Question

10. How many moles zinc metal( 2.0 g Zn) were used? AW for Zn is 65.39 g. Show work!

Moles Zn =???
Please helpp

Answer 1

0.0306 moles

Step-by-step explanation:

The number of moles of zinc metal (2.0 g Zn) used can be calculated using the formula:

moles = mass / atomic weight

where atomic weight is the mass of one mole of atoms of the element.

First, find the number of moles of zinc:

moles = 2.0 g / 65.39 g/mol = 0.0306 moles

So, 0.0306 moles of zinc metal (2.0 g Zn) were used.