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    mnj's Avatar
    mnj Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Apr 23, 2012, 09:19 AM
    My exam question
    4g of chloral hydrate(165.40g/mol) was dissolved in 10ml of DW and then 50ml og 0.5M NaOH. After 2 min, the solution was titrated with 32ml of 0.1M H2SO4 , employing
    Phenolphthalein solution as indicator till a color change from pink to colorless was achieved. The neutralized liquid was titrated with 8 ml of 0.1 N AgNO3 using potassium chromate solution as indicator till precipitation of red chromate was obtained. Calculate the w/w % of chloral hydrate.
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #2

    Apr 23, 2012, 09:21 AM
    Please refer to this announcement
    Do not simply retype or paste a question from your book or study material

    We won't do your homework questions for you.
    You were given the assignment for you to learn.

    If you come up with your own answer and post it for us to critique that is within reason.

    If you have some SPECIFIC questions that you couldn't find or didn't understand, we may help with that.
    But this is your assignment, so show us you have at least attempted to complete it on your own.
    mnj's Avatar
    mnj Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Apr 23, 2012, 09:44 AM
    Thanks.. but we took this exam... and I don't know how to solve it.. I tried..
    But I want to understand it... thank you again!!
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #4

    Apr 23, 2012, 09:56 AM
    Show us what you have done and we'll assist further.
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