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Wewaii [24]
3 years ago
7

a solid mass of 25 g is mixed with 60 g of a solution. a chemical reaction takes place and a gas is produced. the final mass of

the mixture is 75 g. what is the mass of the gas released?
Chemistry
2 answers:
Goshia [24]3 years ago
6 0

<u>Answer:</u> The mass of gas released is 10 grams.

<u>Explanation:</u>

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The chemical equation for the reaction of solid with solution follows:

\text{Solid + Solution}\rightarrow \text{Mixture + Gas}

Let the mass of gas be 'x' grams

We are given:

Mass of solid = 25 grams

Mass of solution = 60 grams

Mass of mixture = 75 grams

Total mass on reactant side = 25 + 60 = 85

Total mass on product side = 75 + x

So, by applying law of conservation of mass, we get:

75+x=85\\\\x=(85-75)=10g

Hence, the mass of gas released is 10 grams.

strojnjashka [21]3 years ago
5 0

Law of conservation of mass

Solid mass(25g)+ solution(60g)---> gas(x)

Total mass of reactants = total mass of products

25 + 60=75+x

85=75+x

10=x

10g

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