Question

From 200 mg of CO₂, 1021 molecules are removed. How many molecules of CO₂ are left?​

Answer 1

Answer:

CO_(2)` molecules removed `= 10^(21)` <br> No. of `CO_(2)` molecules left `= 2.74 xx 10^(21) - 10^(21) = 1.74 xx10^(21)` <br>

Explanation: