Question

if 20% nitrogen is present in a compound its molecular weight will be

Answer 1

Answer:

So, If 20 grams of nitrogen is present in 100 gram of compound. Then, 14 gram of nitrogen will be present in = of compound. Hence, the minimum molecular mass of the compound is 70 grams.

Explanation:

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Answer 2

Answer: The minimum molecular mass of the compound is 70 grams.

Explanation:

We are given:

A compound having 20 % of nitrogen.

This means that 20 grams of nitrogen will be present in 100 gram of compound.

We know that:

Mass of 1 nitrogen atom = 14 gram

To calculate the minimum molecular weight of compound, there must be 1 nitrogen present. So,

If 20 grams of nitrogen is present in 100 gram of compound.

Then, 14 gram of nitrogen will be present in = \frac{100g}{20g}\times 14g=70g

20g

100g

×14g=70g of compound.

Hence, the minimum molecular mass of the compound is 70 grams.

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