0.14S B. Molar Concentration of an Acid Solution 25.0 2. Buret reading, iniialm
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Question
0.14S B. Molar Concentration of an Acid Solution 25.0 2. Buret reading, iniialm 3 Buret reading.firal mt) 4 Volume of NaOH dispensed (m) 's Molar concentration of NiH ubition (mot 6 Moles of NaOH dispensed (mo 1e-33 1211° 0.00315 0.0 00 Part 8.74 7. Molar concentration of acid solution (mo Show cal 6. b. For Trials 2 and 3, the molar concentration of the acid was 0.0922 M and 0.0856 M respectively a. What is the average molar concentration of the acid solution? Data Analysis, B b. what are the standard deviation and the relative standard deviation (%RSD) for the molar concentration of te acid solution? Data Analysis, C and D O A Volumetric Analysis
Explanation / Answer
a) The average molar concentration of the acid is given as
Average Molar concentration = ½*(0.0922 + 0.0856) M = 0.0889 M (ans).
b) The standard deviation of the molar concentration is given as
SD = (0.0922 – 0.0889)2 + (0.0856 – 0.0889)2/(2 – 1) M = 0.0046669 M 0.0047 M (ans).
The relative standard deviation is given as
RSD = SD/(average)*100 = (0.0047 M)/(0.0889 M)*100 = 5.2868% (ans).
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