A 1.00 L volume of HCl reacted completely with 2.00 L of 1.50 M Ca(OH)2 according to the balanced chemical equation below. 2HCl

Question

3 years ago

12

+ Ca(OH)2 mc013-1.jpg CaCl2 + 2H2O What was the molarity of the HCl solution? 0.375 M 1.50 M 3.00 M 6.00 M

2 answers:

Neko [114] · Answer 1 · 2022-03-10T01:14:01+03:00

Neko [114]3 years ago

4 0

The answer is D
6.00 M. I just took the test

cluponka [151] · Answer 2 · 2022-03-10T03:16:55+03:00

The molarity of the HCl solution is 6.00M

<em>Calculation</em>

Step 1:find the moles of Ca(OH)2

= molarity x volume

= 2l x 1.5 mol/l = 3 .00 moles

Step 2:use the mole ratio of HCl : Ca(OH)2 to calculate the moles of HCl

That is Ca(OH)2 :HCl is 2:1 therefore the moles of HCl= 3.00 moles x2= 6.00 moles.

step 3: find the molarity of HCl

molarity of HCl = moles of HCL / volume in liters of HCl

= 6.00 moles/ 1 L = 6.00 M