Stoichiometry and its Calculations
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307059 How many molecules of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) are formed when one milligram of 100% pure \({\rm{CaC}}{{\rm{O}}_{\rm{3}}}\) is treated with excess hydrochloric acid?

1 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
3 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{20}}}}\)
4 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{18}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307060 In the reaction \(4 \mathrm{~A}+2 \mathrm{~B}+3 \mathrm{C} \rightarrow \mathrm{A}_{4} \mathrm{~B}_{2} \mathrm{C}_{3}\), what will be the number of moles of product formed, starting from 1 mol of \(\mathrm{A}, 0.6 \mathrm{~mol}\) of B and 0.72 mol of C ?

1 0.25
2 0.3
3 0.24
4 2.32
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307061 In the reaction
\({\rm{4N}}{{\rm{H}}_{\rm{3}}}{\rm{(g) + 5}}{{\rm{O}}_{\rm{2}}}{\rm{(g)}} \to {\rm{4NO(g) + 6}}{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
When 1 mole of ammonia and 1 mole of \({{\rm{O}}_{\rm{2}}}\) are made to react to completion.

1 1.0 mole of \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) is produced
2 1.0 mole of NO will be produced
3 all the oxygen will be consumed
4 all the ammonia will be consumed
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307063 \({\rm{12}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{11}}{\rm{.2}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}\) are mixed and exploded. Find the composition by volume of mixture (in the order \({{\rm{H}}_{\rm{2}}}{\rm{,}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{HCl}}\)).

1 11.2, 11.2, 22.4
2 0.8, 0, 22.4
3 0.8, 0.8, 22.4
4 0.8, 11.2, 22.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307064 What quantity of copper oxide will react with 2.80 L of hydrogen at NTP?

1 79.5 g
2 2 g
3 9.9 g
4 22.4 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307059 How many molecules of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) are formed when one milligram of 100% pure \({\rm{CaC}}{{\rm{O}}_{\rm{3}}}\) is treated with excess hydrochloric acid?

1 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
3 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{20}}}}\)
4 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{18}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307060 In the reaction \(4 \mathrm{~A}+2 \mathrm{~B}+3 \mathrm{C} \rightarrow \mathrm{A}_{4} \mathrm{~B}_{2} \mathrm{C}_{3}\), what will be the number of moles of product formed, starting from 1 mol of \(\mathrm{A}, 0.6 \mathrm{~mol}\) of B and 0.72 mol of C ?

1 0.25
2 0.3
3 0.24
4 2.32
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307061 In the reaction
\({\rm{4N}}{{\rm{H}}_{\rm{3}}}{\rm{(g) + 5}}{{\rm{O}}_{\rm{2}}}{\rm{(g)}} \to {\rm{4NO(g) + 6}}{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
When 1 mole of ammonia and 1 mole of \({{\rm{O}}_{\rm{2}}}\) are made to react to completion.

1 1.0 mole of \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) is produced
2 1.0 mole of NO will be produced
3 all the oxygen will be consumed
4 all the ammonia will be consumed
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307063 \({\rm{12}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{11}}{\rm{.2}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}\) are mixed and exploded. Find the composition by volume of mixture (in the order \({{\rm{H}}_{\rm{2}}}{\rm{,}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{HCl}}\)).

1 11.2, 11.2, 22.4
2 0.8, 0, 22.4
3 0.8, 0.8, 22.4
4 0.8, 11.2, 22.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307064 What quantity of copper oxide will react with 2.80 L of hydrogen at NTP?

1 79.5 g
2 2 g
3 9.9 g
4 22.4 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307059 How many molecules of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) are formed when one milligram of 100% pure \({\rm{CaC}}{{\rm{O}}_{\rm{3}}}\) is treated with excess hydrochloric acid?

1 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
3 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{20}}}}\)
4 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{18}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307060 In the reaction \(4 \mathrm{~A}+2 \mathrm{~B}+3 \mathrm{C} \rightarrow \mathrm{A}_{4} \mathrm{~B}_{2} \mathrm{C}_{3}\), what will be the number of moles of product formed, starting from 1 mol of \(\mathrm{A}, 0.6 \mathrm{~mol}\) of B and 0.72 mol of C ?

1 0.25
2 0.3
3 0.24
4 2.32
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307061 In the reaction
\({\rm{4N}}{{\rm{H}}_{\rm{3}}}{\rm{(g) + 5}}{{\rm{O}}_{\rm{2}}}{\rm{(g)}} \to {\rm{4NO(g) + 6}}{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
When 1 mole of ammonia and 1 mole of \({{\rm{O}}_{\rm{2}}}\) are made to react to completion.

1 1.0 mole of \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) is produced
2 1.0 mole of NO will be produced
3 all the oxygen will be consumed
4 all the ammonia will be consumed
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307063 \({\rm{12}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{11}}{\rm{.2}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}\) are mixed and exploded. Find the composition by volume of mixture (in the order \({{\rm{H}}_{\rm{2}}}{\rm{,}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{HCl}}\)).

1 11.2, 11.2, 22.4
2 0.8, 0, 22.4
3 0.8, 0.8, 22.4
4 0.8, 11.2, 22.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307064 What quantity of copper oxide will react with 2.80 L of hydrogen at NTP?

1 79.5 g
2 2 g
3 9.9 g
4 22.4 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307059 How many molecules of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) are formed when one milligram of 100% pure \({\rm{CaC}}{{\rm{O}}_{\rm{3}}}\) is treated with excess hydrochloric acid?

1 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
3 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{20}}}}\)
4 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{18}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307060 In the reaction \(4 \mathrm{~A}+2 \mathrm{~B}+3 \mathrm{C} \rightarrow \mathrm{A}_{4} \mathrm{~B}_{2} \mathrm{C}_{3}\), what will be the number of moles of product formed, starting from 1 mol of \(\mathrm{A}, 0.6 \mathrm{~mol}\) of B and 0.72 mol of C ?

1 0.25
2 0.3
3 0.24
4 2.32
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307061 In the reaction
\({\rm{4N}}{{\rm{H}}_{\rm{3}}}{\rm{(g) + 5}}{{\rm{O}}_{\rm{2}}}{\rm{(g)}} \to {\rm{4NO(g) + 6}}{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
When 1 mole of ammonia and 1 mole of \({{\rm{O}}_{\rm{2}}}\) are made to react to completion.

1 1.0 mole of \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) is produced
2 1.0 mole of NO will be produced
3 all the oxygen will be consumed
4 all the ammonia will be consumed
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307063 \({\rm{12}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{11}}{\rm{.2}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}\) are mixed and exploded. Find the composition by volume of mixture (in the order \({{\rm{H}}_{\rm{2}}}{\rm{,}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{HCl}}\)).

1 11.2, 11.2, 22.4
2 0.8, 0, 22.4
3 0.8, 0.8, 22.4
4 0.8, 11.2, 22.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307064 What quantity of copper oxide will react with 2.80 L of hydrogen at NTP?

1 79.5 g
2 2 g
3 9.9 g
4 22.4 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307059 How many molecules of \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) are formed when one milligram of 100% pure \({\rm{CaC}}{{\rm{O}}_{\rm{3}}}\) is treated with excess hydrochloric acid?

1 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{23}}}}\)
2 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{21}}}}\)
3 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{20}}}}\)
4 \({\rm{6}}{\rm{.023 \times 1}}{{\rm{0}}^{{\rm{18}}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307060 In the reaction \(4 \mathrm{~A}+2 \mathrm{~B}+3 \mathrm{C} \rightarrow \mathrm{A}_{4} \mathrm{~B}_{2} \mathrm{C}_{3}\), what will be the number of moles of product formed, starting from 1 mol of \(\mathrm{A}, 0.6 \mathrm{~mol}\) of B and 0.72 mol of C ?

1 0.25
2 0.3
3 0.24
4 2.32
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307061 In the reaction
\({\rm{4N}}{{\rm{H}}_{\rm{3}}}{\rm{(g) + 5}}{{\rm{O}}_{\rm{2}}}{\rm{(g)}} \to {\rm{4NO(g) + 6}}{{\rm{H}}_{\rm{2}}}{\rm{O(l)}}\)
When 1 mole of ammonia and 1 mole of \({{\rm{O}}_{\rm{2}}}\) are made to react to completion.

1 1.0 mole of \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) is produced
2 1.0 mole of NO will be produced
3 all the oxygen will be consumed
4 all the ammonia will be consumed
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307063 \({\rm{12}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{11}}{\rm{.2}}{\mkern 1mu} {\mkern 1mu} {\rm{L}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}\) are mixed and exploded. Find the composition by volume of mixture (in the order \({{\rm{H}}_{\rm{2}}}{\rm{,}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{l}}_{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\rm{HCl}}\)).

1 11.2, 11.2, 22.4
2 0.8, 0, 22.4
3 0.8, 0.8, 22.4
4 0.8, 11.2, 22.4
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307064 What quantity of copper oxide will react with 2.80 L of hydrogen at NTP?

1 79.5 g
2 2 g
3 9.9 g
4 22.4 g