GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What are the number of moles of CO2 which contains 16 g of oxygen?
|
|
0.25 mole
|
|
|
0.2 mole
|
|
|
0.4 mole
|
|
|
0.5 mole
|
Explanation:
Detailed explanation-1: -Answer: Option A Solution: One mole of CO2 has mass of 44 g and 32 g of O2. So 16 g of O2 have 22 g of CO2 or 0.5 moles of it.
Detailed explanation-2: -The number of molecules present in 0.5 moles of CO2 is6. 022 x 1023 x 0.5 = 3.011 x 1023.
Detailed explanation-3: -No. of moles = given mass/actual mass. =16g/32g. =0.5g.
There is 1 question to complete.