Question

A student dissolves 20 g of potassium chloride in 100 cm3 of water in a beaker. What is the concentration of the solution in g/dm3?

Answer 1

200g/dm3

Step-by-step explanation:

100cm3 needs to be converted into dm3

cm3 ⇒ dm3= ÷1000

`(100)/(1000\\)`= 0.1

To find the concentration we need to follow the formula:

C=
`(m)/(v\\)`

C=
`(200)/(0.1)`

C= 200g/dm3