Oxygen gas is formed by the decomposition of potassium chlorate at high temperatures according to the reaction 2 KC10, (s) → 2 KC1(s)+3 0,(g). Suppose 1.23 g KCIO; is placed in a container connected to an open-end mercury manometer on a day when atmospheric pressure is 1.00 atm. Once the reaction is complete, the height of the mercury column in the U-tube on the side of the reaction container rises by 172 mmHg. What is the pressure of O2 gas produced by the reaction? 1348 torr 22.9 kPa d. 0.774 atm a. 36.7 in Hg b. 0.559 bar e. c.

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Oxygen gas is formed by the decomposition of potassium chlorate at high temperatures according to the
reaction 2 KC10, (s) → 2 KC1(s)+3 0,(g). Suppose 1.23 g KCIO; is placed in a container connected to
an open-end mercury manometer on a day when atmospheric pressure is 1.00 atm. Once the reaction is
complete, the height of the mercury column in the U-tube on the side of the reaction container rises by
172 mmHg. What is the pressure of O2 gas produced by the reaction?
1348 torr
22.9 kPa
d. 0.774 atm
a.
36.7 in Hg
b.
0.559 bar
e.
c.
Transcribed Image Text:Oxygen gas is formed by the decomposition of potassium chlorate at high temperatures according to the reaction 2 KC10, (s) → 2 KC1(s)+3 0,(g). Suppose 1.23 g KCIO; is placed in a container connected to an open-end mercury manometer on a day when atmospheric pressure is 1.00 atm. Once the reaction is complete, the height of the mercury column in the U-tube on the side of the reaction container rises by 172 mmHg. What is the pressure of O2 gas produced by the reaction? 1348 torr 22.9 kPa d. 0.774 atm a. 36.7 in Hg b. 0.559 bar e. c.
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