Calculate the amount of oxygen gas and potassium chloride formed during the decomposition of 49g of potassium chlorate. (Atomic mass of potassium = 39; oxygen = 16 and chlorine = 35.4)
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Answer:- 19.2 g oxygen and 29.8 g potassium chloride are formed.
Solution:- Decomposition of potassium chlorate takes place as:
Molar mass of potassium chlorate is 122.55 gram per mol.
molar mass of oxygen is 32 gram per mol and molar mass of potassium chloride is 74.55 gram per mol.
Now we can calculate the grams of both the products using dimensional analysis as:
calculations for grams of oxygen:
= 19.2 g of oxygen
Calculations for grams of potassium chloride:
= 29.8 g KCl
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