How many moles are there in 17.5g of mercury (i) nitride?

Moles of mercury (I) nitride are 0.014 mol.

Explanation:

Given data:

Number of moles of  mercury (I) nitride = ?

Mass of mercury (I) nitride = 17.5 g

Solution:

Molar mass of mercury (I) nitride:

(Hg₂)₃N₂   = (2×200.59)×3 + 14.0067 × 2

(Hg₂)₃N₂   = 1203.54 + 28.0134

 (Hg₂)₃N₂   = 1231.5534 g/mol

Formula:

Number moles = mass / molar mass

Number of moles = 17.5 g / 1231.5534  g /mol

Number of moles = 0.014 mol