Question

Convert into moles.

a. 64 g of Oxygen gas. b. 36 g of water​

Answer 1

a.)4 moles

64 gram oxygen = 64/16 = 4 mole oxygen. 1 mole of any element contains 6.022 * 10^23 atoms in it. hence 4 moles of oxygen.

b.)2 moles

18 gm of water is equal to 1 mole of it.... hence 36 gm of water is equal to 2 moles of it....

36/18 = 2 moles.