Question

what will be the mass of 4 mole ammonia

Answer 1

4mole ammonia has mass of 68g.

Given,

4Mole of ammonia.

To Find,

The mass of 4mole ammonia.

Solution,

NH₃ is the formula denoting ammonia.

Need to find out the mass of 4mole ammonia.

First, need to find the molecular mass of ammonia NH₃.

N has an atomic mass of 14 and H has an atomic mass of 1.

Here, 1 N and 3H

14 + 1 + 1 + 1 = 17g will be the molecular mass of ammonia.

i.e. one mole of ammonia mass is 17g.

so, 4mole ammonia mass = 4 × 17

68g.

Hence, 68g is the mass of 4mole ammonia.

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Answer 2

Answer:

The mass of 4 mole of ammonia is 68

Explanation:

The chemical formula for ammonia is NH3. Here the molecular mass of nitrogen is 14 and molecular mass of hydrogen is 1. Hence there in 1 mole of ammonia there is 1 molecule of nitrogen and 3 molecule of hydrogen hence the molecular mass is $14+( 1*3 )= 17$ and for 4 moles of ammonia the molecular mass becomes $17*4=68$.