. In a reaction, 25 grams of reactant AB breaks down into 10 grams of product A and an unknown amount of product B. Using the law of conservation of mass, how much does product B weigh?
Answers
Solution :
we need to find out the weight of product B
- AB --> A + B
AB = 25 g
A = 10g
B = ??
According to law of conservation of mass , mass of reactant is equal to the mass of product so formed.
So,
Mass of Reactant = mass of product
AB = A + B
25 g = 10g + B
(25 - 10) g = B
15 g = B
Hence,
- Weight of product B is 15 grams
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About Above Reaction :
As In above reaction AB is reactant and AB reactant splitts into two products, This reaction is called Decomposition reaction .
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Answer:
Given A= 10g , AB= 25 g , we have to find B,
reaction is
AB --> A+ B
By Law of conservation of mass in a reaction,
we get B= 25- 10
B= 15 g
Explanation:
Above reaction is a decomposition reaction in which products are obtained from breakdown of reactant,
we solved it by law of mass conservation,
which says no mass can be produced or destroyed during a reaction.