Convert into mole. a)12 g of oxygen b)gas 20 g of water c)22 g of carbon dioxide

Answer:

A mole is the amount of a material that contains exactly 6.02214076×10²³. of the substance’s elementary entities. The mass of a substance with the same number of fundamental units as there are atoms in exactly 12.000 g of 1 12 C is referred to as a mole.

32 g of oxygen gas =1 mole

1 g of oxygen gas =1 /32 mole

Give that 12 g of oxygen gas.

Number of moles = Given Mass / Molar Mass

=12 / 32=0.375 mole.

18 g of water =1 mole

1 g of water =1 / 18 mole

Give that 20 g of water.

Number of moles = Given Mass / Molar Mass

=20 / 18=1.111 mole.

44 g of carbon dioxide =1 mole

1 g of carbon dioxide =1 / 44 mole

Give that 22 g of carbon dioxide.

Number of moles = Given Mass / Molar Mass

=22 / 44=0.5 mole.