Question

PLEASE HELP EXPLAIN !! SHOW WORK FOR BRAINLIEST Acidity is measured on the pH scale. The acidity of a substance is given by pH=−logH, where H is the concentration of Hydrogen ions. If a substance has an H value of 0.0004, what is the pH of the substance, rounded to the nearest tenth?

Answer 1

3.4

Step-by-step explanation:

The pH or acidity of a solution is given by the equation

$pH = -\log{[H]}$

where [H] is the concentration of $H^+$ ions. If the $H^+$ concentration is 0.0004 (=$4×10^{-4}),$ then its pH level is

$pH = -\log{(4×10^{-4})} = 3.4$