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Thread: Ca(OH)2 HCl question

  1. #1 Ca(OH)2 HCl question 
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    I have a solution of HCl and i want to neautralize it with Ca(OH)2
    I have 440,25 kg of HCl
    How much Ca(OH)2 will i need, if the HCl solution is:

    a) 32% per volume
    b) 32% per weight

    How much sediment at the bottom?


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  3. #2  
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    Oh my. Those take-home tests can be so pesky.

    Well, you can at least get started by posting for us the neutralization equation, balanced. Then we'll do the next step.
    *


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  4. #3  
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    YOU HAVE 440 KG of HCL!!!!!!!
    Pierre

    Fight for our environment and our habitat at www.wearesmartpeople.com.
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  5. #4 enough HCl for everyone! 
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    Ca(OH)2 + 2HCl > CaCl2 + H20

    CaCl2 is the sediment.

    Yes i have 440 kg HCl. 30% per weight is that from the solution the 0,3*440 are HCl?
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  6. #5
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    no one help me?
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  7. #6  
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    Thats not quite balanced... You need 2H^2O

    P.S. How do you do sub or super script here...
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  8. #7 ok 
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    ok now that is balanced which are the answers to my questions (pleeaasseee )
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  9. #8  
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    OK, so we know that 1 mole of calcium hydroxide is neutralized by 2 moles of HCl. Give us the weights (masses) of a mole of calcium chloride and a mole of HCl. Then we can tackle the math.
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