ph measures the acidity of a substance, and is described by the equation ph = - log (h+), where h+ is the…

ph measures the acidity of a substance, and is described by the equation ph = - log (h+), where h+ is the concentration of hydrogen ions. a solution has an h+ concentration of 6.31×10^(-6). what is its ph? round your answer to the nearest tenth. ph = □

ph measures the acidity of a substance, and is described by the equation ph = - log (h+), where h+ is the concentration of hydrogen ions. a solution has an h+ concentration of 6.31×10^(-6). what is its ph? round your answer to the nearest tenth. ph = □

Answer

Explanation:

Step1: Identify the formula and given value

The formula for pH is $pH = -\log(H^{+})$, and $H^{+}=6.31\times 10^{-6}$.

Step2: Substitute the value into the formula

$pH=-\log(6.31\times 10^{-6})$. Using the property of logarithms $\log(ab)=\log(a)+\log(b)$, we have $pH=-(\log(6.31)+\log(10^{-6}))$. Since $\log(10^{-6})=- 6$ and $\log(6.31)\approx0.80$, then $pH=- (0.80 - 6)$.

Step3: Calculate the pH value

$pH=-0.80 + 6=5.2$.

Answer:

$5.2$