Answer:
To find the number of milligrams (mg) in 0.750 moles of zinc, you will need to know the atomic weight of zinc. The atomic weight of zinc is 65.38 g/mol.
To convert from moles to milligrams, you will need to multiply the number of moles by the atomic weight of zinc and then multiply by 1000 to convert the weight to milligrams.
Thus, the number of milligrams in 0.750 moles of zinc is:
0.750 moles * 65.38 g/mol * 1000 mg/g = 48.7850 mg
So there are approximately 48.79 mg of zinc in 0.750 moles of the element.
Step-by-step explanation: