Question

determine the oxide of a metal contains 30% oxygen by weight if the atomic ratio of metal and oxygen is 2 is to 3 determine the atomic weight of metal​

Answer 1

Answer:

Explanation:

Hello there,

According to the question, the atomic ratio of metal and oxide is 2:3, which means the formula would be M2O3.

So according to the formula, the % of oxygen could be calculated as:

Mass of oxygen/molecular mass of oxide=30/100

Therefore, 16*3/(2*M+16*3)= 30/100

Or M= (160–48)/2

=56g

Hope this is helpful! :)

Answer 2

Answer:

56

Explanation:

atomic weights of metal is 56