how many moles are in 5.6 x 10^26 molecules of trisulfer pentachloride?

how many moles are in 56 g of aluminum chromate?

how many grams are in 6.9 miles of hydrogen gas?

how many grams are in 2.4 x 10^21 atoms of neon?

how many liters are in 5.6 moles of bromine?

how many grams are in 98.4L of oxygen?

You need to know how to convert from grams to mole and vice versa (it should be in your notes).

And you should also have information about avagadro's number.

If you don't understand any of this, I can try to explain, but you should have it in your notes if you were given this assignment.