Question

± pH of a Strong Acid and a Strong Base pH is a logarithmic scale used to indicate the hydrogen ion concentration, [H+], of a solution: pH=−log[H+] Due to the autoionization of water, in any aqueous solution, the hydrogen ion concentration and the hydroxide ion concentration, [OH−], are related to each other by the Kw of water: Kw=[H+][OH−]=1.00×10−14 where 1.00×10−14 is the value at approximately 297 K. Based on this relation, the pH and pOHare also related to each other as 14.00=pH+pOH

The temperature for each solution is carried out at approximately 297 K where Kw=1.00×10−14. Part A 0.15 g of hydrogen chloride (HCl) is dissolved in water to make 2.5 L  of solution. What is the pH of the resulting hydrochloric acid solution? Express the pH numerically to two decimal places. pH = SubmitHintsMy AnswersGive UpReview Part Part B 0.10 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 4.0 L of solution. What is the pH of this solution? Express the pH numerically to two decimal places. pH = SubmitHintsMy AnswersGive UpReview Part Part C This question will be shown after you complete previous question(s). Provide FeedbackContinue

Answer 1

M2 345s 25 1よ 10 こ2.7835 こ 2.78