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Homework Help: chemistry

Posted by jim on Wednesday, August 31, 2011 at 8:37am.

Calculate the number of moles of Ca(OH)2
(aq) needed to react completely with 125 mL of 6.00
M HCl(aq).

It doesnt give any stoichometric coefficients so how are you meant to do this?

• chemistry - bobpursley, Wednesday, August 31, 2011 at 10:43am

  Using the titration equation:
  
  moles Ca(OH)2 * Normality Ca(OH2)=molesHCl*normalityHCL
  
  moles Ca(OH)2 * 2N=.124L*6moles/liter * 1N
  
  molescalciumhydroxide=1/2 * .124 * 6
  

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