Question

You have 2 solutions X &Y.The pH of solutions X is 5 & Y is 8.Which solution has more hydrogen ion concentration?Which of this acidic and which one is basic?

Answer 1

More hydrogen ion concentration :X
Acidic: X
Basic: Y

Answer 2

Answer: Solution X has more hydrogen ion concentration and hence is more acidic in nature.

Explanation: We are given 2 solutions having different pH values.

pH of solution X = 5

pH of solution Y = 8

Hydrogen ion concentration can be calculated by using the formula:

$pH=-log[H^+]$

Putting the pH value of X in above equation to find out the hydrogen ion concentration, we get

$5=-log[H^+]$

$[H^+]_X=antilog(-5)=10^-5M$

Similarly, Hydrogen ion concentration in solution Y, $[H^+]_Y=10^{-8}M$

A solution is always acidic when the pH is less than 7 and the solution is always basic when the pH is more than 7.

Hence, Solution X is acidic in nature and solution Y is basic in nature.