Question

on complete thermal decomposition of 200g of mercuric oxide, 185.2 g of mercury is produced. the weight of o2 liberated

Answer 1

Answer:-

Solution:- If complete decomposition is taking place then we could easily solve the problem using law of mass conservation.

mass of reactant = sum of the masses of products

mass of mercuric oxide = mass of mercury + mass of oxygen

From given data, 200 g of mercuric oxide gives 185.2 g of mercury on complete thermal decomposition. Let's plug in the values in the formula:

200 g = 185.2 g + mass of oxygen

mass of oxygen = 200 g - 185.2 g

mass of oxygen = 14.8 g

So, 14.8 grams of oxygen gas are liberated on the decomposition of 200 g of mercuric oxide.