Question 1

In the reaction given below, how many grams of sodium metal are consumed if 2.02 g of hydrogen gas are produced?

Accepted Answer

A)  92.0 g 
B)  5.75 g 
C)  11.5 g 
D)  23.0 g 
E)  46.0 g 
A)  92.0 g 
B)  5.75 g 
C)  11.5 g 
D)  23.0 g 
E)  46.0 g

Question 2

How many moles of H2O are formed from the complete combustion of 45.0 g of methanol, CH3OH?

Accepted Answer

A)  0.711 mol 
B)  1.41 mol 
C)  1.42 mol 
D)  2.81 mol 
E)  50.6 mol 
A)  0.711 mol 
B)  1.41 mol 
C)  1.42 mol 
D)  2.81 mol 
E)  50.6 mol

Question 3

Match between columns
                        Premises: Mg + TiClS1U1B14S1U1B0 → Ti + MgClS1U1B12S1U1B0
reactant which runs out first
substance dissolved in water
CS1U1B16S1U1B0HS1U1B112S1U1B0 + OS1U1B12 S1U1B0→ COS1U1B12S1U1B0 + HS1U1B12S1U1B0O
maximum possible quantity of product
gives the relative amounts of products and reactants
HS1U1B12S1U1B0O → HS1U1B12S1U1B0 + OS1U1B12S1U1B0
indicates the efficiency of a chemical reaction
MgClS1U1B12S1U1B0 + AgNOS1U1B13S1U1B0 → Mg(NOS1U1B13S1U1B0)S1U1B12S1U1B0 + AgCl
NS1U1B12S1U1B0 + HS1U1B12S1U1B0 → NHS1U1B13S1U1B0

Accepted Answer

The Answer of  limiting reactant  and  decomposition is...

Question 4

If 110.0 g of iron reacts with 64.0 g of oxygen, what is the theoretical yield of Fe2O3?

Accepted Answer

A)  157.3 g 
B)  212.9 g 
C)  314.9 g 
D)  319.4 g 
E)  629.2 g 
A)  157.3 g 
B)  212.9 g 
C)  314.9 g 
D)  319.4 g 
E)  629.2 g

Question 5

In the reaction given below, for every two molecules of aluminum oxide consumed, how many molecules of oxygen are produced?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  6 
E)  9 
A)  1 
B)  2 
C)  3 
D)  6 
E)  9

In the reaction given below, how many grams of sodium metal are consumed if 2.02 g of hydrogen gas are produced?

How many moles of H₂O are formed from the complete combustion of 45.0 g of methanol, CH₃OH?

If 110.0 g of iron reacts with 64.0 g of oxygen, what is the theoretical yield of Fe₂O₃?

In the reaction given below, for every two molecules of aluminum oxide consumed, how many molecules of oxygen are produced?

The Nature of Chemistry

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Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

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Exam 4: Quantities of Reactants and Products

In the reaction given below, how many grams of sodium metal are consumed if 2.02 g of hydrogen gas are produced?

How many moles of H2O are formed from the complete combustion of 45.0 g of methanol, CH3OH?

If 110.0 g of iron reacts with 64.0 g of oxygen, what is the theoretical yield of Fe2O3?

In the reaction given below, for every two molecules of aluminum oxide consumed, how many molecules of oxygen are produced?

The Nature of Chemistry

Atoms and Elements

Chemical Compounds

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

How many moles of H₂O are formed from the complete combustion of 45.0 g of methanol, CH₃OH?

If 110.0 g of iron reacts with 64.0 g of oxygen, what is the theoretical yield of Fe₂O₃?