Hi! i'm kinda having trouble getting this.. Don't understand it really


Ca(OH)2 + 2HCl-----> CaCl2 + 2H2O

How do i calculate Ca+?

:You need much more information.
1) do you mean the concentration of Ca+ ion?
2) is there excess HCl? What is given?


It was from a titration/ stoichiometry lab i did

it was between 0.05 mol/dm^3 HCl and saturated Ca(OH)2

The Ca(0H)2 volumes used were

23.39, 22.49 and 20.78

What was the volume of the HCl?

How did you "titrate". At what point did the "titration" end?

the volume of the HCL was 20cm^3

the HCL was titrated against the Ca(OH)2.. we were determining the solubilty product of Ca(OH)2.

WE did the experiment 3 times
and these were the readings for the volumes of the Ca(OH)2 used

23.39, 22.49, 20.78

Ok. You know the moles of HCl used (concentration x volume) watch units.
There fore, the balanced equation tells you how many moles of Ca(OH)2 were used, so the concentration of the Ca+ ion is that number of moles /volume of total water solution (acid solution and acid solution)

check my thinking, I am not certain of your setup and procedure.

  1. 👍 0
  2. 👎 0
  3. 👁 145
asked by Mallory

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    How mush CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution? g CaCl2 = (2.0L) *( 3.5 mol Cl-/1L) * (1mol CaCl2/ 2mol Cl-) *( 110.98 g CaCl2/ 1 mol CaCl2) = 5.549 g CaCl2 i don't think i did any of this right

    asked by Sydney on June 23, 2015
  2. science

    If 20g of Ca(0H)2 took part in the following reaction, how much CaCl2 would be formed. Ca(0H)2 + 2HCl to CaCl2 +2H20

    asked by tracey on January 2, 2012
  3. Chemistry

    Are these reactions correct? I was told to do them in "reaction de deplacement simple", or simple moving reaction, I think. 1. Mg + 2HCl = H2 + MgCl2 2. Li + HCl = H2 + LiCl 3. Fe + 2HCl = H2 + FeCl2 4. Zn + 2HCl = H2 + ZnCl2 5.

    asked by Holly on October 2, 2008
  4. Chemistry

    For the reaction CaCO3(s)+ 2HCl(aq)= CaCl2(aq)+ CO2(g)+ H2O(l) how many grams of CaCl2 can be obtained if 14.6 g HCl is allowed in CaCO3?

    asked by Lita on November 24, 2014
  5. chem hwk help!

    Given the following reaction: 3 CaCl2 + 2 H3PO4 Ca3(PO4)2 + 6 HCl How many grams of H3PO4 are needed to react completely with 1.837 g of CaCl2? I don't understand at all

    asked by Annie on January 25, 2013
  6. Chemistry

    which equation represents an oxidation-reduction reaction? 1.HCl+KOH-->KCl+H2O 2.4HCl+MnO2-->MnCl2+2H2O+Cl2 3.2HCl+CaCO3-->CaCl2+H2O+CO2 4.2HCl+FeS-->FeCl2+H2S

    asked by Alexis on March 20, 2011
  7. chemistry

    2Na3PO4 + 3CaCl2 ----> Ca3 (PO4)2 + 6NaCl how many moles of CaCl2 remain if .10 mol Na3PO4 and .40 mol CaCl2 are used? When amounts of both materials are listed one must worry about which is the limiting reagentalthough the

    asked by Hawk on June 21, 2006
  8. chemistry

    If 2.1 moles of CaCl2 are dissolved in enough water to make a 0.92-liter solution, what is the resulting molarity? 0.44 M CaCl2 0.70 M CaCl2 2.3 M CaCl2 3.0 M CaCl2

    asked by smith on November 7, 2010
  9. Math

    tell whether the given ordered pair is a solution of the equation y=9-2x;(-2,5) Help i kinda don't understand

    asked by Madison Kayla on October 23, 2017
  10. Science

    Is there an easier way to understand how to convert gallons to liters I am having problems understanding the whole metric conversion process. I don't know what method you are using so I don't know if I know an easier one or not. I

    asked by Somer on October 13, 2006

More Similar Questions