Question

To 225ml of a 0.750M solution of KL a student adds enough water to make 1.00L of a more dilute KL solution. What is the morality of the new solution? plz show work

Answer 1

Answer: The molarity of the new solution is 0.169 M

Step-by-step explanation:

We use the dilution law:

`M_1V_1=M_2V_2`

where,

`M_1\text{ and }V_1` are the molarity and volume of concentrated solution

`M_2\text{ and }V_2` are the molarity and volume of diluted solution

We are given:

`M_1=0.750M\\V_1=225mL\\M_2=?\\V_2=1.00L=1000ml`

Putting values in above equation, we get:

`0.750* 225=M_2* 1000\\\\M_2=0.169M`

Thus the molarity of the new solution is 0.169 M