Question

How many moles of carbon tetrachloride (CCl4) is represented by 543.2 g of carbon tetrachloride? The atomic weight of carbon is 12.01 and the atomic weight of chlorine is 35.45.Question 18 options:A) 8.35×104 molesB) 3.53 molesC) 11.4 molesD) 5.42 moles

Answer 1

3.53moles

Explanations

The formula for calculatung the moles of the compound is expressed as:

`moles\text{ of CCl}_4=\frac{mass}{molar\text{ mass}}`

Given the following

Mass of CCl4 = 543.2 grams

Determine the molar mass of CCl4

`\begin{gathered} molar\text{ mass}=12.01+4(35.45) \\ molar\text{ mass}=12.01+141.8 \\ molar\text{ mass}=153.81gmol^(-1) \end{gathered}`

Determine the required mole

`\begin{gathered} mole\text{ of CCl}_4=(543.2)/(153.81) \\ mole\text{ of CCl}_4=3.53moles \end{gathered}`

Hence the moles of tetrachloride is 3.53moles