Question

How many liters of 10% silver iodide mixed with 9 liter of a 4%silver iodide solution to get 6% solution

Answer 1

The correct answer is "4.5 liters". A further explanation is provided below.

Explanation:

Let the solution needed be "x".

then, according to the question,

⇒
`4 \ percent(9)+10 \ percent(x)=6 \ percent(9+x)`

By solving the above expression, we get

⇒
`0.04* 9+0.1x=0.06* 9+0,06* x`

⇒
`0.04 x=0.54-0.36`

⇒
`0.04x=0.18`

⇒
`x=(0.18)/(0.04)`

⇒
`=4.5 \ liters`