How many moles of CO2 are contained in 88 grams of CO2

A. 0.3 mole
B. 0.5 mole
C. 2 moles
D. 3.1 moles

We can use dimensional analysis to convert 88 g of CO2 to moles of CO2. We shall need the following equality to set up the conversion factor:
1 mol CO2 = 44.0099 g CO2
[(88 g CO2)/1][(1 mol CO2)/(44.0099 g CO2)] = 1.999550 mol CO2 or 2.0 g CO2 rounded to 2 significant figures

This is the most basic thing you can learn in chemistry. How you missed it I don't know.

Moles = mass / Molar Mass

where mass is what you are given (88g) and Molar mass is the mass of one mole of the substance, which in this case is CO2 with a molar mass of 44 g/mol

88 / 44 = 2 moles.

moles = mass/molar mass


since the mm of co2 is 44, moles = 88g/44gper mol

answer =c
Happy Studies

C. 2 moles

? mole CO2 = 88 g CO2 x 1 mole CO2/44 g CO2 = 2.0 mole CO2