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A 17.40-mL sample of potasium hydroxide is titrated to the stoichiometric point with 19.80 mL of 0.262 M HNO3(aq).
What is the molarity of the basic solution (potasium hydroxide) BEFORE it is titrated ?

2007-11-21 12:21:15 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

read your notes and ask your friends for help, and read your text book.

2007-11-21 12:31:22 · answer #1 · answered by Nadia S 2 · 0⤊ 0⤋

Let the HNO3 solution be called HS. Let the KOH solution be called KS. KOH + HNO3 ===> KNO3 + H2O

19.80mLHS/17.40mLKS x 0.262molHNO3/1000mLHS x 1molKOH/1molHNO3 x 1000mLKS/1LKS = 0.298 mole KOH/L solution.

2007-11-21 20:34:20 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋