Answer:
There are 71.89 moles of Zinc in 4.70kg of Zinc
Explanation:
Information given;
- Calculate Number of moles
- Mass of Zinc
Before proceeding, it is important to know the definition of what molar mass is. Molar mass is defined as the mass in grams of one mole of a substance.
So it means one mole of Zinc would contain the molar mass in g.
The molar mass of Zinc is given as; 65.38g/mol
How many moles then in 4.70kg?
Upon converting to g, we have 4.7 *1000 = 4700g
1 mol = 65.38g
x mol = 4700g
Cross multiplication yields;
x = (1* 4700) / 65.38
x = 71.89 moles
It means that there are 71.89 moles of Zinc in 4.70kg of Zinc
