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Topic: equivalence point  (Read 4115 times)

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Offline asmeet

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equivalence point
« on: June 16, 2010, 12:00:00 AM »
A 25.0 mL sample of sulfuric acid, H2SO4, requires 42.1 mL of 0.1533 M NaOH for titration to the equivalence point. What is the concentration of the sulfuric acid?

H2SO4 + 2 NaOH --> Na2SO4  + 2 H2O\


 a. none of these
b. 0.129 M
c. 0.0456 M
d. 0.258 M
e. 0.517 M
« Last Edit: June 16, 2010, 12:18:16 AM by asmeet »
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Offline sjb

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Re: equivalence point
« Reply #1 on: June 16, 2010, 02:24:03 AM »
How many moles of sodium hydroxide did you use up in your titration?

How many moles of sulfuric acid do these react with?
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Offline Borek

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Re: equivalence point
« Reply #2 on: June 16, 2010, 03:00:04 AM »
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Offline asmeet

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Re: equivalence point
« Reply #3 on: June 16, 2010, 10:20:55 PM »
Hi, I went to that site and I tried doiing it but I didnt get any of the answers. I have no idea how to do this problem at all
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Offline opti384

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Re: equivalence point
« Reply #4 on: June 16, 2010, 10:55:53 PM »
Did you try what  sjb said?
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Offline Borek

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Re: equivalence point
« Reply #5 on: June 17, 2010, 02:57:09 AM »
Quote from: asmeet on June 16, 2010, 10:20:55 PM
and I tried doiing it but I didnt get any of the answers

Show - step by step - what you did.
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Offline AWK

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Re: equivalence point
« Reply #6 on: June 17, 2010, 06:00:47 AM »
Quote from: asmeet on June 16, 2010, 10:20:55 PM
Hi, I went to that site and I tried doiing it but I didnt get any of the answers. I have no idea how to do this problem at all
Are you really read this chapter from Borek link? The equation 4 gives solution of your problem.
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