.......a.....b....c....d....e.
mL H2O.20....15...10...5....0
mL acid.20...20...20..20....20
total V..40..35...30..25...20
From your description it appears to me that the concentrations are as follows:
a. 1.0 M x (20/40) = 0.5 M
b. 1.0 M x (20/35) = 0.57 M
c. 1.0 M x (20/30) = 0.67 M
etc. with e being 1.0 M x 20/20 = 1.0 M.
Write a procedure to demonstrate the effect of higher concentrations of HCl on its rate of reaction with antacid tablets. I have HCl with a concentration of 1.0 mol/L.
This is what I have so far. Are my concentrations correct for this procedure? E is my control and, a,b,c,d respectively represent 100%,75%.50% and 25%.
Step 1: Add 20 mL of water to beaker a. Add 15 mL of distilled water to beaker b. Add 10 mL of distilled water to beaker c. Add 5 mL of distilled water to beaker d. Don’t add any water to beaker e.
Step 2: Measure 20.0 mL of 1.0mol/L hydrochloric acid solution, then, add the solution to beaker a. Repeat this step for the remainder of the five beakers.
1 answer
7 answers