Question

4 grams of hydrogen reacts with
some oxygen to make 36 grams of
water. Figure out how much oxygen
must have been used by applying the
lay of conservation of mass?
Ans with steps

Answer 1

Answer:

According to The Law of conservation of mass states that During any chemical change mass can neither be created nor destroyed. OR The total mass in a chemical reaction remains constant.

Explanation:

Now: According to The Law of Conservation Of Mass -

Hydrogen+Oxygen = Water

Let oxygen be-x

hydrogen+x = water

(Since Hydrogen= 4g and water= 36g)

THEREFORE - 4g +X = 36g

x =36-4

x= 32g

Hence, weight of oxygen= 32g...

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