Question

what amount of marble stone is required for making 66 g CO2 ? [Ca = 40 , C= 12 , O= 16 ]​

Answer 1

Cao + CO2 ➡ CaCO3

1. 44 gms of CO2➡100 gms of CaCO3
2. 66 gms of CO2➡?{let us assume x}
3. 44x=100 × 66{criss cross multiplication}
4. ': x={100×66}÷44
5. x = 100 ×(3/2)
6. x = 50 × 3
7. therefore x = 150
8. Hence it gives or requires 150gms of CaCO3.

Answer 2

Answer:

150 g

it is correct answer