Question

What is the volume of O2 gas collected at 22°C and 728 mmHg would be produced by the decomposition of 8.15 g of KClO3? 2 KClO3 (s) ? 2 KCl (s) + 3 O2 (g) This calculation is a stoichiometry problem followed by gas laws problem. You'll need to use the same mathematical logic in lab, so it is best to take the time to understand it now. For stoichiometry help check section 10.10, page 444 in your text. Then, use the combined gas law. P1V1 / T1 = P2V2 / T2 Assume that the values of pressure, volume, and temperature (in Kelvin), obtained from the experiment are P1, V1, and T1, respectively. Then, V2 would be the volume of O2 gas at STP, P2 is 1 atm and T2 is 273 K. 1.48 L 1.68 L 2.52 L 2.23 L

          What is the volume of O2 gas collected at 22°C and 728 mmHg would be produced by the decomposition of 8.15 g of KClO3?

2 KClO3 (s) ? 2 KCl (s) + 3 O2 (g)

This calculation is a stoichiometry problem followed by gas laws problem. You'll need to use the same mathematical logic in lab, so it is best to take the time to understand it now. For stoichiometry help check section 10.10, page 444 in your text. Then, use the combined gas law.

P1V1 / T1 = P2V2 / T2

Assume that the values of pressure, volume, and temperature (in Kelvin), obtained from the experiment are P1, V1, and T1, respectively. Then, V2 would be the volume of O2 gas at STP, P2 is 1 atm and T2 is 273 K.

1.48 L
1.68 L
2.52 L
2.23 L

What is the volume of O2 gas collected at 22°C and 728 mmHg would be produced by the decomposition of 8.15 g of KClO3?

2 KClO3 (s) ? 2 KCl (s) + 3 O2 (g)

This calculation is a stoichiometry problem followed by gas laws problem. You'll need to use the same mathematical logic in lab, so it is best to take the time to understand it now. For stoichiometry help check section 10.10, page 444 in your text. Then, use the combined gas law.

P1V1 / T1 = P2V2 / T2

Assume that the values of pressure, volume, and temperature (in Kelvin), obtained from the experiment are P1, V1, and T1, respectively. Then, V2 would be the volume of O2 gas at STP, P2 is 1 atm and T2 is 273 K.

1.48 L
1.68 L
2.52 L
2.23 L

Added by Mario H.

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