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`)

No of atoms in 4 gram of calcium

How many grams of alluminium will have the same number of atoms as one gram of magnesium?

How many grams of magnesium will have the same number of atoms as 6 grams of carbon ? (Mg = 24 u , C = 12 u )

How many grams of sodium wil have the same number of atoms as 6 grams of magnesium ("Given Na"=23u, Mg=24u)?

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

How many grams of oxygen gas contain the same number of molecules as 16 grams of sulphur dioxide gas ? (O = 16 u , S = 32 u)