8/11/2019 Gas Stoichiometry Problems

1/2

Stoichiometry Problems involving gases PV = nRT

Name:______________________ block: _________

1. Sugar cane plants convert carbon dioxide and water to sucrose and oxygen:6 CO!g" # 6 $O!l" C1$O11!s" # 6 O!g"

$ow many dm%o& oxygen gas will be produced &rom t'e reaction o& (.( dm%o& carbon dioxide at S)*+!)'ink about ,vogadro-s principle" )'is s'ould be easy !,nswer: (.( dm%

. % CO!g" # /eO%!s" 0000 /e!s" # % CO!g"

2'at volume o& carbon dioxide gas would be produced w'en 3(.( dm%o& carbon monoxide at 4 oC and(.5( atm+ !)'ink about ,vogadro-s *rinciple" !answer: 3(.( dm%

%. )'e &ollowing reaction occurs: nO!s" # 4 $Cl!a7" nCl!a7" # $O!l" # Cl!g"a" 2'at volume8 in cubic decimetres8 o& c'lorine gas will be produced i& excess 'ydroc'loric acid solution

reacts wit' 9.( grams o& manganese dioxideat S)* conditions+ !.4( liters"

b" 2'at i& t'e pressure is 3(.( k*a and t'e temperature is 4(.( oC+ ;se *< = n>) !answer: 3.( liters"

4. Solid iron!??" c'loride !/eCl" is decomposed to produce solid iron and c'lorine gas.a. 2rite a balanced c'emical e7uation &or t'e reaction.

b. $ow many moles o& iron!??" c'loride are in 6.4 grams+ !answer: (.451 moles"

c. 2'at volume o& c'lorine gas will be produced w'en 6.4 grams o& iron!??" c'loride is decomposed atSTPConditions+ !answer: 11.( liters"

d. 2'at volume o& c'lorine gas will be collected w'en 6.4 grams o& iron!??" c'loride is decomposedw'en t'e temperature is 3(.( oC and t'e pressure is (.5( atm+ ;se *< = n>) !answer: 14.3 liters"

3. @aking soda8 Na$CO%8 reacts wit' sul&uric acid to produce sodium sul&ate8 water8 and carbon dioxide.

Na$CO%!s" # $SO4!a7" NaSO4!a7" # $O!l" # CO!g"

2'at volume o& carbon dioxide gas would be produced &rom t'e reaction o& 9.4( grams o& sodiumbicarbonate at 3 oC and 1.(( atm+ !&ind moles o& sodium bicarbonate &irst" !answer: 4.95 liters"

6. Oxygen gas can be produced in small 7uantities in t'e laboratory &rom t'e t'ermal decomposition o&potassium c'lorate8 AClO%. )'e ot'er product is potassium c'loride8 ACl.

a" 2rite t'e balanced c'emical e7uation &or t'is reaction:

b" ?& 1. grams o& AClO%is 'eated8 w'at volume o& gas will be collected over water at .(oC

and %3 torr+ !,t .( oC8 t'e vapor pressure o& water is 6. torr." ;se *< = n>) !answer: (.64 liters"

Stoichiometry Problems involving gases PV = nRT

8/11/2019 Gas Stoichiometry Problems

2/2

Name:______________________ block: _________

1. Sugar cane plants convert carbon dioxide and water to sucrose and oxygen:6 CO!g" # 6 $O!l" C1$O11!s" # 6 O!g"

$ow many dm%o& oxygen gas will be produced &rom t'e reaction o& (.( dm%o& carbon dioxide at S)*+!)'ink about ,vogadro-s principle" )'is s'ould be easy !,nswer: (.( dm%

. % CO!g" # /eO%!s" 0000 /e!s" # % CO!g"

2'at volume o& carbon dioxide gas would be produced w'en 3(.( dm%o& carbon monoxide at 4 oC and(.5( atm+ !)'ink about ,vogadro-s *rinciple" !answer: 3(.( dm%

%. )'e &ollowing reaction occurs: nO!s" # 4 $Cl!a7" nCl!a7" # $O!l" # Cl!g"a" 2'at volume8 in cubic decimetres8 o& c'lorine gas will be produced i& excess 'ydroc'loric acid solutionreacts wit' 9.( grams o& manganese dioxideat S)* conditions+ !.4( liters"

b" 2'at i& t'e pressure is 3(.( k*a and t'e temperature is 4(.( oC+ ;se *< = n>) !answer: 3.( liters"

4. Solid iron!??" c'loride !/eCl" is decomposed to produce solid iron and c'lorine gas.e. 2rite a balanced c'emical e7uation &or t'e reaction.

&. $ow many moles o& iron!??" c'loride are in 6.4 grams+ !answer: (.451 moles"

g. 2'at volume o& c'lorine gas will be produced w'en 6.4 grams o& iron!??" c'loride is decomposed atSTPConditions+ !answer: 11.( liters"

'. 2'at volume o& c'lorine gas will be collected w'en 6.4 grams o& iron!??" c'loride is decomposedw'en t'e temperature is 3(.( oC and t'e pressure is (.5( atm+ ;se *< = n>) !answer: 14.3 liters"

3. @aking soda8 Na$CO%8 reacts wit' sul&uric acid to produce sodium sul&ate8 water8 and carbon dioxide.

Na$CO%!s" # $SO4!a7" NaSO4!a7" # $O!l" # CO!g"

2'at volume o& carbon dioxide gas would be produced &rom t'e reaction o& 9.4( grams o& sodiumbicarbonate at 3 oC and 1.(( atm+ !&ind moles o& sodium bicarbonate &irst" !answer: 4.95 liters"

6. Oxygen gas can be produced in small 7uantities in t'e laboratory &rom t'e t'ermal decomposition o&potassium c'lorate8 AClO%. )'e ot'er product is potassium c'loride8 ACl.

a" 2rite t'e balanced c'emical e7uation &or t'is reaction:

b" ?& 1. grams o& AClO%is 'eated8 w'at volume o& gas will be collected over water at .(oC

and %3 torr+ !,t .( oC8 t'e vapor pressure o& water is 6. torr." ;se *< = n>) !answer: (.64 liters"