How many moles are in 42.0 grams of sulfur

1.31 moles sulfur

Explanation:

Okay, so this problem involves using molar mass - something we can get from the periodic table. Sulfur has 32.06 grams per mole, or g/mol as sometimes we write it more simply.

How the problem should be set up is something like this:

42.0 grams sulfur times 1 mole sulfur divided by 32.06 grams sulfur, or

(42.0 g) x (1 mole) / (32.06 g)

This should equal 1.310043668122 moles of sulfur.

Taking significant figures into account, we would round the answer to 1.31 moles of sulfur.

the temperature of the gas, in k, not celsius.