Question

How many moles are there in 58 g of CO2?

Answer 1

The question requires us to calculate the number of moles in 58g of CO2.

To solve this question, we first need to calculate the molar mass of CO2 from the atomic masses of C and O (considering the number of atoms of each element), then relate the molar mass with the mass of the sample given (58g) to calculate the number of moles.

First, let's calculate the molar mass of CO2 knowing that the atomic masses of carbon (C) and oxygen (O) are 12.01 u and 15.99 u, respectively:

molar mass (CO2) = (1*12.01) + (2*15,99) = 43.99 g/mol

Now that we know that there are 43.99 g of CO2 in 1 mol of this compound, we calculate the number of moles in 58g of CO2:

43.99 g CO2 ---------- 1 mol CO2

58 g CO2 -------------- x

Solving for x, we have:

`x=((58gCO_2)*(1molCO_2))/((43.99gCO_2))=1.32mol_{}`

Thus, there are 1.32 moles of CO2 in 58g of this compound.