Question

How many grams are in 1.68 x 1026 molecules of CO2? (molar mass=44.01 g/mol)

Answer 1

Okay: so
Recall that
6.022 x 10^23 Molecules in one mole

Answer 2

E=n*L
E=1.68*10^26
L=6.02*10^23
By making "n" the subject, we get n=E/L
When substituting the figures in thier corresponding variables and simplifying, we get
n=279.06 mol
Then from mole eqn. ( n= m/M)
Where m is mass and M is molar mass, we can make "m" the subject to be "m=nM"
By putting in the values and simplifying ,m (mass) =12281g.

Answer 3

Thank you!!