Question

how many grams of co2 are there in 2.5 moles?
44.01 g
125.22
342.23 g
110.03 g

Explanation:

Step1: Find molar - mass of CO₂

The molar - mass of C is 12.01 g/mol and the molar - mass of O is 16.00 g/mol. For CO₂, molar - mass \(M=(12.01 + 2\times16.00)\text{ g/mol}=44.01\text{ g/mol}\).

Step2: Use the formula \(m = n\times M\)

Given \(n = 2.5\text{ moles}\) and \(M = 44.01\text{ g/mol}\), then \(m=2.5\text{ mol}\times44.01\text{ g/mol}=110.025\text{ g}\approx110.03\text{ g}\).

Answer:

110.03 g