Question

calculate the number of moles of Nitrogen in 7 gram of nitrogen​

Answer 1

Answer:

Number of moles of Nitrogen in 7 gram of nitrogen is 1/2 mole or 0.5 mole.

Explanation:

Let the number of moles of nitrogen be n.

Let the given weight of nitrogen be w.

And

The molecular weight of nitrogen be m.

Given,.

Given weight of nitrogen (w) = 7 gram.

Molecular weight of nitrogen (m) = 14 grams

$number \: of \: moles \: of \: nitrogen \:(n) = \: \frac{given \: weight \: of \: nitrogen \: (w)}{molecular \: weight \: of \: nitrogen \: (m)}$

Number of moles of nitrogen (n) = 7/14 moles

Number of moles of nitrogen (n) = 1/2 moles or 0.5 moles.

Hence,

Number of moles of nitrogen (n) = 1/2 moles or 0.5 moles.