Question

how 4 moles of kmno4 contains one mole of oxygen atom​

Answer 1

Answer:

4mole of kmno4 contains one mole of oxygen

Explanation:

because mole of any element of the compound is indepent of the mole of the compound, even if the mole of the compound was 100 oxygen will be 1 mole

Answer 2

Answer:

0.25 moles

Explanation:

Molar mass of KMnO4 =158.034 g/mol

In the molecule of KMnO4 there are 4 O atoms

∆ 1 mole of KMnO4 ____ 4 mole of O

Mole of O = ( 4×16 g/mol) / (158.034 g/mol)= 0.405

Mole of O ~ 1/4× 0.405mol of KMnO4= 0.1 moles of KMnO4

for 1 mole of O= 1/0.405 ×0.1 =0.25 mol of KMnO4