A loss of 0.4 mg of Zn occurs in the course of an analysis for that element. Calculate the percent relative error due to this loss if the mass of Zn in the sample is *(a) 30 mg (b) 150 mg *(c) 300 mg (d) 500 mg

A loss of 0.4 mg of Zn occurs in the course of an analysis for that element. Calculate the percent relative error due to this loss if the mass of Zn in the sample is (a) 30 mg (b) 150 mg (c) 300 mg (d) 500 mg

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.15QAP

See similar textbooks

Related questions

Q: If the concentration of sodium ion in this average individual is 0.140 M, what is the mass of sodium…

A: The concentration of sodium ion = 0.140 MThe volume of blood in an average individual = 4.7…

Q: Suppose you measure out 0.0132 moles of ammonium sulfate on the balance. If the weigh boat…

Q: 2. Do your observations support the principle that mass is conserved in a chemical reaction, that…

A: “Since you have asked multiple question, we will solve the first (Q2) question for you. If you want…

Q: The amount of nickel(II) present in an aqueous solution can be determined by precipitating the…

A: The concentration of DMG solution is 0.0567 M = 0.0567 mol/L.The concentration of nickel(II) sulfate…

Q: 10. Which of the following does not match the others? 168 (A) 67.2 3.88 1000 100 10 All, (M)/mol)…

A: ◆ Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: DATA: weight of the crucible + lid (Worucible-Hid) =30.4265 weight of the crucible + lid + magnesium…

A: Magnesium is a metal which burns to magnesium oxide in presence of oxygen. According to the…

Q: How many milligrams of a 18-mg sample of calcium-47 remain after 45 days? Express your answer using…

A: The decay of a radioactive substance can be modeled by the equation:where:N(t) is the quantity of…

Q: If 10.00 ml of 0.0131 M KIO3 are used in the first part of the standardization process, how many…

Q: Balance these chemical equations. (Use the lowest possible whole number coefficients.) (a) HgO →…

A: Applying hit-trial method of balancing chemical reaction by balancing atoms both side of arrow.

Q: Urea, chemical formula (NH,)½CO, is used for fertilizer and many other things. Calculate the number…

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: “Since you have posted multiple questions, we will provide the solution only to the first…

Q: Now if z is the initial mass of magnesium and y is the initial mass of aluminum, the total number of…

Q: Consider the reaction. heat 2 Al(s) + Fe,O, (s) Al,0,(s) + 2 Fe(l) If 11.5 kg Al reacts with an…

Q: Cinnamic alcohol is used mainly in perfumery, particularly in soaps and cosmetics. Its molecular…

A: Given, Molecular formula of Cinnamic alcohol is C9H10O Mass of sample = 0.668 g Required,…

Q: The "setup" for the problem, "what is the mass, in grams, of 5.69*1019 atoms of Xe?" which is…

A: Given : number of atoms of Xe = 5.69 X 1019 Since number of atoms = moles X Avogadro's number

Q: Write the molecular and empirical formulas of the following compounds:

A: Given: Four compounds:

Q: Magnesium oxide (MgO) forms when the metal burns in air.(a) If 1.25 g of MgO contains 0.754 g of Mg,…

A: Magnesium burns in air, which results in the formation of magnesium oxide. It is expressed in the…

Q: (a) A student has a 10.0g sample of CaBr2. Show the setup of the calculation to determine the number…

A: The number of the moles of any substance present in a sample is the ratio of the given mass of that…

Q: Mass of 250 mL beaker 101.73, O.47 68.32 G9.7L Mass of copper turnings + 250 mL beaker Mass of…

A: The data given is as shown below.

Q: The following quantities are placed in a container: 1.5 × 1024 atoms of hydrogen, 1.0 mol of sulfur,…

A: We’ll answer the first three subparts. Please submit a new question to get the answer of other…

Q: You have on hand Tagament 300mg / 2 * ml The order is for Tagament 0.2 gm, IM , q6h How many ml will…

A: To calculate the required amount of Tagamet in milliliters (ml), we need to convert the given dose…

Q: Calculate each of the following:(a) Mass fraction of Cl in calcium chlorate(b) Mass fraction of P in…

A: The answer for part (a) is given below. Kindly repost the other part as separate question

Q: I only need parts B and D, thank you! The following quantities are placed in a container: 1.98 ×…

A: Solution - (b) According to the question - Given values are - The moles of atoms of H =…

Q: Mass of 0.1 mole of methane is (a) 1.6 g (b) 0.1 g (c) 1g (d) 16 g

A: To find the mass of 0.1 mole of methane (CH4), you need to know the molar mass of methane.The molar…

Q: Suppose that in a gravimetric analysis, you forget to dry the filter crucibles before collecting…

A: Qualitative analysis is a branch of chemistry that deals with the identification of elements…

Q: 1. Write an equation showing how the mass of the substance sought can be converted to the mass of…

Q: The diameter of a carbon atom is 1.54 A° . (a) Express thisdiameter in picometers. (b) How many…

A: (a)

Q: The student is provided with the carbonate of an unknown metal, X,CO3. The student measures the mass…

A: Molar mass of CO2 = 44.01 g/mol Mass of contents before reaction = 187.50 g Mass of contents after…

Question

A loss of 0.4 mg of Zn occurs in the course of an analysis for that element. Calculate the percent relative error due to this loss if the mass of Zn in the sample is

*(a) 30 mg (b) 150 mg *(c) 300 mg (d) 500 mg

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

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 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

Carbon 14 dating The technique of carbon 14 (4C) dating is used to determine the age of archaeological and geologi- cal specimens. The formula T = -8310 In x is sometimes used to predict the age T (in years) of a bone fossil, where x is the percentage (expressed as a decimal) of 14C still pres- ent in the fossil. (a) Estimate the age of a bone fossil that contains 4% of the 14C found in an equal amount of carbon in present- day bone. (b) Approximate the percentage of "C present in a fossil that is 10,000 years old.
Richards and Williard determined the molar mass of lithium and collected the following data (a) Find the mean molar mass determined by these workers. (b) Find the median molar mass (c) Assuming that the currently accepted value for the molar mass of lithium is the true value, calculate the absolute error and the present relative error of the mean value determined by Richards and Williard. (f) What factors have led to changes in molar mass since 191? (g) How would you determine the accuracy of a molar mass? Experiment Molar mass, g/mol 1 6.9391 2 6.9407 3 6.9409 4 6.9399 5 6.9407 6 6. 9391 7 6. 9406
10. Which of the following does not match the others? (A) 67.2 3.88 1000 100 (B) (C) 1s 2s 2p (D) ofelectrons
7. 22 This question is about several salts. (a) A hydrated salt, compound A, is analysed and has the following percentage composition by mass: Cr, 19.51%; CI, 39.96%; H, 4.51%; O, 36.02%. Calculate the formula of compound A, showing clearly the water of crystallisation. Show your working. formula of compound A = (b) A student carries out an experiment to determine the amount of water of crystallisation in the formula of another hydrated salt. The student intends to remove the water by heating the hydrated salt. A diagram of the apparatus used by the student is shown below. crucible pipeclay triangie The student adds the hydrated salt to the crucible and weighs the crucible and contents. The student heats the crucible and contents and allows them to cool. The student weighs the crucible and residue. The student's results are shown below. 16,84 Mass of crucible + hydrated salt/g 16.26 Mass of crucible + residue after heating/g
Use the meaning of the prefix "nano-" to select the value of "x" in this equation: 1 m = 1 x 10x nm . The value of " x " is (a) +9 (b) -6 (c) +6 (d) -9
Balance the following equations. Show all coefficients including "1". (a) Mn₂O3+ (b) Cu + (c) (d) Fe₂O3+ (e) (f) HNO3+ (8) (h) N₂+ MnO₂+ Cu₂O+ CO C3H5(NO3)3 → H₂O+ CO₂ FeS+ NO₂+ Cu(NO3)2 →>> SO₂ NO₂+ Fe + NO HCN + CO₂+ N₂+ 0₂ CO-> C4 0₂+ H₂O → S→ 0₂ → H₂O CO₂+ CuO+ 0₂ Fe₂S3
Mass of 0.1 mole of methane is (a) 1.6 g (b) 0.1 g (c) 1g (d) 16 g
A 1.30 g sample of titanium chemically combines with chlorine gas to form 5.16 g of titanium chloride. (a) What is the empirical formula of titanium chloride? (b) What is the percent by mass of titanium and the percent by mass of chloride in the sample?
i) What is the ratio of Magnesium/oxygen j) What is the percent error in the experiment?
Be sure to answer all parts. Urea, chemical formula (NH,)½CO, is used for fertilizer and many other things. Calculate the number of N, C, O, and H atoms in 1.68 x 10* g of urea. Enter your answers in scientific notation. (a) Nitrogen, N x 10 atoms (b) Carbon, x 10 atoms (c) Oxygen, x 10 atoms (d) Hydrogen, H x 10 atoms
Manganese is a key component of extremely hard steel.The element occurs naturally in many oxides. A 542.3-g sampleof a manganese oxide has an Mn/O ratio of 1.00/1.42 and con-sists of braunite (Mn₂O₃) and manganosite (MnO).(a) What masses of braunite and manganosite are in the ore?(b) What is the ratio Mn₃/Mn₂in the ore?
5) 3) 2) Percentage Composition Worksheet Give the % composition of all elements in these compounds. Show all work! 1) ammonium sulfite % N % H sodium bromide aluminum acetate % Al % C 4) copper (II) hydroxide % S % O magnesium carbonate % H % O % Na % Br M_ For chemistry help, visit http://www.chemfiesta.com % Cu % O % H % Mg % C % O O Ma 9.8 ebinayo muiaestog Llobiriqaoriq muinul (Ot 2 (8 etellua (III) lexoin Ⓒ2000 Cavalcade Publishing - All Rights Reserved