Question

What is the mass in grams of 2.0 moles of NO2

Answer 1

Molar mass NO₂ = 46.0 g/mol

1 mole -------- 46.0 g
2.0 moles ----- ?

Mass (NO₂) = 2.0 x 46.0 / 1

=> 92.0 g

hope this helps!

Answer 2

Answer:

The mass of 2 moles of NO₂ is 92 grams.

Explanation:

Given that,

Number of moles, n = 2 moles

We need to find the mass of 2 moles of NO₂. We know that the number of moles is given by the formula as :

$n=\dfrac{m}{M}$

m is the given mass

M is the molar mass of NO₂, $M=14+16\times 2=46\ g$

$m=n\times M\\\\m=2\times 46\\\\m=92\ g$

So, the mass of 2 moles of NO₂ is 92 grams. Hence, this is the required solution.