Answer to Question #119886 in General Chemistry for queen

Question

How many significant digits will be used if a solution has a hydronium concentration of
5.33x 10^-2 mol/L

Answer 1

The Hydronium concentration is 0.0533 mol/L

According to mathematics 2 zeros r here insignificant and the significant figures are 5,3 and 3 total 3 significant figures.

But in ordet to calculate pH we have to take all the digits

pH = -log[0.0533]

=1.27