often times when calculating molarity of hydrogen ions from ph, you get very long numbers. so long that your…

often times when calculating molarity of hydrogen ions from ph, you get very long numbers. so long that your calculator cannot display them so it shows you the number in scientific notation! convert this: 5.313131 e -11 to standard notation. make it 1 sig fig.

often times when calculating molarity of hydrogen ions from ph, you get very long numbers. so long that your calculator cannot display them so it shows you the number in scientific notation! convert this: 5.313131 e -11 to standard notation. make it 1 sig fig.

Answer

Explanation:

Step1: Understand scientific notation

The number $5.313131\text{ E -}11$ means $5.313131\times10^{- 11}$.

Step2: Round to 1 significant - figure

The first significant figure of $5.313131$ is 5. Rounding $5.313131$ to 1 significant figure gives 5.

Step3: Write in standard notation

The number in standard notation with 1 significant figure is $5\times10^{-11}$.

Answer:

$5\times10^{-11}$