I will give brainliest The pH scale is a logarithmic scale corresponding to the hydronium ion concentrations of aqueous solutions. The pH is equal to the negative logarithm (base 10) of the hydronium ion concentration.
pH = -log [H3O+]

This can be restated in an equation for calculating the hydronium ion concentration from the pH.
[H3O+] = 10-pH

A solution has a pH of 9.73. What is the [H3O+] in the solution?

gas

explanation:

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each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

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