Question

calculate number of mole for 88g of CO2 molecule, 90 of H2O molecule​

Answer 1

Answer:

1.

molar mass of CO2 = 12+ 16*2 = 44g

given mass = 88g

number of mole = given mass/ molar mass

= 88/ 44 = 2 mole

2.

molar mass of H20 = 1*2 + 16 = 18 g

given mass = 90g

number of mole= given mass/molar mass

= 90/18

= 5 moles.

Explanation:

mass of

C = 12 g

O = 16 g

H = 1 g