please help me please please

label Chemistry
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1,How many mL of 0.45M HCl(aq) are needed to neutralize a solution of 144.00mL of 0.35M barium hydroxide?

Calculate the molarity of the chloride ion ion present in the solution that results from mixing the proper volume of HCl (aq) with the solution of barium hydroxide specified in the preceding problem. 

Oct 20th, 2017

Balanced equation: 
Ba(OH)2 + 2HCl → BaCl2 + 2H2O 
1mol Ba(OH)2 reacts with 2mol HCl 
Use equation: 
Ma*Va = Mb*Vb*2 
0.45*Va = 0.35*144*2 
Va = 224

Volume of HCl required = 224ml.

Apr 4th, 2015

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