Question

Assertion : Stoichiometric coefficient are the
numbers which are put before compounds or
elements to balance the chemical equation



Reason: Chemical equation is balanced to justify
the Law of conservation of mass
​

Answer 1

Explanation:

A pump empties a swimming pool in 40 minutes at the rate of 1400 L/min. If the rate of pumping is 2000 L/min, how long does it take to empty the swimming pool?

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Answer 2

Both Assertion and Reason are correct and reason is the correct explanation of Assertion.

Explanation:

Consider a chemical reaction.

N₂ + H₂ ➝ NH₃

When we balance the equation,

N₂ + 3H₂ ➝ 2NH₃

Stoichiometric coefficients are the numbers that go behind the elements or compounds and are necessary for the chemical reaction to be balanced.

How to Determine the Gram Molecular Mass:

2(14) + 3(2) = 2(14 + 3(1))

⇒ 28 + 6 = 2(14 + 3)

⇒ 34 = 2 (17)

⇒ 34 = 34

We may conclude from the foregoing that chemical processes are balanced to justify the rule of conservation of mass.

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