Mass of Oxygen is: 0.784gm
Potassium chlorate is KClO3 and the decomposition looks like this...
2KClO3 ==> 2KCl + 3O2
4.50 g KClO3 x 1 mole/122.55 g = 0.0367 moles
0.0367 moles KClO3 x 3 moles O2/2 moles KClO3 = 0.0245 moles O2 (see mole ratio in balanced equation)
mass of O2 = 0.0245 moles O2 x 32 g/mole = 0.784 g O2 formed
A mixture of CO2 and Kr weighs 37.0 g and exerts a pressure of 0.737 atm in its container. is expensive, you wish to recover it from the mixture.
in the reaction 2K C lO3 2K C l + 3O2 K C lO3? This demonstrates that 3 moles of oxygen gas are created for every 2 moles of degraded potassium chlorate.
High pressure liquid CO 2 is produced by compressing the gaseous CO 2 in multistage compressors to pressures in the neighbourhood of 69 bar (1000,76 psi) pressure, then cooling it to around 18 °C (64,4 °F). It is customarily filled into specially constructed steel cylinders.
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