Answer: 9.68 x 10^10 grams.
Explanation:
Given that:
Mass of CO2 = ?
Number of molecules of CO2 = 2.2x10^9 molecules
Molar mass of CO2 = ? (let unknown value be Z)
For the molar mass of CO2: Atomic mass of Carbon = 12; Oxygen = 16
= 12 + (16 x 2)
= 12 + 32 = 44g/mol
Apply the formula:
Number of molecules = (Mass of CO2 in grams/Molar mass)
2.2x10^9 molecules = Z/44g/mol
Z = 2.2x10^9 molecules x 44g/mol
Z = 9.68 x 10^10g
Thus, the mass of 2.2x10^9 molecules of CO2 is 9.68 x 10^10 grams.
The mass of 2.2x10^9 molecules of CO2 is 9.68 x 10^10 grams.
Here we assume the molar mass of CO2 be z
Now
Since the Number of molecules of CO2 should be 2.2x10^9 molecules
So, the molar mass of CO2:
here Atomic mass of Carbon = 12; Oxygen = 16
So,
= 12 + (16 x 2)
= 12 + 32
= 44g/mol
Now we know that
Number of molecules = (Mass of CO2 in grams/Molar mass)
2.2x10^9 molecules = Z/44g/mol
Z = 2.2x10^9 molecules x 44g/mol
Z = 9.68 x 10^10g
Learn more about mass here: https://brainly.com/question/20512522
