Question

Molarity and Dilution

How many moles are needed in a 100. mL solution of a 0.10M CuSO4 5H2O solution?

Answer 1

Answer: The moles needed are 0.01.

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
`(CuSO_4.5H_2O)` = ?

`V_s` = volume of solution in ml

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

`0.10=(n* 1000)/(100)`

`n=(0.10* 100)/(1000)=0.01`

Therefore, the moles needed are 0.01.