Question: 4. The following five values were obtained for the wt % of an organic acid in a sample: 30.3, 31.1, 32.6 , 36.7, 28.9. Determine

4. The following five values were obtained for the wt %

4. The following five values were obtained for the wt % of an organic acid in a sample: 30.3, 31.1, 32.6 , 36.7, 28.9. Determine if the value of 36.7 may be rejected at the 90% (two-tailed) confidence level. 5. The concentration of a NaOH solution is determined in a single experiment by titrating a weighed sample of pure, dried KHP (MW = 204.229) with the NaOH. The data are: Weight of KHP = (11.6723 + 0.0001) - (10.8364 +0.0001) 9 Volume NaOH = (32.68 0.02) - (1.24 0.02) mL Where the standard deviations are Ox values. (a) What is the molarity of the NaOH? (b) Based on the propagation-of-error formula, what is the standard deviation of the molarity,om? =

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