Question

question 9 (1 point)
4 moles of co₂ has mass of:
12 g
44 g
112 g
176 g

Explanation:

Step1: Calculate molar mass of \(CO_2\)

Molar mass of \(C = 12\space g/mol\), molar mass of \(O=16\space g/mol\).
Molar mass of \(CO_2=12 + 2\times16=44\space g/mol\)

Step2: Calculate mass of \(4\) moles of \(CO_2\)

Use formula \(m = n\times M\) (where \(n = 4\space mol\), \(M = 44\space g/mol\))
\(m=4\times44 = 176\space g\)

Answer:

176 g