Suppose you did the titration three times and got the following data for the concentration of NaOH: 0.1002, 0.1006, and 0.1010 M. Calculate the relative average deviation of the data in units of ppt and enter the numerical answer below.
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- In this problem, you will determine the % relative standard deviation (%RSD) from a series of titrations. Pretend that the [NaOH] you measured in your three titrations are 0.1018, 0.1024, and 0.0978. Determine the %RSD of these three values. Write your answer to one decimal place.SCE students measured the concentration of HCl in a solution by titrating with different indicators to find the end point.Indicator Mean HCl concentration (M)(± standard deviation)Number of measurementsBromothymol blue 0.09565 ± 0.00225 28Methyl red 0.08686 ± 0.00098 18Bromocresol green 0.08641 ± 0.00113 29Is the difference between indicators 1 and 2 significant at the 95% confidence level? Answer the same question for indicators 2 and 325 ml of pickled brine was taken from an apple pickled with vinegar and diluted to 500 ml, 25 ml of this was taken and acidity was determined with 0.2 N (Factor: 1.05) NaOH. In the main trials, 6.3 ml - 6.5 ml - 6.9 ml, respectively, 0.1 ml base was used in the analysis without using the sample.For example, how many ppm is its acidity?
- A student performs three titrations in order to standardize a NaOH solutions. The results are: 0.105 M, 0.0990 M, and 0.110M. Calculate the average and the standard deviation. Are the results acceptable, or should she perform more titrationCalculate the standard deviation for the molarity of ascorbic acid in the vitamin C supplement solution. What does your standard deviation tell you about the precision of your titration measurements?In a titration, the following masses were recorded from an unknown substance that contain some amount of KHP in three experimental solutions 0.44, 0.437, and 0.437, if the volume of NaOH IN THE exp are 5, 10, and 8 respectively in order to the masses of unknown substances.1. Find the mass of KHP of each experiment 2.Find % KHP 3. Find average % KHP 4.find standard deviation.( Note; in a previous three 100% KHP experiments the average molarity of NaOH in each experiment are shown below average molarity=5.30x 10^-4+ 4.137x10^-4 + 5.0x10^-4 divided by 3 = 4.81x10^-4 ).
- with your knowledge on analytical separation and analysis, outline a suitable analytical separation protocol that can be employed to recover polluted river bodies and make them wholesome for drinking.A method for the detection of morphine is used to generate a calibration curve in which the assay response (y) is plotted versus morphine concentration (x, in mg/L). This gives a straight line with a slope (m) of 0.241 and a y-intercept (b) of 0.011, where y = mx + b. The slope of this line has a standard deviation of ±0.007, and the standard deviation of the intercept is ±0.006. If the sample from an athlete gives a response of 0.506 ± 0.013 in this method, what is the concentration of morphine in the sample and estimated precision of this concentration?The thiourea in a 1.455 g sample of organic material was extracted into a dilute sulfuric acid solution and titrated with 37.31 mL of 0.009372 M Hg2+ via reaction: 4(NH2)2CS + Hg2+ →[(NH2)2CS]4 Hg2+ Is this an example of total analysis technique or concentration technique? Explain.
- 1. A student performed this experiment and obtained the following concentration values: 0.02813 M, 0.02802, and 0.02788 M a. what is the mean concentration? b. what is the standard deviation of these results? 3. how would the following errors affect the concentration of Cl- obtained in question 2b? give your reasoning in each case. a. the student read the molarity of AgNo3 as 0.02104M instead of 0.02014M b. the student was past the endpoint of titration when he took the final buret reading.1. What is the MW of the analyte?2. What is the meq of the analyte?3. What will be the weight (in grams) of the analyte if the standardization is to be quartered?4. What will be Normality of the solution if 7.5ml of the titrant was consumed in the standardization?5. What is the average Normality if two or more trials were conducted with the values of 0.102N and 0.105N?With the knowledge on analytical separation and analyses, outline a suitable analytical separation protocol that can be employed to recover polluted river bodies and make them wholesome for drinking