if an acid has a pH of 1.1 what is the hydrogen ion concentration of the solution expressed in scientific notation to 3 significant figures, for my answer can it be written 1 x 10^-1.1 mol dm3? or can you not use decimals in the to the power of so should i write 1.1 x 10^-1

1 answer

answer can it be written 1 x 10^-1.1 mol dm^-3

While it could be written as that the quection asks for scientific notation and a decimal power is not scientific notation.
Depending on the version of calculator you need to evaluate 1 x 10^-1.1 mol dm^-3

On my Casio fx-83s

key press = <>

<shift><10x><(-)><1><.><1><=>

0.0794 mol dm^-3

7.94 x 10^-2 mol dm^-3