Question

How many grams are in 8.3 moles of CaCl2?

Answer 1

`\Large \boxed{\sf 921.3 \ g}`

Step-by-step explanation:

Use formula

`\displaystyle moles=(mass)/(M_r)`

`M_r=40+35.5 * 2 = 111`

Solve for mass

`mass=8.3 * 111=921.3`

Answer 2

(8.3×40)+(8.3×71)

921.3grames