Question

A chemist adds of a aluminum chloride solution to a flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Answer 1

The given question is incomplete. The complete question is:

A chemist adds 95.0 ml of a 1.5M aluminum chloride solution to a flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Answer: 19.0 grams

Step-by-step explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

`Molarity=(n* 1000)/(V_s)`

where,

n = moles of solute

`V_s` = volume of solution in ml

moles of
`AlCl_3` =
`\frac{\text {given mass}}{\text {Molar mass}}=(xg)/(133.34g/mol)`

Now put all the given values in the formula of molarity, we get

`1.5=(x* 1000)/(95.0* 133.34)`

`x=19.0g`

Therefore, the mass in grams of aluminum chloride the chemist has added to the flask is 19.0