Question

convert into mole: 28g of nitrogen atoms

Answer 1

$no. \: of \: moles \: = \frac{given \: mass}{molar \: mas} \\ here \: it \: is \: said \: that \: it \: is \: atom \: so \: we \: take \: molar \: mass = 14u$
$now \\ moles = \frac{28}{14} \\ moles \: = 2$
$\boxed{\red{\huge{2\:moles}}}$

Answer 2

The number of moles of nitrogen element is 2 moles

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

We are given:

Given mass of nitrogen element = 28 g

Molar mass of nitrogen element = 14 g/mol

Putting values in above equation, we get:

$\text{Moles of nitrogen element}=\frac{28g}{14g/mol}\\\\\text{Moles of nitrogen element}=2moles$

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