679
Sand is not a compound and haven't a molar mass; also different types of sand exist.
1 cup = 48 teaspoons 1 teaspoon = 0.02 cup
Of course 6 moles.
16 grams of oxygen how many moles is 0,5 moles.
55.8 moles
moles of what?
2 moles of Ca and 4 moles of OH
There are 4.5 moles of sodium fluoride in 4.5 moles of sodium fluoride.
There are 0.75 moles of ammonia in 0.75 moles of ammonia.
55.8 moles
The answer is 7,73 moles.