Question

Mass of oxygen in 10 gram caco3

Answer 1

Explanation:

1.6 g gram of oxygen in caco3

Answer 2

Explanation:

Here,,,,

Ca = 40

C = 12

O = 16

➡ Mass of CaCO3 = 14+12+(16×3) = 100

➡ Mass of oxygen in CaCO3 = 48-------48/100×10 = 4.8g

◾ Mass of oxygen is 4.8g ,,, so now we will calculate the moles :-

➡ Molar mass of oxygen = 16×2 = 32

◾ Moles = Mass

Molar mass

➡ Mass = 4.8

32

= 0.15 moles (are present in CaCO3)