Question

What mass of so2 contains no. Of molecules. Which one is present in 85 g nh3

Answer 1

Answer:

320 g of $SO_2$ contains same number of molecule as that in 85 g of $NH_3$.

Explanation:

Mass of $SO_2$ with same number of molecules in 85 g of $NH_3$

Mass of $NH_3=85 g$

Moles of $NH_3=\frac{85 g}{17 g/mol}=5 mol$

Molecules in 5 mole of $NH_3=5 \times N_A$

Number of molecules of $SO_2=5\times N_A$

Moles of $SO_2=\frac{5\times N_A}{N_A}=5 moles$

Mass of 5 moles of $SO_2=5\times 64 g/mol=320 g$

320 g of $SO_2$ contains same number of molecule as that in 85 g of $NH_3$.