Question

the sample has 86.0 g c and 14.0 g h. mass to mole: how many moles of c are in 86.0 g c? 85.1 mol 0.140 mol 7.16 mol

Explanation:

Step1: Recall the formula for moles

The formula to calculate the number of moles \(n\) is \(n=\frac{m}{M}\), where \(m\) is the mass and \(M\) is the molar mass. The molar mass of carbon \(M = 12.01\space g/mol\).

Step2: Substitute the values

Given \(m = 86.0\space g\) and \(M=12.01\space g/mol\), then \(n=\frac{86.0\space g}{12.01\space g/mol}\).

Step3: Calculate the result

\(n=\frac{86.0}{12.01}\approx7.16\space mol\)

Answer:

7.16 mol