Question

If I mix 5 gallons of p% boric acid with 5 gallons of water, what is the concentration of the mixture?

Answer 1

Answer: The concentration of the mixture is 0.5 p % .

Step-by-step explanation:

Given: 5 gallons of p% boric acid is mixed with 5 gallons of water.

Amount of boric acid = p% of 5 gallons

$=\dfrac{p}{100}\times5\text{ gallons}= 0.05p\text{ gallons}$

Total solution : 5 +5 = 10 gallons

then, the concentration of the mixture = $\dfrac{\text{Amount of boric acid in solution}}{\text{Total solution}}\times100$

$=\dfrac{0.05p}{10}\times100\\\\=0.5p$

Hence, the concentration of the mixture is 0.5 p % .