Question

solution a has a ph of 2.0 solution b has a ph of 5.0 which solution is more acidic? based on the h ion concentrations in the two solutios, how mnay times more acidic?

Answer 1

This means that solution A is 1000 times more acidic than solution B.

Step-by-step explanation:

A solution with a pH of 2.0 is more acidic than a solution with a pH of 5.0. The reason is that pH is a logarithmic scale, which means that every whole number increase or decrease in pH represents a tenfold increase or decrease in the concentration of hydrogen ions (H+).

The pH scale ranges from 0 to 14, with 7 being neutral. Solutions with a pH below 7 are considered acidic, and those above 7 are considered basic or alkaline.

To calculate the hydrogen ion concentration in each solution, we can use the formula:

[H+] = 10^-pH

For solution A (pH = 2.0):

[H+] = 10^-2.0 = 0.01 mol/L

For solution B (pH = 5.0):

[H+] = 10^-5.0 = 0.00001 mol/L

We can see that solution A has a higher hydrogen ion concentration than solution B, which means that it is more acidic.

To determine how many times more acidic solution A is compared to solution B, we can calculate the ratio of their hydrogen ion concentrations:

[H+] solution A / [H+] solution B = 0.01 mol/L / 0.00001 mol/L = 1000