17. A solution has a pH of 10. What is the concentration of hydrogen ions [H^+] in the solution? A) 1times 10^-4M B) 1times 10^-10M C) 1times 10^-7M D) 1times 10^-14M Ansv ver: B ) 1times 10^-10M

The correct answer is B) $1\times 10^{-10}M$.<br /><br />The pH of a solution is a measure of the concentration of hydrogen ions $[H^{+}]$ in the solution. The pH scale ranges from 0 to 14, with 7 being neutral. A pH less than 7 indicates an acidic solution, while a pH greater than 7 indicates a basic solution.<br /><br />In this case, the solution has a pH of 10, which means it is a basic solution. The concentration of hydrogen ions $[H^{+}]$ can be calculated using the formula:<br /><br />$pH = -\log[H^{+}]$<br /><br />Rearranging the formula, we can find the concentration of hydrogen ions:<br /><br />$[H^{+}] = 10^{-pH}$<br /><br />Substituting the given pH value of 10, we have:<br /><br />$[H^{+}] = 10^{-10}$<br /><br />Therefore, the concentration of hydrogen ions $[H^{+}]$ in the solution is $1\times 10^{-10}M$.