Question

Calculate the relative molecular mass of ammonium chloroplatinate

Answer 1

The “relative molecular mass” of ammonium chloroplatinate is 444 g.

To find:

The “relative molecular mass” of the ammonium chloroplatinate.

Solution:

The ‘molecular formula’ of ammonium chloroplatinate is  

$\left(\mathrm{NH}_{4}\right)_{2}\left[\mathrm{PtCl}_{6}\right].$

Molar mass of nitrogen = 14 g/mol

Molar mass of hydrogen = 1 g/mol

Molar mass of platinum = 195 g/mol

Molar mass of chlorine = 35.5 g/mol

Substitute, the mass of all elements in the ‘molecular formula of ammonium chloroplatinate’.

$=2(14+14)+195+35.5 \times 6=36+195+213$

= 444 g

Therefore, the relative molecular mass of ammonium chloroplatinate is 444 g.

Answer 2

Answer:

444

Explanation:

2(14+1(4))+195+35.5(6)

36+195+213

444