How many moles of hydrochloric acid were there in the volume of acid added in the titration? ii) How many moles of calcium hydroxide were there in the 25 cm sample of solution that the student used in the titration? iii) What was the concentration of the calcium hydroxide solution in mol/dm?
How many moles of hydrochloric acid were there in the volume of acid added in the titration? ii) How many moles of calcium hydroxide were there in the 25 cm sample of solution that the student used in the titration? iii) What was the concentration of the calcium hydroxide solution in mol/dm?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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i) How many moles of hydrochloric acid were there in the volume of acid added in the titration?
ii) How many moles of calcium hydroxide were there in the 25 cm sample of solution that the student used in the titration?
iii) What was the concentration of the calcium hydroxide solution in mol/dm?
Transcribed Image Text:19. Astudent wanted to find out the concentration of a solution of calcium hydroxide, and carried
out a titration usinga solution of hydrochloric acid that had a concentration ofo.os mol/dm.
The student used a measuring eylinder to measure out 25 cm' of the calcium hydroxide solution
into a conical flask and then added1 cm'of phenolphthalein indicator, The hydrochloric acid
was put into a burette and then added to the calcum hydroside solution in the conical flask until
the colour of the indicator just changed. The initial and final readings on the burette are shown
below.
-24
25
-20
Inhial reading
final reading
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