Question

5 points

12. How many liters of a 4.2 Molar solution of NaCl are needed to make
352 grams of AICI3? *
O A. 0.186 liters
B. 1.86 liters
C. 18.6 liters
D. 352 liters

Answer 1

Moles of AlCl_3

`\\ \tt\hookrightarrow (352)/(133)=2.64mol`

Now

• Molarity=Moles of solute/Volume of solution in L

`\\ \tt\hookrightarrow 4.2=(2.64)/(V)`

`\\ \tt\hookrightarrow V=0.62L`