There is 368g of Rb2S, how many moles are there?

Question

asked Jan 8, 2024 233k views

1 Answer

Petter Kjelkenes · Answer 1 · 2024-01-14T16:05:28+0000

To find the number of moles of a substance, you need to divide the mass of the substance by its molar mass.

The molar mass of Rb2S is (2x85.468 + 32.06) g/mol = 212.996 g/mol

So, to find the number of moles of Rb2S in 368g, you would divide 368g by 212.996 g/mol :

moles = 368 g / 212.996 g/mol = 1.73 moles

There are 1.73 moles of Rb2S in 368g.