Answered: Based on the data given answer…

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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Based on the data given answer questions. 1,3, and 5 please ?? Question 2 is already answered to solved 1 and 3 1. Based on your three trials, discuss the precision of your data 2. The actual concentration of the unknown is 0.200 M. (Check with instructor to ensure that this value is accurate.) Calculate the percent error based on the average molarity of your three trials. Answer: Actual Molarity= 0.200M Mcalculated = 0.1755M % error = ( [actual - calculated value]/actual ) *100 Putting values; = ((0.200 - 0.1755)/0.200 )*100 = 12.25% 3. Based on your answer to (2), discuss the accuracy of your data. 5. 80.0 mL of 0.30 M NaOH and 80.0 mL of 0.30 M HCl are mixed together. What is the approximate pH of the solution —acidic, basic, or neutral? Explain.

Table 1: Titration Data for Unknown #_C
Volume of unknown (HCI)
(mL)
Initial burette reading (mL)
Final burette reading (mL)
Volume Titrant (NaOH) Added
(mL)
Molarity of HCI (M)
Average (M)
Trial 1
10.00 mL
21.00 mL
3.30 mL
17.70 mL
0.1770M
0.1755M
Trial 2
10.00 mL
29.45 mL
12.20 mL
17.25 mL
0.1725M
Trial 3
10.00 mL
33.10 mL
15.40 mL
17.70 mL
0.1770M

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