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    iwanttoknow123's Avatar
    iwanttoknow123 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Mar 22, 2014, 10:26 AM
    Buffer Problem
    How do you solve this problem??

    50 mL 0.100 M NaOH is mixed with 50 mL 0.050 M HCl. What is pH is the resulting solution?
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #2

    Mar 22, 2014, 10:32 AM
    What do YOU think ?
    While we're happy to HELP we wont do all the work for you.
    Show us what you have done and where you are having problems..
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #3

    Mar 22, 2014, 10:40 AM
    Look at the concentrations. What will happen if mixed? What will be left over after neutralization?
    iwanttoknow123's Avatar
    iwanttoknow123 Posts: 2, Reputation: 1
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    #4

    Mar 22, 2014, 11:14 AM
    Well, to calculate the pH you take pKa + log([A−]/[HA]), and so you have to calculate the pKa, which is -logKa and that's where the problem is. I don't know how to calculate the Ka.
    talaniman's Avatar
    talaniman Posts: 54,325, Reputation: 10855
    Expert
    		  
    #5

    Mar 22, 2014, 11:53 AM
    You have a computer, so find the generic formula for calculating ka
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