Question

How much of the 8% solution should we use to make 100g of a 3% solution?

This is all I have don't ask me any questions I don't know anything else about this

Answer 1

Let the unknown amount be 'x' grams.

According to the question,

x of 8% solution should be used to make 100g of a 3% solution.

Let us find x of 8%

`=x * 8\%`

`=x * (8)/(100)`

=
`=(8x)/(100)` (Equation 1)

Now, we will find 100g of a 3%

`= 100g * 3\%`

`= 100g * (3)/(100)`

`= 3` g (Equation 2)

Now, equating equations 1 and 2,

`(8x)/(100)=3 g`

`8x=300 g`

`x=(300)/(8) g`

x = 37.5 grams