# 27 ml of 01000 m kscn the reaction is ag scn agscns

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washings from the precipitate was titrated with 11.27 mL of 0.1000 M KSCN; the reaction is: Ag++ SCN-→ AgSCN(s)Calculate the percent As2O3in the sample.
8.Suppose a species’ concentration in mM follows a normal distribution with a mean of 240.0 mM and a standard deviation of 30.0 mM. How many samples out of 1,000 samples are expected to fall in the range of 210.0 mM ~ 300.00 mM? How many samplesare expected to be lower than 210.0 mM?9.A government chemist has performed a gravimetric analysis for chloride ion (in percent % concentration) on a sample submitted to the laboratory. The following results were obtained: Given the following data:Sample 1: 17.46%Sample 2: 17.52%Sample 3: 17.48%Sample 4: 17.10%Using t-values from the data provided. What is the 95% confidence interval for this set ofdata?10. In the lab I get the following 4 numbers for the molarity of iodine in a sample: 0.1015, 0.0991, 0.1016, and 0.1017. What is the mean, the 95% confidence interval, and the relative standard deviation for this data set?11. Is there any outlier in the data set in the question above? Do a Grubb analysis.12. When an analytical chemist uses the word “accuracy” when referring to the data obtained from an analysis, the chemist is talking about:
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