From Experiment Correct Value % error Cs,metal |(J/goC) 0.2335 0.400

Q: Determination of AHf of NH4CI(s) & AH soln AHf of NH4CI(s) using your values of AH neut AHf of…

A: Please note that dissolution is an endothermic process. So, ∆Hsol should be 8.68 kJ/mol ( a positive…

Q: How many replicate measurements are needed to decrease the 95 and 99% confidence limits for the…

A:

Q: already took

A: Dear student this question is related to Mathematical errors in chemistry.

Q: Time (s) (w) (avi 0.950 50 0.459 100 0.302 150 0.225 200 0.180 250 0.149 300 0.128 350 0.112 400…

A: The concentration of reactant v/s time data given is,

Q: Proved Kw-Kaxkb

A: Kw is the ionic product of water which is numerically equal to the product of concentration of H+…

Q: Esall 0/50/ved its Volume (4L) His focusfooing Nagl from sodiumchloride it was related 3. by a daing…

A: Calculating the molarity of a diluted solution by using an equation given by dilution law: M1V1=M2V2…

Q: Br 3H 1H 6. 4 O ppm Answer Bank 1H 4H 2H 3H Incorrect

A:

Q: [S] (mM) Product formed (µmol min-') 1.5 0.21 2.0 0.24 3.0 0.28 4.0 0.33 8.0 0.40 16.0 0.45…

A:

Q: An instrumental method was validated by running an analysis on a standard solution with a known…

A: Accuracy:  It is generally expressed by the percentage of error. Relative accuracy is the difference…

Q: Match the correct choices with the given. For gravimetric analysis, use this data to answer the…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Determine the percentage error and the concentration of the prepared NaOH given the following data.…

A: For NaOH solution , molarity and normality are equal.  So first we we would Calculate normality of…

Q: idea how gravimetric analysis provides accurate results despite of it being time consuming

A: Gravimetric analysis is the technique that involves the measurement of mass of an analyte as to…

Q: 1. Select: Plant Food A NPK ratio: 11-35-15 Trial 1 Trial 2 2. Mass of sample(g): 2.0g 2.0g 3. Mass…

A: Given: molar mass of MgNH4PO4.6H2O = 245.41 g/mol molar mass of P = 30.97 g/mol molar mass of P2O5…

Q: 29 1004 108 110 50 10 20 30 40 50 60 70 60 90 100 110 Reiative intensity

A:

Q: 01 3 6. 9. 12 0.223 0.182 0.141 0.100 0.059 cted three plots of the data, and determined the slope…

A: The question is based on the concept of chemical kinetics. We have  to determine the order and…

Q: Express 20,000ppb as a percentage strength A. 2% B. 0.02% C. 0.00002% D. 0.002%

A: We have given that  Express 20000ppb as a percentage strength A. 2% B. 0.02% C. 0.00002% D. 0.002%

Q: A 50.00 (±0.03) mL portion of an HCl solution required 29.71(±0.03) mL of 0.01963(±0.0030) M Ba(OH)2…

A: Given, MHCl=29.71 ml×0.01963 mmol Ba(OH)2ml×2mmol HClmmol Ba(OH)250.00 ml

Q: 1. Standardization of approximately 0.025 M KMNO4 Data Table Experimental Vol of vol of KMNO4 (ml)…

A: The balanced ionic reaction between C2O42- and MnO4- is as follows: According to the balanced…

Q: Value of (5) is equal ат JP/V ат aP/V ӘР ( ат у ӘР as V to....

A:

Q: Trial [A]o [B] Rate (M/min) 1 0.40 0.20 0.12 2 0.20 0.20 0.030 3 0.40 0.40 0.24 4 0.60 0.40 0.54

A: Let order with respect to A is x and order with respect to B is y

Q: Observations: Burette Reading (ml) Volume of sample (ml) Normality of NazS203 solution (N) Volume of…

A: Given: Normality (N) of Na2S2O3 = 10.00 N Volume of the sample = 201 ml Volume (V) of Na2S2O3 = 4.5…

Q: One of the following is not one of the Minimization of errors. Internal standard method O الاختيارات…

A: Here we have to find which option is not correct I.e. one of them is not one of the minimization of…

Q: Concentration (mg/ml) Time (min) 8.5 0.5 6.8 1 5.4 1.5 4.0 2 3.2 2.5 2.5 3 What will be the slope of…

A: Concept used: Slope = (Y2 - Y1)/ (X2 - X1) y = mx + c

Q: Observations: Burette Reading (ml) Normality of Na,S,03 solution (N) Volume of Na,S,03 solution (ml)…

A: Dissolved oxygen levels in drinking water/sea water can be measured by a titration method, an…

Q: Q2 B: What is the relative standard deviation, for the following data: 3.80, 3.941, 3.107, 3.656…

A:

Q: Titration Heating Volume of DCIP (ml) Average Amt of Conc of #3 time vol of Vit C in Vit C Sample…

A: Ascorbic acid in Vitamin C reacts with DCIP in 1:1 fashion.

Q: (25.3-9) Find a 99% confidence interval for the mean of the copper content of a brass alloy sampled…

A:

Q: I got a task in analytical chemistry to calibrate, standardize, verify and validate an analytical…

A: It is said that every location in the world is positioned differently in relation to magnetic…

Q: Using the data given below, determine the relationship between Sstd and Cstd using an unweighted…

A:

Q: Which of the following is not a way of expressing data reliability:

A: Data reliability is related to the accuracy and completeness of values measured. In case of an…

Q: The significant test used to reject or accept any anomalous measurement is:" Gross sample test" None…

A: Anomalous measurements are measurements that differ from the other results.

Q: PROCEDURE B: DATA CHART KIO3 Starch Time (sec) Rate 100/t Approximate Temperature Actual Temp.…

A: Rate of a chemical reaction is defined as the speed with which the reaction proceeds. It determines…

Q: Value Number of sig figs 301.50 0.0500 2650 7.560 x 1023

A: To determine the number of significant digits .

Q: According to the information given below, compute the correlation coefficient and the covariance…

A: Given Standard deviation of the portfolio (stock A and stock B) : 0.37 Standard deviation of the…

Q: Trial 1 Initial Volume Trial 3 Initial Volume 8 9 0 Trial 2 Initial Volume 10 d for thcare Trial 1…

A:

Q: Given the below [S] and V determine Km, Kcat and Vmax (E] =3.8e M. Attach spreadsheet. [S] V 1.25…

A: It is example of enzyme kinetics we are required to determine Vmax ,Km, Kcat for the given data

Q: 2. Which of the following data sets is more precise? Which is more accurate? How do you kr Data Set…

A: Error is  determined by the difference between the  measured value and true  value.

Q: Calculate the mean, standard deviation, coefficient of variation given the following data Initial…

A: mean= (30.95+ 0.05+ 30.95+ 0.05) ÷2 = 30.95 ml+ 0.05ml = 31.0ml Standard deviation= (31.0-30.95)2…

Q: TIOН (aq)

A: In the given reaction, TfOH is used as a hydration reagent for alkyne.

Q: Desk Name Date Lahoratory Instructor Unknown nn, or letter EXPERIMENT REPORT SHEET Gravimetric…

A:

Q: REPORT SHEET Gravimetric Analysis of a Chloride Salt Trial 2 Trial 3 Trial 1 0.40958 1.30169 D-4101…

A: The calculation for chloride ions is calculated below

Q: Show ALL calculations pls. Don't reject if you dont know how to answer I need this.  a. What are…

A: In this titration, soda ash is undergoing titration using two different indicators to indicate the…

Q: A pharmacist is asked to weigh 140 mg of lidocaine powder on the standard balance. The maximum…

A: Given that, Sensitivity requirement = 3mg Acceptable error = 5% To be calculated, Minimum weighable…

Q: Plot Density(g/mL) vs Mass (g) 20 18 y = 10.01x -0.017 R² = 1 16 14 12 10 6 0.2 0.4 0.6 0.8 1 1.2…

A:

Q: Which of the following is true regarding calibration curve? a. Most calibration curves show positive…

A: To define: Calibration curve.

Q: B. Same as Part A, but three determinations are made: Sample 1 Sample 2 Sample 3 mass of sample…

A: B. Given that :   Sample 1 Sample 2 Sample 3 Mass of sample 0.4892 g 0.3981 g 0.3429 g Mass…

Q: 1. Select: Plant Food A v NPK ratio: 11-35-15 Trial 1 Trial 2 2. Mass of sample(g): 2.0g 2.0g 3.…

A:

Q: 10) The following results were obtained in an analysis of iron content in an ore sample. The results…

A: