Question

If a substance has a hydrogen concentration [H+] equal to 10-12 m/l, what is the pH? Is the substance acidic or basic? Group of answer choices

Answer 1

Answer: The substance is basic in nature because its pH is coming out to be 12

Step-by-step explanation:

pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.

To calculate the pH of the solution, we use the equation:

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

We are given:

`[H^+]=10^(-12)M`

Putting values in above equation, we get:

`pH=-\log(10^(-12))`

`pH=12`

There are three types of solution: acidic, basic and neutral

To determine the type of solution, we look at the pH values.

• The pH range of acidic solution is 0 to 6.9
• The pH range of basic solution is 7.1 to 14
• The pH of neutral solution is 7.

As, the pH of the solution is 12. So, the solution is basic in nature

Hence, the substance is basic in nature because its pH is coming out to be 12