Question

Beryllium oxide, Beo, is an electrical insulator. How

many moles of beryllium oxide qre in a 250 gram
sample of the compound?

Answer 1

There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

Step-by-step explanation:

We can calculate the number of moles (η) of BeO as follows:

`\eta = (m)/(M)`

Where:

m: is the mass = 250 g

M: is the molar mass = 25.0116 g/mol

Hence, the number of moles is:

`\eta = (250 g)/(25.0116 g/mol) = 10.0 moles`

Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

I hope it helps you!