Practice: uncertainty and relativeuncertaintyYou prepared a 0.250M NH3 solution bydiluting 8.45 (+±0.04)mL of 28.0 (±0.5)wt%NH3 (density = 0.899 ± 0.003)g/mL) up to%3D500.0 (±0.2)mL. Find the uncertainty in0.250 M. Consider the molar mass of NH3,17.031g/mol, to have negligible uncertainty.hp

Dilute solutions can be prepared from concentrated solutions. a volume of the concentrated solution…

You prepared a 0.250M NH3 solution by diluting 8.45 (±0.04)mL of 28.0 (±0.5)wt% NH3 (density = 0.899 ± 0.003)g/mL) up to 500.0 (±0.2)mL. Find the uncertainty in 0.250 M. Consider the molar mass of NH3, 17.031g/mol, to have negligible uncertainty.

You prepared a 0.250M NH3 solution by diluting 8.45 (±0.04)mL of 28.0 (±0.5)wt% NH3 (density = 0.899 ± 0.003)g/mL) up to 500.0 (±0.2)mL. Find the uncertainty in 0.250 M. Consider the molar mass of NH3, 17.031g/mol, to have negligible uncertainty.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter3: Statistical Tests With Excel

Section: Chapter Questions

Problem 7P

See similar textbooks

Related questions

Q: B. DAY 2. Percent Acetylsalicylic Acid in the Aspirin Sample Calculation for the mass of aspirin for…

A: Given: The molarity of the NaOH solution is 0.1 mol/L. The mass of the aspirin sample taken in trial…

Q: Calculate the concentration of Pd<t ion in an unknown sample based on the following data: Vol. of…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Question 5

Q: 4. On a 20 cm paper chromatography plate, an analyte was spotted 1 cm from the bottom edge. The…

Q: (2) j lubäi On the gravimetric determination of CI, if the weight of AgCl ppt. was 1.433 g.; the…

A: This method is used for the determination of the analyte based on its mass. The principle behind the…

Q: A spectrophotometric method for the quantitative determination of the concentration of Pb2+ in blood…

Q: 3. Internal Standard. A solution containing 3.47 mM X (analyte) and 1.72 mM S (standard) gave peak…

A: Response factor is obtained from are of analyte peak and standard peak and concentration of analyte…

Q: (3) In a titration, the % analyte is computed from the following equation: Vol (titrant) x M…

Q: A solution containing 2.50 mM X (analyte) and 1.20 mM S (standard) gave peak areas of 2509 and 7132…

A: Since you have asked a multiple sub-part question, we will solve first 3 sub-parts for you. For…

Q: A 0.1475-M solution of Ba(OH)2 was used to titrate the acetic acid (60.05 g/mol) in a dilute aqueous…

A: w/v percentage of acetic acid in each of the sample 1 to 4 are required to calculate the mean w/v…

Q: Quantitative Analysis by External Standard Method Calcium in a juice sample is determined by atomic…

A: Initial concentration of solution = M1 Volume of starting solution used = V1 Concentration of…

Q: To determine the instrument detection limit of Pb2+ ions, a student made 10 blank solutions and…

A: Given: Standard deviation of the signal = 0.199 Equation of the curve =, y = 3.413x + b From here…

Q: QI. 4 litres of water obtained from a borewell in Vellore contains FeSO4 = 30.4 mg; CaS0 = 13.6 mg;…

Q: A student wanted to determine the level of lead in amoxicillin powder, so he transferred 148 mg of…

A: Given: The absorbance of the diluted solution, y = 0.48 Calibration equation is given by y = 12.25…

Q: A compound X is to be determined by UV/Visible spectrophotometry. A calibration curve is constructed…

A: The light absorbed by the solution is known as absorbance.

Q: 1. You wish to determine the %concentration of a stock solution of brilliant blue FCF…

A: Let's say that the molar concentration of stock solution be 'X M'.

Q: A method for the detection of morphine is used to generate a calibration curve in which the assay…

A: The explanation is given below-

Q: (Concentration) You are tasked to prepare 300.000 ppb of a sodium carbonate standard for a…

A: Parts per billion (ppb) concentration is defined as: mass of solute (in grams)volume of solution (in…

Q: You prepared a 0.250 M NH3 solution by diluting 8.45 (±0.04) mL of 28.0 (±0.5) wt% NH3 [density…

A: Solution -

Q: What are the differences between systematic and random errors and how do they effect accuracy and…

A: As per the Bartleby guidelines, an expert is allowed to answer one question at a time. Please repost…

Q: Spectrophotometric Determination of a Metal A 100.00 mL of exactly 250.0 mg/L Cu2+ stock solution…

A: To answer why NH3 is added to each standard solution before diluting with distilled water.

Q: What is the percentage error if tasked with weighing 120 mg of atropine sulfate on a class A…

Q: Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument. O True O False

A: The statement, "Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument"…

Q: Chemistry A KCl solution (Mm = 74.55 g/mol) was prepared by diluting 0.3473 ± 0.0002 g in 250.0 ±…

A: #A: Given the mass of KCl taken = (0.3473 ± 0.0002) g Molar mass of KCl = 74.55 g/mol Required…

Q: A titrimetric method for the determination of calcium in limestone was tested by analysis of an NIST…

A: The confidence interval can be calculated using the following formula:

Q: You conducted 3 gravimetric determination trials. The average values are: 3.45g, 3.55g, and 3.35g.…

A: Gravimetric analysis: This kind of analysis in chemical science has the application in determining…

Q: A mixture of three components is separated using paper chromatography, and each component is…

A: Given: Absorbance of standard solution- Compound A = 0.72 Compound B = 0.55 Compound C = 0.80 For…

Q: A mixture of three components is separated using paper chromatography, and each component is…

A: Given: Absorbance of standard solution- Compound A = 0.72 Compound B = 0.55 Compound C = 0.80 For…

Q: What is the percent error of the Ksp of Ca(OH)2 if the experimental value is 9.1 x 10^-5 and the…

A: Given Experimental value = 9.1 * 10-5 Accepted value = 5.5 * 10-6

Q: Q3: In a chromatographic analysis, a solution was prepared with 0.0837 M Octane (A) and 0.0666 M…

A: In the given question we have to calculate the concentration of octane in unknown sample.

Q: 2. A spectrophotometric method for the quantitative determination of the concentration of Pb in…

A: Given:- To find the concentration of the lead in the blood sample and its equation is:…

Q: 6. In a flame spectrometric determination of sodium, lithium is used as an internal standard. Assume…

A: The concentration and intensity are directly related to each other. According to Beer's-Lambert…

Q: Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument. True…

Q: To test the quality of the work of a commercial laboratory, duplicate analyses of a purified benzoic…

A: The CI of the standard deviation can be calculated as CI=x-+zσN Here, z is relative deviation, x- is…

Q: A Chromatographic quantitation of Methylene blue have the following data. Calculate the…

A: First, we have to plot the Peak Area versus standard concentration plot for the three standards.…

Q: A solution containing 3.51 mM X (analyte) and 1.67 mM S (internal standard) gave peak areas of 3505…

A: Given : Solution containing 3.51 mM X(analyte) & 1.67 mM S(internal standard) gave…

Q: Since this standard deviation value is close to the ϭ value, the iron concentration of 18.5 µg Fe/mL…

Q: An atomic absorption method for the determination of the amount of iron present in used jet engine…

A: Solutions- a standard deviation s = 3.1 µg Fe/mL. calculate the 95 and 99% confidence intervals…

Q: 1- Calculate the standard deviation of this group. 2- Calculate the Coefficient of variation.…

A: Standard Deviation and Coefficient of variation can be formulated as :

Q: In the first part A of the procedure, the ratio of moles H2O/moles CaSO4 is found to be 1.93. In the…

A: Relative deviation The consistency of a reading can be indicated by its relative deviation. The…

Q: Table 1-4: Spectrophotometric readings of a dye dilution series m of Dye A620 Reading of Sample A…

A: We are given absorbance reading for sample-A and sample-B for different mass values of the dye. We…

Q: volume

A: ✓The relative standard deviation is widely used in analytical chemistry to express the precision and…

Q: A mixture of three components is separated using paper chromatography, and each component is…

A: Given: Absorbance of standard solution- Compound A = 0.72 Compound B = 0.55 Compound C = 0.80 For…

Q: . A third spectrophotometric method for the quantitative analysis of Pb in blood yields an Ssamp Of…

A: Concentration of Pb2+ in original sample can be calculated using standard addition method. In which…

Q: Barium sulfate from a 1.300-g sample was contaminated with 9.4 mg of Fe2(SO4)3 and weighed a total…

A: Solution We know that A) Hence, the apparent % BaSO4 is 24.153%. B) Hence,…

Q: A 0.1 g amine-containing compound is dissolved in water then diluted to 100 mL. You subject it to…

A: We have given that Absorbance (A) = 0.545 Mass of amine = 0.1 g The molar absorptivity (ε) =…

Q: A mixture containing only Al2O3 (FM 101.96) and Fe2O3 (FM 159.69) weighs 2.019 g. When heated under…

Q: 1- What term refers to the ability to distinguish two peaks from one another in a chromatogram? two…

A: Chromatography is a technique used to seperate components from a mixture. Here we have to answer…

Question

Practice: uncertainty and relative
uncertainty
You prepared a 0.250M NH3 solution by
diluting 8.45 (+±0.04)mL of 28.0 (±0.5)wt%
NH3 (density = 0.899 ± 0.003)g/mL) up to
%3D
500.0 (±0.2)mL. Find the uncertainty in
0.250 M. Consider the molar mass of NH3,
17.031g/mol, to have negligible uncertainty.
hp

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Introduction

VIEW

Step 2: Solution

VIEW

Step 3: Conclusion

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Trial 1 Trial 2 Trial 3 Mass of solution 11.969 g 11.842 g 11.930 g Volume of solution 10.00 mL 10.00 mL 10.00 mL Density of solution 1.197 g/mL 1.184 g/mL 1.193 g/mL a) What is the average density of the solution? b) what is the relative average deviation, %?
Chemistry A KCl solution (Mm = 74.55 g/mol) was prepared by diluting 0.3473 ± 0.0002 g in 250.0 ± 0.2 mL.A. Calculate the concentration of KCl in the solution and its uncertaintyB. What is the pCl, and its uncertainty, of the solution prepared in the previous exercise?
2H+ + Na2CO3⟶2Na+ + H2O + CO2 the volume of 28.30 ± 0.06 mL of HNO3 solution was required for complete reaction with 0.8450 ± 0.0009 g of Na2CO3, (FM 105.988 ± 0.001 g/mol). Please Find the molarity of the HNO3 solution along with its absolute uncertainty. 1. [HNO3] = ________________ M 2. ___ ± ____________ M
Types of Error; Propagation of Uncertainty from Random ErrorYou prepare an NH3 [FM 17.030 5 (±0.000 2)] solution by diluting 7.36 (±0.03) mL of a 28.00 (±0.05) wt% NH3 solution [density = 0.899 (±0.003) g/mL] to a final volume of 500.00 (±0.02) mL. Find the molarity of the NH3 solution along with its absolute uncertainty.
answer (b) pls ans for (i) 0.0924 (ii) 0.0642 (iii) 0.3712 (iv) 0.9490 (v) 0.94910 (vi) 0.94913 (vii) 1.20 (viii) 1.23
A mixture containing only Al2O3 (FM 101.96) and Fe2O3 (FM 159.69) weighs 2.019 g. When heated under a stream of H2, the Al2O3 is unchanged, but the Fe2O3is converted to metallic Fe plus H2O(g). If the residue weighs 1.774 g, what is the weight percent of Al2O3 in the original mixture?
Q4 (a) Analyze the importance of dropping mercury electrode on polarography. (b) (i) Calculate the molarity of MgSO4 in a solution containing 1.5 g ofMgSO4 in a volume of 250 mL?(ii) Calculate the weight of MgSO4 in grams which is present in 100mL of 0.076 M MgSO4?(c) Evaluate the key differences between paper chromatography and gaschromatography
Trial 1 Trial 2 Trial 3 Mass of solution 29.824 g 29.855 g 29.816 g Volume of solution 25.00 mL 25.00 mL 25.00 mL Density of salt solution 1.193 g/mL 1.194 g/mL 1.193 g/mL Average density of salt solution --> 1.193 g/mL <-- What is the relative average deviation, %?
What is the concentration in mg/m3 of a solvent detected at 0.15% in aatmospheric analysis of confined space whose molecular weight is 78.11 g/mol? Assume NTP. Please explain, correct answer and typed answer only, no copy paste ( no AI generated answer)
A mixture containing only Al2O3 (FM 101.96) and Fe2O3 (FM 159.69) weighs 2.019 g. When heated under a stream of H2, the Al2O3 is unchanged, but the Fe2O3 is converted to metallic Fe plus H2O(g). If the residue weighs 1.774 g, what is the weight percent of Al2O3 in the original mixture? (Do not include % symbol in your answer.)
A stock solution of 0.225 +/- 0.003 M NaNO2 was transferred to a 100 mL volumetric flask (class A) and diluted to the mark. If 7 mL of the stock solution was transferred using one 5-mL and two 1-mL volumetric pipettes, what is the new concentration of the solution and the uncertainty? Please show how to calculate the uncertainty, that is the one part I don't understand how to do
Using a 25mL pipette, you prepare a standard solution by pipetting 25.00mL of the standard iron solution[0.25g/L] into a 500mL volumetric flask. Then, using a 10mL pipette you transfer a 4mL aliquot of this solution into a 50mL volumetric flask and dilute up to the mark. Calculate the % uncertainty. Question 1 options: 0.65 0.75 0.0075 0.45