Question

Hey please give me some questions on law conversion of mass with solutions please it's urgent

Answer 1

Explanation:

In a chemical reaction 150 g Baking soda mixture containing sodium bicarbonate and vinegar on heating gives 87 g of carbon dioxide gas. What mass of solid residue will left in food?

Solution:

According to law of conservation of mass,

Total mass of reactants = Total mass of products.

 

Here, baking soda mixture (reactant) on heating gives solid residue and carbon dioxide ( products).Here baking soda mixture (reactant) on heating gives solid residue and carbon dioxide ( products).

MBaking soda = MSolid residue + MCarbon dioxide

Hence,  the mass of solid residue is 150g – 87g = 63g.