Question

You are asked to weigh out 2.75 moles of Al. Calculate how many grams you will need to weigh out. Molar mass=26.98153g/mole

Answer 1

74.2 grams

For each mole of Al we have 26.98 grams

So, what about when we have 2.75 moles? Let's do the math:

1 mole = 26.98 grams

2.75 moles = x grams

x = 74.19 or 74.2 grams of Al