Problem 1
Consider the general chemical equation \(A+2 B \longrightarrow 3 C+2 D\) (a) How many moles of \(\mathrm{C}\) are produced from \(1 \mathrm{~mol}\) of \(\mathrm{A}\) ? (b) How many liters of gas B must react to give \(2 \mathrm{~L}\) of gas \(\mathrm{D}\) at the same temperature and pressure?
Problem 2
Consider the general chemical equation \(2 \mathrm{~A}+3 \mathrm{~B} \longrightarrow 2 \mathrm{C}+\mathrm{D}\) (a) How many moles of \(\mathrm{C}\) are produced from \(2 \mathrm{~mol}\) of \(\mathrm{A} ?\) (b) How many liters of gas \(\mathrm{B}\) must react to give \(1 \mathrm{~L}\) of gas \(\mathrm{D}\)
Problem 6
Verify the conservation of mass law using the molar masses of reactants and products for each substance in the following balanced equations: (a) \(\mathrm{P}_{4}(\mathrm{~s})+3 \mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{P}_{2} \mathrm{O}_{3}(\mathrm{~s})\) (b) \(\mathrm{P}_{4}(\mathrm{~s})+5 \mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{P}_{2} \mathrm{O}_{5}(\mathrm{~s})\)
Problem 7
Given the decomposition of hydrogen peroxide, calculate the moles of oxygen gas produced from \(5.00 \mathrm{~mol}\) of \(\mathrm{H}_{2} \mathrm{O}_{2}\). $$2 \mathrm{H}_{2} \mathrm{O}_{2}(l) \longrightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)+\mathrm{O}_{2}(g)$$
Problem 8
Given the reaction of hydrogen and chlorine gases, calculate the moles of hydrogen that react to produce \(5.00 \mathrm{~mol}\) of \(\mathrm{HCl}\). $$\mathrm{H}_{2}(g)+\mathrm{Cl}_{2}(g) \longrightarrow 2 \mathrm{HCl}(g)$$
Problem 13
Classify the type of stoichiometry problem: How many liters of carbon dioxide gas are produced from the decomposition of \(25.0 \mathrm{~g} \mathrm{NaHCO}_{3} ?\)
Problem 18
Classify the type of stoichiometry problem: How many grams of potassium chlorate must decompose to give \(1.00 \mathrm{~g}\) of \(\mathrm{KCl}\) ?
Problem 19
What is the mass of silver that can be prepared from \(1.00 \mathrm{~g}\) of copper metal? $$\mathrm{Cu}(s)+2 \mathrm{AgNO}_{3}(a q) \longrightarrow \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}(aq)+2 \mathrm{Ag}(s)$$
Problem 23
Given the balanced equation, calculate the mass of product that can be prepared from \(3.45 \mathrm{~g}\) of bismuth metal. $$2 \mathrm{Bi}(s)+3 \mathrm{Cl}_{2}(g) \longrightarrow 2 \mathrm{BiCl}_{3}(s)$$
Problem 29
How many milliliters of carbon dioxide gas at STP are produced from the decomposition of \(1.59 \mathrm{~g}\) of lithium hydrogen carbonate? $$2 \mathrm{LiHCO}_{3}(s) \longrightarrow \mathrm{Li}_{2} \mathrm{CO}_{3}(s)+\mathrm{H}_{2} \mathrm{O(l)+\mathrm{CO}_{2}(g)$$
