Asked by annie
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
Answers
Answered by
Dr Russ
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
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
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