1. use moles instead of grams for MnO2
(0.250*3 + 20.0/86.94 * 2) * 6.023*10^23
2. use grams instead of moles for Mn2O3 ...
A mixture contains 0.250 mol of Mn2O3 and 20.0 g of MnO2.
1.How many atoms of oxygen are present in the mixture?
2.How many grams of manganese are in the mixture?
1 answer
1 answer