Question

what is the mass in grams of 24.89 moles of CO2

Answer 1

Molar mass of CO2 : 12 + 16*2 = 44.0 g/mol

1 mole CO2 ----------------- 44.0 g
24.89 moles CO2 ----------- mass

mass of CO2 = 24.89 * 44.0

mass of CO2 = 1095.16 g 

hope this helps!.