Question

A chemist prepares a solution of barium acetate by measuring out of barium acetate into a volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's barium acetate solution. Round your answer to significant digits.

Answer 1

The given question is incomplete. The complete question is :

A chemist prepares a solution of barium acetate by measuring out 32 g of barium acetate into a 350 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's barium acetate solution. Round your answer to significant digits.

Answer: The concentration of barium acetate solution is 0.375 mol/L

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
`Ba(CH_3COO)_2` =
`\frac{\text {given mass}}{\text {Molar mass}}=(32g)/(255g/mol)=0.125mol`

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

`Molarity=(0.125* 1000)/(350ml)`

`Molarity=0.357M`

Therefore, the concentration of solution is 0.375 mol/L