A bottle of #KMnO_4# contains 66.38 g of the compound. How many moles of #KMnO_4# does it contain?

1 Answer
Nov 18, 2015

Answer:

#0.42# g/mol

Explanation:

The number of moles in a compound is given by the formula:
moles#=(mass)/(mol. mass)#
Molar mass of #KMnO_4=158.034#
Given mass of #KMnO_4= 66.38g#

moles of #KMnO_4 = ##66.38/158.034=0.42# g/mol