II. Reaction Stoichiometry 1. Gallium chloride is formed by the reaction of 2.6 L of a 1.44 M solution of HCI according to the following equation: 2Ga + 6HCl → 2GaCl₂ + 3H₂ (a) Outline the steps necessary to determine the number of moles and mass of gallium chloride. (b) Perform the calculations outlined.
II. Reaction Stoichiometry 1. Gallium chloride is formed by the reaction of 2.6 L of a 1.44 M solution of HCI according to the following equation: 2Ga + 6HCl → 2GaCl₂ + 3H₂ (a) Outline the steps necessary to determine the number of moles and mass of gallium chloride. (b) Perform the calculations outlined.
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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![II. Reaction Stoichiometry
1. Gallium chloride is formed by the reaction of 2.6 L of a 1.44 M solution of HCI according to
the following equation:
2Ga + 6HCI→→ 2GaCl₂ + 3H₂
(a) Outline the steps necessary to determine the number of moles and mass of gallium
chloride.
(b) Perform the calculations outlined.
2. Silver is often extracted from ores such as K[Ag(CN)₂] and then recovered by the reaction
2K[Ag(CN)₂] (aq) + Zn (s) 2Ag (s) + Zn(CN)2 (aq) + 2KCN (aq)
(a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of
K[Ag(CN)₂]?
(b) What mass of Zn(CN)₂ is produced?
3. Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper
and in other applications. It is prepared by the reaction of pure sand, SiO2, with carbon at high
temperature. Carbon monoxide, CO, is the other product of this reaction. Write the balanced
equation for the reaction, and calculate how much SiO₂ is required to produce 3.00 kg of SiC.
4. Urea, CO(NH2)2, is manufactured on a large scale for use in producing urea-formaldehyde
plastics and as a fertilizer. What is the maximum mass of urea that can be manufactured from
the CO₂ produced by combustion of 1.00 x 10³ kg of carbon followed by the reaction?
CO₂ (g) + 2NH3(g) CO (NHz)z (s) + H2O (I)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffe1f1044-217d-424a-bf90-9ed21be86bca%2F38db6229-5164-4483-9e4d-a6b01f394668%2Fvtz2qzl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:II. Reaction Stoichiometry
1. Gallium chloride is formed by the reaction of 2.6 L of a 1.44 M solution of HCI according to
the following equation:
2Ga + 6HCI→→ 2GaCl₂ + 3H₂
(a) Outline the steps necessary to determine the number of moles and mass of gallium
chloride.
(b) Perform the calculations outlined.
2. Silver is often extracted from ores such as K[Ag(CN)₂] and then recovered by the reaction
2K[Ag(CN)₂] (aq) + Zn (s) 2Ag (s) + Zn(CN)2 (aq) + 2KCN (aq)
(a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of
K[Ag(CN)₂]?
(b) What mass of Zn(CN)₂ is produced?
3. Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper
and in other applications. It is prepared by the reaction of pure sand, SiO2, with carbon at high
temperature. Carbon monoxide, CO, is the other product of this reaction. Write the balanced
equation for the reaction, and calculate how much SiO₂ is required to produce 3.00 kg of SiC.
4. Urea, CO(NH2)2, is manufactured on a large scale for use in producing urea-formaldehyde
plastics and as a fertilizer. What is the maximum mass of urea that can be manufactured from
the CO₂ produced by combustion of 1.00 x 10³ kg of carbon followed by the reaction?
CO₂ (g) + 2NH3(g) CO (NHz)z (s) + H2O (I)
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