Determining the initial concentration of br

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Question 1: What volume (in mL) of a solution 0.183 M in Ca(OH)2 must we use to neutralize 28.7 mL of a solution 0.385 M in H3PO4

Question 2: We have 2.80 L of an aqueous NaBr solution. We add an excess of AgNO3. We form 9.53 g of AgBr(s). What was the initial concentration of Br- (in mol/L) in this aqueous NaBr solution? 

Question 3: What is the pH of a 0.109 M solution of the acid HA if its ionization constant, KA, is 0.39.

Reference no: EM131949225

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