Stoichiometry and its Calculations
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306995 If a rocket runs on a fuel \({\rm{(}}{{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{30}}}}{\rm{)}}\) and liquid oxygen, the weight of oxygen required and \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) released for every litre of fuel respectively are: (Given: density of the fuel is 0.756 g/mL)

1 1188 g and 1296 g
2 2376 g and 2592 g
3 2592 g and 2376 g
4 3429 g and 3142 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306996 8 litre of \({{\rm{H}}_{\rm{2}}}\) and 6 litre of \({\rm{C}}{{\rm{l}}_{\rm{2}}}\) are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Assume pressure and temperature remains constant throughout the course of reaction

1 7 litre
2 14 litre
3 2 litre
4 10 litre
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307003 What weight of \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\) is needed to convert 62 gm of \({{\rm{P}}_{\rm{4}}}{\mkern 1mu} {\mkern 1mu} {\rm{in}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) in the reaction ?
\({{\rm{P}}_{\rm{4}}}{\rm{ + HN}}{{\rm{O}}_{\rm{3}}} \to {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + N}}{{\rm{O}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 63 gm
2 630 gm
3 315 gm
4 126 gm
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306997 446 g of PbO, 46 g of \({\rm{N}}{{\rm{O}}_{\rm{2}}}\) and 16 g of \({{\rm{O}}_{\rm{2}}}\)
are allowed to react according to the equation \(\mathrm{PbO}+2 \mathrm{NO}_{2}+\frac{1}{2} \mathrm{O}_{2} \rightarrow \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\). The amount of \(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\) that can be produced is
(At. wt. of \(\mathrm{Pb}=207\) )

1 331 g
2 662 g
3 165.5 g
4 132.5 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306998 What amount of oxygen is used at S.T.P. to obtain \(\mathrm{9 \mathrm{~g}}\) water from sufficient amount of hydrogen gas?

1 \(\mathrm{5.6 \mathrm{dm}^{3}}\)
2 \(\mathrm{22.4 \mathrm{dm}^{3}}\)
3 \(\mathrm{16.8 \mathrm{dm}^{3}}\)
4 \(\mathrm{11.2 \mathrm{dm}^{3}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306995 If a rocket runs on a fuel \({\rm{(}}{{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{30}}}}{\rm{)}}\) and liquid oxygen, the weight of oxygen required and \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) released for every litre of fuel respectively are: (Given: density of the fuel is 0.756 g/mL)

1 1188 g and 1296 g
2 2376 g and 2592 g
3 2592 g and 2376 g
4 3429 g and 3142 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306996 8 litre of \({{\rm{H}}_{\rm{2}}}\) and 6 litre of \({\rm{C}}{{\rm{l}}_{\rm{2}}}\) are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Assume pressure and temperature remains constant throughout the course of reaction

1 7 litre
2 14 litre
3 2 litre
4 10 litre
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307003 What weight of \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\) is needed to convert 62 gm of \({{\rm{P}}_{\rm{4}}}{\mkern 1mu} {\mkern 1mu} {\rm{in}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) in the reaction ?
\({{\rm{P}}_{\rm{4}}}{\rm{ + HN}}{{\rm{O}}_{\rm{3}}} \to {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + N}}{{\rm{O}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 63 gm
2 630 gm
3 315 gm
4 126 gm
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306997 446 g of PbO, 46 g of \({\rm{N}}{{\rm{O}}_{\rm{2}}}\) and 16 g of \({{\rm{O}}_{\rm{2}}}\)
are allowed to react according to the equation \(\mathrm{PbO}+2 \mathrm{NO}_{2}+\frac{1}{2} \mathrm{O}_{2} \rightarrow \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\). The amount of \(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\) that can be produced is
(At. wt. of \(\mathrm{Pb}=207\) )

1 331 g
2 662 g
3 165.5 g
4 132.5 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306998 What amount of oxygen is used at S.T.P. to obtain \(\mathrm{9 \mathrm{~g}}\) water from sufficient amount of hydrogen gas?

1 \(\mathrm{5.6 \mathrm{dm}^{3}}\)
2 \(\mathrm{22.4 \mathrm{dm}^{3}}\)
3 \(\mathrm{16.8 \mathrm{dm}^{3}}\)
4 \(\mathrm{11.2 \mathrm{dm}^{3}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306995 If a rocket runs on a fuel \({\rm{(}}{{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{30}}}}{\rm{)}}\) and liquid oxygen, the weight of oxygen required and \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) released for every litre of fuel respectively are: (Given: density of the fuel is 0.756 g/mL)

1 1188 g and 1296 g
2 2376 g and 2592 g
3 2592 g and 2376 g
4 3429 g and 3142 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306996 8 litre of \({{\rm{H}}_{\rm{2}}}\) and 6 litre of \({\rm{C}}{{\rm{l}}_{\rm{2}}}\) are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Assume pressure and temperature remains constant throughout the course of reaction

1 7 litre
2 14 litre
3 2 litre
4 10 litre
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307003 What weight of \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\) is needed to convert 62 gm of \({{\rm{P}}_{\rm{4}}}{\mkern 1mu} {\mkern 1mu} {\rm{in}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) in the reaction ?
\({{\rm{P}}_{\rm{4}}}{\rm{ + HN}}{{\rm{O}}_{\rm{3}}} \to {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + N}}{{\rm{O}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 63 gm
2 630 gm
3 315 gm
4 126 gm
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306997 446 g of PbO, 46 g of \({\rm{N}}{{\rm{O}}_{\rm{2}}}\) and 16 g of \({{\rm{O}}_{\rm{2}}}\)
are allowed to react according to the equation \(\mathrm{PbO}+2 \mathrm{NO}_{2}+\frac{1}{2} \mathrm{O}_{2} \rightarrow \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\). The amount of \(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\) that can be produced is
(At. wt. of \(\mathrm{Pb}=207\) )

1 331 g
2 662 g
3 165.5 g
4 132.5 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306998 What amount of oxygen is used at S.T.P. to obtain \(\mathrm{9 \mathrm{~g}}\) water from sufficient amount of hydrogen gas?

1 \(\mathrm{5.6 \mathrm{dm}^{3}}\)
2 \(\mathrm{22.4 \mathrm{dm}^{3}}\)
3 \(\mathrm{16.8 \mathrm{dm}^{3}}\)
4 \(\mathrm{11.2 \mathrm{dm}^{3}}\)
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CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306995 If a rocket runs on a fuel \({\rm{(}}{{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{30}}}}{\rm{)}}\) and liquid oxygen, the weight of oxygen required and \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) released for every litre of fuel respectively are: (Given: density of the fuel is 0.756 g/mL)

1 1188 g and 1296 g
2 2376 g and 2592 g
3 2592 g and 2376 g
4 3429 g and 3142 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306996 8 litre of \({{\rm{H}}_{\rm{2}}}\) and 6 litre of \({\rm{C}}{{\rm{l}}_{\rm{2}}}\) are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Assume pressure and temperature remains constant throughout the course of reaction

1 7 litre
2 14 litre
3 2 litre
4 10 litre
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307003 What weight of \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\) is needed to convert 62 gm of \({{\rm{P}}_{\rm{4}}}{\mkern 1mu} {\mkern 1mu} {\rm{in}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) in the reaction ?
\({{\rm{P}}_{\rm{4}}}{\rm{ + HN}}{{\rm{O}}_{\rm{3}}} \to {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + N}}{{\rm{O}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 63 gm
2 630 gm
3 315 gm
4 126 gm
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306997 446 g of PbO, 46 g of \({\rm{N}}{{\rm{O}}_{\rm{2}}}\) and 16 g of \({{\rm{O}}_{\rm{2}}}\)
are allowed to react according to the equation \(\mathrm{PbO}+2 \mathrm{NO}_{2}+\frac{1}{2} \mathrm{O}_{2} \rightarrow \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\). The amount of \(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\) that can be produced is
(At. wt. of \(\mathrm{Pb}=207\) )

1 331 g
2 662 g
3 165.5 g
4 132.5 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306998 What amount of oxygen is used at S.T.P. to obtain \(\mathrm{9 \mathrm{~g}}\) water from sufficient amount of hydrogen gas?

1 \(\mathrm{5.6 \mathrm{dm}^{3}}\)
2 \(\mathrm{22.4 \mathrm{dm}^{3}}\)
3 \(\mathrm{16.8 \mathrm{dm}^{3}}\)
4 \(\mathrm{11.2 \mathrm{dm}^{3}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306995 If a rocket runs on a fuel \({\rm{(}}{{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{30}}}}{\rm{)}}\) and liquid oxygen, the weight of oxygen required and \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) released for every litre of fuel respectively are: (Given: density of the fuel is 0.756 g/mL)

1 1188 g and 1296 g
2 2376 g and 2592 g
3 2592 g and 2376 g
4 3429 g and 3142 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306996 8 litre of \({{\rm{H}}_{\rm{2}}}\) and 6 litre of \({\rm{C}}{{\rm{l}}_{\rm{2}}}\) are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Assume pressure and temperature remains constant throughout the course of reaction

1 7 litre
2 14 litre
3 2 litre
4 10 litre
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307003 What weight of \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\) is needed to convert 62 gm of \({{\rm{P}}_{\rm{4}}}{\mkern 1mu} {\mkern 1mu} {\rm{in}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}\) in the reaction ?
\({{\rm{P}}_{\rm{4}}}{\rm{ + HN}}{{\rm{O}}_{\rm{3}}} \to {{\rm{H}}_{\rm{3}}}{\rm{P}}{{\rm{O}}_{\rm{4}}}{\rm{ + N}}{{\rm{O}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\)

1 63 gm
2 630 gm
3 315 gm
4 126 gm
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306997 446 g of PbO, 46 g of \({\rm{N}}{{\rm{O}}_{\rm{2}}}\) and 16 g of \({{\rm{O}}_{\rm{2}}}\)
are allowed to react according to the equation \(\mathrm{PbO}+2 \mathrm{NO}_{2}+\frac{1}{2} \mathrm{O}_{2} \rightarrow \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\). The amount of \(\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}\) that can be produced is
(At. wt. of \(\mathrm{Pb}=207\) )

1 331 g
2 662 g
3 165.5 g
4 132.5 g
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

306998 What amount of oxygen is used at S.T.P. to obtain \(\mathrm{9 \mathrm{~g}}\) water from sufficient amount of hydrogen gas?

1 \(\mathrm{5.6 \mathrm{dm}^{3}}\)
2 \(\mathrm{22.4 \mathrm{dm}^{3}}\)
3 \(\mathrm{16.8 \mathrm{dm}^{3}}\)
4 \(\mathrm{11.2 \mathrm{dm}^{3}}\)