What is the percentage by mass of copper in copper in copper (l) oxide (CU₂O)? [O = 16; CU =64]

Alka

10 years ago

I disagree wid u@Fyzkid..

D answer is actually A. U can solve it by

1. Calculating d molar mass of Copper(1)oxide..

2. Calculating the mass of copper

3. Dividing the mass of copper by the total molar mass and den multiply by 100.

Bukkyz2

2 years ago

Is my message from "8 years ago" now?

Fyzkid

10 years ago

alright, thanks I made a mistake

Fyzkid

10 years ago

The answer should be ,,c,,