Which of the values below could be the pH of a solution that contains 7.8 x 10-6 M H30' at 25°C.

pH=5.108

pH shows the degree of acidity of a solution. The value between 0-14

The greater the value of H + ion concentration, the more acidic the solution is

Given

Concentration of H₃O = 7.8 x 10⁻⁶ M

Required

pH of a solution

Solution

pH= - log [H₃O⁺]

pH=-log[7.8 x 10⁻⁶]

pH=6-log 7.8

pH=5.108

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: