Question

What is the percent composition of beryllium (Be) and oxide (O) in BeO? Round

your answer to the nearest whole percentage.

Answer 1

`\% Be=36\%\\\\\% O=64\%`

Step-by-step explanation:

Hello!

In this case, since the percent compositions of Be and O in beryllium oxide are computed as shown below:

`\% Be=(m_(Be))/(M_(BeO)) *100\%\\\\\% O=(m_(O))/(M_(BeO)) *100\%`

Since atomic masses are respectively 9.01 and 16.0 g/mol and the molar mass of the compound is 25.01 g/mol, the resulting percent compositions are:

`\% Be=(9.01)/(25.01) *100\%=36\%\\\\\% O=(16.0)/(25.01) *100\%=64\%`

Best regards!