Stoichiometry and its Calculations
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307004 A silver coin weighing 11.34 g was dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present as \({\rm{AgN}}{{\rm{O}}_{\rm{3}}}\)) was precipitated as silver chloride. The weight of the precipitated silver chloride 14.35 g. Calculate the percentage of silver in the coin

1 \(4.85\% \)
2 \(95.2\% \)
3 \(90\% \)
4 \(80\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307005 How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl?

1 0.333
2 0.011
3 0.029
4 0.044
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307006 What is the volume of water consumed during acid hydrolysis of 1.368 kg of sucrose? (Given: molar masses of sucrose = 342, water = 18, density of water \({\rm{ = 1g/c}}{{\rm{m}}^{\rm{3}}}\))

1 \({\rm{0}}{\rm{.072}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
2 \({\rm{0}}{\rm{.720}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
3 \({\rm{0}}{\rm{.18}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.018}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307007 \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) gas is slowly passed through an aqueous suspension containing 12 g \({\rm{CaS}}{{\rm{O}}_{\rm{3}}}\) till the milkiness just disappears. What amount of \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) would be required?

1 12.8 g
2 6.4 g
3 0.2 mole
4 1 mole
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307004 A silver coin weighing 11.34 g was dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present as \({\rm{AgN}}{{\rm{O}}_{\rm{3}}}\)) was precipitated as silver chloride. The weight of the precipitated silver chloride 14.35 g. Calculate the percentage of silver in the coin

1 \(4.85\% \)
2 \(95.2\% \)
3 \(90\% \)
4 \(80\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307005 How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl?

1 0.333
2 0.011
3 0.029
4 0.044
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307006 What is the volume of water consumed during acid hydrolysis of 1.368 kg of sucrose? (Given: molar masses of sucrose = 342, water = 18, density of water \({\rm{ = 1g/c}}{{\rm{m}}^{\rm{3}}}\))

1 \({\rm{0}}{\rm{.072}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
2 \({\rm{0}}{\rm{.720}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
3 \({\rm{0}}{\rm{.18}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.018}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307007 \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) gas is slowly passed through an aqueous suspension containing 12 g \({\rm{CaS}}{{\rm{O}}_{\rm{3}}}\) till the milkiness just disappears. What amount of \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) would be required?

1 12.8 g
2 6.4 g
3 0.2 mole
4 1 mole
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307004 A silver coin weighing 11.34 g was dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present as \({\rm{AgN}}{{\rm{O}}_{\rm{3}}}\)) was precipitated as silver chloride. The weight of the precipitated silver chloride 14.35 g. Calculate the percentage of silver in the coin

1 \(4.85\% \)
2 \(95.2\% \)
3 \(90\% \)
4 \(80\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307005 How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl?

1 0.333
2 0.011
3 0.029
4 0.044
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307006 What is the volume of water consumed during acid hydrolysis of 1.368 kg of sucrose? (Given: molar masses of sucrose = 342, water = 18, density of water \({\rm{ = 1g/c}}{{\rm{m}}^{\rm{3}}}\))

1 \({\rm{0}}{\rm{.072}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
2 \({\rm{0}}{\rm{.720}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
3 \({\rm{0}}{\rm{.18}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.018}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307007 \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) gas is slowly passed through an aqueous suspension containing 12 g \({\rm{CaS}}{{\rm{O}}_{\rm{3}}}\) till the milkiness just disappears. What amount of \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) would be required?

1 12.8 g
2 6.4 g
3 0.2 mole
4 1 mole
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307004 A silver coin weighing 11.34 g was dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present as \({\rm{AgN}}{{\rm{O}}_{\rm{3}}}\)) was precipitated as silver chloride. The weight of the precipitated silver chloride 14.35 g. Calculate the percentage of silver in the coin

1 \(4.85\% \)
2 \(95.2\% \)
3 \(90\% \)
4 \(80\% \)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307005 How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl?

1 0.333
2 0.011
3 0.029
4 0.044
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307006 What is the volume of water consumed during acid hydrolysis of 1.368 kg of sucrose? (Given: molar masses of sucrose = 342, water = 18, density of water \({\rm{ = 1g/c}}{{\rm{m}}^{\rm{3}}}\))

1 \({\rm{0}}{\rm{.072}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
2 \({\rm{0}}{\rm{.720}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
3 \({\rm{0}}{\rm{.18}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
4 \({\rm{0}}{\rm{.018}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\)
CHXI01:SOME BASIC CONCEPTS OF CHEMISTRY

307007 \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) gas is slowly passed through an aqueous suspension containing 12 g \({\rm{CaS}}{{\rm{O}}_{\rm{3}}}\) till the milkiness just disappears. What amount of \({\rm{S}}{{\rm{O}}_{\rm{2}}}\) would be required?

1 12.8 g
2 6.4 g
3 0.2 mole
4 1 mole