Question

what is the mass of 3.01×1022 molecules of N2?​

Answer 1

Answer:

3.01×1022×28/6.022×10^23

Explanation:

1.4g

l hope you like it

Answer 2

Explanation:

The number of moles will be simply the number of molecules divided by Avogadro's number, so

$\frac{3.01 \times {10}^{22} }{6.02 \times {10}^{23} } = 0.05 \: mol$

Since the molar mass of N2 is 28.0134 gm/mol

the mass of 0.05 mol of N2 will be

$= 28.0134 \times 0.05 = 1.40067 \: gm$