Question

What is the pH of a solution of HCL with a concentration of
5 x 10^-4

Answer 1

0.0005

Step-by-step explanation:
The negative exponent means you must move the decimal point 4 positions to the left. 5 can also be written as 5.0 to show the decimal point. To move it 4 positions to the left gives: 0.0005

Hope this helps