How many moles are 5 grams of calcium ? (Atomic mass of calcium `= 40 u`).

How many moles are there in 5 g of calcium ?

How many moles are 28 grams of Nitrogen atoms?

How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u )

Calculate the mass of 3.5 gram atom of calcium. Atomic mass of calcium is 40

How many grams of neon will have the same number of atoms as 4 grams of calcium ? (Atomic masses : Ne = 20 u, Ca = 40 u )

How many atoms are present in 2 grams of calcium? (GAW of Ca is 40g)

No of atoms in 4 gram of calcium

How many atoms ar in one unit cell of calcium ?