Question

Solution A has a pH of 3 and solution Z has a pH of 6. How many times greater is the hydronium ion concentration in solution A than the hydronium ion concentration in solution Z?

Answer 1

it is 2 times greater

Answer 2

The hydronium ion concentration of solution A is 1000 times greater than the hydronium ion concentration of solution Z

Explanation:

To calculate the hydrogen ion concentration of the solution, we use the equation:

$pH=-\log[H^+]$

• For Solution A:

Putting values in above equation, we get:

$3=-\log[H^+]$

$[H^+]=10^{-3}M$

• For Solution Z:

Putting values in above equation, we get:

$6=-\log[H^+]$

$[H^+]=10^{-6}M$

Taking the ratio of hydrogen ion for both the solutions:

$\frac{[H^+]_{A}}{[H^+]_{Z}}=\frac{10^{-3}}{10^{-6}}\\\\\frac{[H^+]_{A}}{[H^+]_{Z}}=10^3$  

$[H^+]_{A}=1000\times [H^+]_{Z}$

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