10 {}^{ - 34} } {10 {}^{ - 41} } [/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant \cfrac{6.6 }{4 \times 3.14 } \times {10 {}^{ 7}}[/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant \cfrac{6.6 }{12.56 } \times {10 {}^{ 7}}[/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant0.525\times {10 {}^{ 7}}[/tex]
[tex]\qquad \sf \dashrightarrow \: \Delta v \geqslant5.25\times {10 {}^{ 6}} \:\:m/s[/tex]
How could you prepare 4-methyl-3-hexanone from ketone containing no more than six carbon atom?
First base abstract a proton from acidic hydrogen gives carbanion.
What is a carbon atom?
A carbon chain's fundamental carbon atoms are those at each end. For instance, butane contains two basic carbon atoms. A secondary carbon atom, represented by the symbol 2°, is a carbon atom joined to two more carbon atoms.The first electron shell of carbon has two electrons, whereas the second one contains four of the available eight spaces. Carbon has two electron shells. Atoms share their outermost shell's electrons when they combine to form bonds. Since the outer shell of carbon has four vacant spaces, it can form bonds with four additional atoms.The first two electrons fill the inner shell, which is the conduction (inner) shell, and the remaining four are left in the second shell, which is the valence (outer) shell because carbon has an atomic number of six (six protons and six electrons in a neutral atom).Here First base abstract, a proton from acidic hydrogen gives carbanion
Which undergoes enolate form, then it reacts with CH3I, gives4-methyl-3-hexanone as below:
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Water is a(n)______ molecule, and it easily dissolves _______ molecules.
Assuming ideal solution behavior, what is the boiling point of a solution of 115.0 g of nonvolatile sucrose (table sugar), C₁₂H₂₂O₁₁ (342.300 g/mol), in 350.0 g of water (Kb = 0.512 °C m⁻¹; boiling point = 100.0 °C)?
The boiling point of the solution will be 100.97 ° C.
[tex]T_f[/tex], pure water = 0.00 ° Celsius.
[tex]T_b[/tex] , pure water = 100° Celcius
[tex]K_b[/tex] = 0.512 C kg/mol
[tex]K_f[/tex] = -1.86 C kg/mol.
Given,
[tex]K_b = \frac{0.512 C kg}{mol}[/tex]
[tex]m = \frac{115g \frac{mol }{342.300g} }{0.35 kg}[/tex]
m = 0.95
i = 2 ( assuming no ion pairing)
Now, recall,
Δ[tex]T_b[/tex] =[tex]iK_bm[/tex]
Hence,
Δ[tex]T_b[/tex] = [tex]iK_bm[/tex]
= 2 × 0.512 × 0.95
= 0.97 °C
Therefore, the boiling point of the solution will be 100.97 °C.
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please solve this fast
Which Inorganic Substance has a melting point of -101°C and a boiling point of -35°C?
Group of answer choices
A. Chlorine
B. Hydrogen
C. Hydrogen Sulfide
D. Hydrogen Chloride
The inorganic substance that has a melting point of -101°C and a boiling point of -35°C is chlorine (option A).
What is melting and boiling point?Melting point is the temperature at which the solid and liquid phases of a substance are in equilibrium.
On the other hand, the boiling point is the temperature at which a liquid boils, with the vapor pressure equal to the given external pressure.
Chemical elements and compounds have specific boiling and melting points that distinguishes them chemically.
The following are the melting and boiling point of the given compound and elements respectively;
Chlorine - -101°C and -35°CHydrogen: -259.2°C and -252.9 °CHydrogen sulfide: -85.5 °C and -60°CHydrogen chloride: -114.2 °C and - 85°CTherefore, the inorganic substance that has a melting point of -101°C and a boiling point of -35°C is chlorine.
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Predict and balance the following reaction:
Ag + Cu(NO3)2 →
Group of answer choices
A. Ag + Cu(NO3)2 → Ag + Cu(NO3)2
B. 2Ag + Cu(NO3)2 → Cu + 2AgNO3
C. The reaction does not occur.
D. Ag + Cu(NO3)2 → Cu + Ag(NO3)2
The prediction of the products and the balanced form of the above incomplete equation is as follows: Ag + Cu(NO3)2 → Cu + Ag(NO3)2 (option D).
How to balance a chemical reaction?According to this question, silver reacts with copper nitrate to form products that were not stated.
However, this reaction is an example of a displacement reaction, hence, silver will displace or replace copper in the compound to form copper and silver nitrate as products. The reaction is given as follows:
Ag + Cu(NO3)2 → Cu + Ag(NO3)2
This chemical reaction is said to be balanced because the number of moles of each atoms on both sides of the equation is the same.
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Based upon the ion charge of the following polyatomic ions, predict the formula for the following compounds.
sulfate = SO42
phosphate = PO43
hydroxide OH-
sodium hydroxide
O Na(OH)2
O Na(OH)3
O Na₂OH
O NaOH
Answer:
D.) NaOH
Explanation:
Sodium always forms the cation, Na⁺.
Hydroxide is always written as OH⁻.
The compound should have an overall charge of 0 (be neutral). As you can see, the charges perfectly balance out (+1 + (-1) = 0). Therefore, there only needs to be one atom of each ion. The ionic compound is thus NaOH.
is there any methods to determine number of water crystallization?
Answer:
In the formula, we can see that for each unit of copper(II) sulfate, there are five molecules of water associated with it. One way to determine the amount of water of crystallization in a hydrated salt is to use volatilization gravimetry
State whether the following liquids are miscible with hexane (C6H14) by entering "yes" or "no".
Benzene, C6H6
iron (IIl) nitrate, Fe(NO3)3
Sulfuric acid, H2SO4
Benzene, C6H6 is miscible with hexane (C6H14) but iron (IIl) nitrate, and Sulfuric acid, H2SO4Fe(NO3)3 are not miscible with hexane (C6H14)
Since organic or non polar dissolves in nom polar solvent.here both benzene and hexane (C6H14) are non polar solvents.But iron (IIl) nitrate, Fe(NO3)3 and Sulfuric acid, H2SO4 are inorganic and polar, therefore cannot dissolve with non polar solvent like hexane.
Miscible is a flowery heard that oil and water aren't very miscible substances, while seltzer and orange juice are miscible and scrumptious.Miscible beverages are also described as liquids that can blend to form a homogeneous solution. Miscible drinks generally blend with out limit, meaning they may be soluble at all quantities.
Miscible approach the materials blend completely. If substances are miscible, they're also absolutely soluble in each other no matter the order of creation. for example, tetrahydrofuran and water are miscible.
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In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. Which postulate of kinetic molecular theory best explains how this is possible? (3 points)
Attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly.
Collisions between gas particles are elastic; there is no net gain or loss of kinetic energy.
Gases consist of a large number of small particles, with a lot of space between the particles.
Gas particles are in constant, random motion, and higher kinetic energy means faster movement.
Collisions between gas particles are elastic; there is no net gain or loss of kinetic energy this postulate of Kinetic Molecular Theory best explain that how this is possible.
Hence, Option B is correct answer.
What is Kinetic Molecular Theory ?The Kinetic Molecular Theory or KMT states that gases are composed of a large number of particles. In these particles are much smaller than the distance between particles. No attraction or repulsion between these particles.
What are the Postulates of Kinetic Molecular Theory ?The postulates of kinetic theory of gases are:
Collision are perfectly elastic. No energy is lost or gained from collision. There is no change in energy of either the particles or the wall upon collision. The lighter gas molecules moves fast as compared to heavier molecules.Collisions between gas particles or collisions with the vessel walls are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the vessel.
Thus from the above conclusion we can say that Collisions between gas particles are elastic; there is no net gain or loss of kinetic energy this postulate of Kinetic Molecular Theory best explain that how this is possible.
Hence, Option B is correct answer.
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What is the specific heat of a substance if 1500 J are required to raise the temperature of a 300.0 g sample from 25°C to 40°C?
Group of answer choices
A. 33 J/g°C
B. 333 J/g°C
C. 4.18 J/g°C
D. .33 J/g°C
Answer:
D.) 0.33 J/g°C
Explanation:
To find the specific heat, you need to use the following equation:
Q = mcΔT
In this equation,
-----> Q = energy (J)
-----> m = mass (g)
-----> c = specific heat (J/g°C)
-----> ΔT = change in temperature (°C)
You can plug the given values into the equation and simplify to isolate "c".
Q = mcΔT <----- Equation
1500 J = (300.0 g)c(40 °C - 25°C) <----- Insert values
1500 J = (300.0 g)c(15) <----- Subtract
1500 J = (4500)c <----- Multiply 300.0 and 15
0.33 = c <----- Divide both sides by 4500
Find q when 22.0 g of water is heated from 29.0°C to 100.0°C.
Answer:
6530 J
Explanation:
To find the value of "Q", you need to use the following equation:
Q = mcΔT
In this equation,
-----> Q = energy/heat (J)
-----> m = mass (g)
-----> c = specific heat capacity (J/g°C)
-----> ΔT = change in temperature (°C)
The specific heat capacity of water is 4.182 J/g°C. You can plug the given values into the equation and solve for "Q". The final answer should have 3 significant figures because the lowest number of sig figs among the given values is 3.
Q = ? J c = 4.182 J/g°C
m = 22.0 g ΔT = 100.0 °C - 29.0 °C = 71.0 °C
Q = mcΔT
Q = (22.0 g)(4.182 J/g°C)(71.0 °C)
Q = 6530 J
Approximately 6461.9 joules of heat are required to heat 22.0 g of water from 29.0°C to 100.0°C.
Given:
mass of water, m = 22.0 g
Specific heat capacity of water, c = 4.184 J/g°C
Change in temperature, ΔT= 100.0°C - 29.0°C = 71.0°C
The formula for the heat absorbed or released during a temperature change:
q = m × c ×ΔT
where:
q = heat (in joules, J)
m = mass of the substance (in grams, g)
c = specific heat capacity of the substance (in J/g°C)
ΔT = change in temperature (in °C)
For water, the specific heat capacity is approximately 4.184 J/g°C.
Putting the values into the formula and calculating q:
q = 22.0 g × 4.184 J/g°C ×71.0°C
q ≈ 6461.9 J
Thus, approximately 6461.928 joules of heat are required.
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The value of x in Fe(NH₂)₂(SO4)₂ xH₂O can be found by determining the amount in mol of sulfate in the compound. A 0.982 g sample was dissolved in water and excess BaCl₂(aq) was added. The precipitate of BaSO, was separated and dried and found to weigh 1.17 g.
a) Calculate the amount, in mol, of BaSO4 in the 1.17 g of precipitate.
b) Calculate the amount, in mol, of sulfate in the 0.982 g sample of Fe(NH₂)₂(SO4)₂ XH₂O.
c) Calculate the amount, in mol, of iron in the 0.982 g sample of Fe (NH₂)₂(SO4)2 xH₂O.
d) Determine the mass, in g, of the following present in the 0.982 g sample of Fe(NH₂)₂(SO₂)₂ xXH₂O:
(i) iron (ii) ammonium (iii) sulfate.
e) Use your answer from part (d) to determine the amount in mol of water present in the 0.982 g sample of Fe(NH₂)₂(SO4)₂ xH₂O.
Answer: e
Explanation: ima be real i searched it up lol
what is the correct iupac name for the following structure ch3-ch2-ch=ch2
The correct IUPAC name of the following structure CH3-CH2-CH=CH2 is But - 1 - ene
IUPAC rules for alkene nomenclatureThe parent alkene is chosen to have the longest carbon chain containing the carbon-carbon double bond.The alkane's suffix "ane" is changed to "ene." An alkene is referred to as a diene or triene depending on whether a double bond appears twice or three times in the parent chain.the location of side chains or double bonds denoted by the numbers 1, 2, 3, etc.The carbon atom in the double bond, which is written directly before the suffix "ene," receives the lowest number because it is the longest chain and is numbered from that end. If both sides of a double bond receive the same number as the chain is being numbered, the carbon chain is numbered so that the substituent receives the lowest number.Hence the structure CH3-CH2-CH=CH2 is named on the basis of the above rule as but - 1 - ene.
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Definition
a visual representation of data that uses unconnected plotted points
A student who prefers to study by recalling personal examples that connect to what is being learned, makes lists of ways to use skills in
real scenarios (like at work), and starts a discussion with another student to talk about a topic most likely prefers which learning style?
Oa. Visual
O b. Auditory
O c. Reading Writing
Od. Kinesthetic
B. A student who prefers to study by recalling personal examples that connect to what is being learned, makes lists of ways to use skills in real scenarios (like at work), and starts a discussion with another student to talk about a topic most likely prefers Auditory.
What is Auditory learning style?
Auditory learning style is a method of learning that involves listening.
Auditory learning means that a student learns most effectively by listening.
In Auditory learning style, students would prefer listening to a lecture over reading a textbook, or hearing the instructions for a project instead of figuring it out hands-on.
Thus, a student who prefers to study by recalling personal examples that connect to what is being learned, makes lists of ways to use skills in real scenarios (like at work), and starts a discussion with another student to talk about a topic most likely prefers Auditory.
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Question 6 (Essay Worth 5 points)
(03.04 MC)
What is the name of Pb(NO3)2? Explain how you determined the bond type and the steps you used to determine the naming convention for the compound.
The correct name for the compound is written as lead II trioxonitrate V.
What is the bonding?We know that a compound is formed when atoms are bonded together. The bond that holds atoms together could be ionic, metallic or covalent. We know that in Pb(NO3)2, there is both ionic and covalent bonding.
This is because, the kind of bond between the lead II ion and the nitrate ion is an ionic bond while the bond between the nitrogen and the oxygen atoms in the nitrate ion is covalent bond.
Hence, the correct name for the compound is written as lead II trioxonitrate V.
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An oven-cleaning solution is 40.0% (by mass) NaOH.
If one jar of this product contains 458 g of solution, how much NaOH (by mass) does it contain?
The amount of NaOH by mass the jar contains will be 183.2 g
Percent compositionThe percent by mass of NaOH in the oven-cleaning solution is 40.0%.
This means that for every 100 g of the cleaning solution, there would be 40 g of NaOH.
Now, the jar in question contains 458 g of this solution which is 40.0% NaOH by mass.
The amount of NaOH in the jar can be calculated as:
40/100 x 458 = 183.2 g
This means that 458 g of the oven-cleaning solution that is present in the jar contains 183.2 g of NaOH.
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How many atoms in 56.4 g of platinum (Pt)
56.4 g of platinum will contain 1.7417 x [tex]10^{23}[/tex] atoms
Number of atoms in substancesAccording to Avogadro, 1 mole of any substance contains 6.022 x [tex]10^{23}[/tex] atoms of the substance.
The problem is we don't know how many moles of platinum that are present in 56.4 g. Thus, the first thing is to calculate the number of moles of platinum present in 56.4 g of the substance.
This can be achieved by using the formula, mole = mass/molar mass. Keep in mind that the molar weight of platinum is 195 g/mol.
Therefore,
Mole of 56.4 g of platinum = 56.4/195 = 0.2892 moles
If,
1 mole of any substance = 6.022 x [tex]10^{23}[/tex] atoms
Then,
0.2892 moles of platinum = 0.2892 x 6.022 x [tex]10^{23}[/tex] atoms = 1.7417 x [tex]10^{23}[/tex] atoms
In other words, 56.4 g of platinum will contain 1.7417 x [tex]10^{23}[/tex] atoms 1.7417 x [tex]10^{23}[/tex] atoms of the metal.
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