ALEKS 360; 18WKS F/ GEN. CHEMISTRY >I<
13th Edition
ISBN: 9781264070077
Author: Chang
Publisher: INTER MCG
expand_more
expand_more
format_list_bulleted
Question
Chapter 1, Problem 1.79QP
Interpretation Introduction
Interpretation: It should be calculated the percent error for the given measurements
Concept Introduction:
The percent error of a measurement can be calculated as follows
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
You plot A vs Conc (mg/mL) for a set of 5 standards in mg/mL and get the equation for the line as 0.962=0.310x+0.315. Solve for x and report the results with correct units and sig-figs.
Is this question really just as simple as solving for x? I feel like I'm missing something here...
Solve the value of x in the expression and express your answer in correct significant figures
log ( [3.0 x 10 -2][2.0 x 10 4] / (2.0 x]3 ) = 1.347
The value of x, in correct significant figures, is
Does the answer need 2 sig figs or 3?
Chapter 1 Solutions
ALEKS 360; 18WKS F/ GEN. CHEMISTRY >I<
Ch. 1.3 - Which of the following statements is true? (a) A...Ch. 1.3 - Prob. 2RCFCh. 1.4 - Which of the following diagrams represent elements...Ch. 1.5 - An ice cube is placed in a closed container. On...Ch. 1.6 - The diagram in (a) shows a compound made up of...Ch. 1.6 - Determine which of the following properties are...Ch. 1.7 - A piece of platinum metal with a density of 21.5...Ch. 1.7 - The density of sulfuric acid in a certain car...Ch. 1.7 - Convert (a) 327.5C (the melting point of lead) to...Ch. 1.7 - The density of platinum is 21.45 g/cm3. What is...
Ch. 1.7 - The melting point of adamantine is 518F. What is...Ch. 1.7 - The density of copper is 8.94 g/cm3 at 20C and...Ch. 1.8 - Determine the number of significant figures in...Ch. 1.8 - Carry out the following arithmetic operations and...Ch. 1.8 - Give the length of the pencil with proper...Ch. 1.8 - A student measures the density of an alloy with...Ch. 1.8 - Four mass measurements of a metal cube were made...Ch. 1.9 - A roll of aluminum foil has a mass of 1.07 kg....Ch. 1.9 - The volume of a room is 1.08 108 dm3. What is the...Ch. 1.9 - The density of the lightest metal, lithium (Li),...Ch. 1.9 - Prob. 1RCFCh. 1.9 - What is the volume in L of a 1.24-kg sample of...Ch. 1.9 - Prob. 3RCFCh. 1.10 - Prob. 9PECh. 1 - Explain what is meant by the scientific method.Ch. 1 - What is the difference between qualitative data...Ch. 1 - Classify the following as qualitative or...Ch. 1 - Classify each of the following statements as a...Ch. 1 - Give an example for each of the following terms:...Ch. 1 - Give an example of a homogeneous mixture and an...Ch. 1 - Give an example of an element and a compound. How...Ch. 1 - What is the number of known elements?Ch. 1 - Give the names of the elements represented by the...Ch. 1 - Give the chemical symbols for the following...Ch. 1 - Classify each of the following substances as an...Ch. 1 - Classify each of the following as an element, a...Ch. 1 - Identify each of the diagrams shown here as gas,...Ch. 1 - Explain how the distances between particles...Ch. 1 - Using examples, explain the difference between a...Ch. 1 - How does an intensive property differ from an...Ch. 1 - Do the following statements describe chemical or...Ch. 1 - Does each of the following describe a physical...Ch. 1 - Name the SI base units that are important in...Ch. 1 - Write the numbers represented by the following...Ch. 1 - What units do chemists normally use for density of...Ch. 1 - Describe the three temperature scales used in the...Ch. 1 - Bromine is a reddish-brown liquid. Calculate its...Ch. 1 - The density of methanol, a colorless organic...Ch. 1 - Convert the following temperatures to degrees...Ch. 1 - Prob. 1.26QPCh. 1 - Convert the following temperatures to kelvin: (a)...Ch. 1 - Convert the following temperatures to degrees...Ch. 1 - What is the advantage of using scientific notation...Ch. 1 - Define significant figure. Discuss the importance...Ch. 1 - Express the following numbers in scientific...Ch. 1 - Prob. 1.32QPCh. 1 - Express the answers to the following calculations...Ch. 1 - Express the answers to the following calculations...Ch. 1 - Prob. 1.35QPCh. 1 - How many significant figures are there in each of...Ch. 1 - Carry out the following operations as if they were...Ch. 1 - Carry out the following operations as if they were...Ch. 1 - Three students (A, B, and C) are asked to...Ch. 1 - Three apprentice tailors (X, Y, and Z) are...Ch. 1 - Carry out the following conversions: (a) 22.6 m to...Ch. 1 - Carry out the following conversions: (a) 242 lb to...Ch. 1 - The average speed of helium at 25C is 1255 m/s....Ch. 1 - How many seconds are there in a solar year (365.24...Ch. 1 - Prob. 1.45QPCh. 1 - A jogger runs a mile in 8.92 min. Calculate the...Ch. 1 - A 6.0-ft person weighs 168 lb. Express this...Ch. 1 - The speed limit on parts of the German autobahn...Ch. 1 - Prob. 1.49QPCh. 1 - Prob. 1.50QPCh. 1 - Prob. 1.51QPCh. 1 - Carry out the following conversions: (a) 70 kg,...Ch. 1 - Aluminum is a lightweight metal (density = 2.70...Ch. 1 - Ammonia gas is used as a refrigerant in...Ch. 1 - Prob. 1.55QPCh. 1 - Which of the following statements describe...Ch. 1 - Prob. 1.57QPCh. 1 - In determining the density of a rectangular metal...Ch. 1 - Calculate the mass of each of the following: (a) a...Ch. 1 - A cylindrical glass bottle 21.5 cm in length is...Ch. 1 - The following procedure was used to determine the...Ch. 1 - Prob. 1.62QPCh. 1 - A piece of silver (Ag) metal weighing 194.3 g is...Ch. 1 - Prob. 1.64QPCh. 1 - A lead sphere of diameter 48.6 cm has a mass of...Ch. 1 - Lithium is the least dense metal known (density:...Ch. 1 - Prob. 1.67QPCh. 1 - Vanillin (used to flavor vanilla ice cream and...Ch. 1 - At what temperature does the numerical reading on...Ch. 1 - Prob. 1.70QPCh. 1 - A resting adult requires about 240 mL of pure...Ch. 1 - (a) Referring to Problem 1.71, calculate the total...Ch. 1 - Three different 25.0-g samples of solid pellets...Ch. 1 - Prob. 1.74QPCh. 1 - Prob. 1.75QPCh. 1 - The surface area and average depth of the Pacific...Ch. 1 - The unit troy ounce is often used for precious...Ch. 1 - Prob. 1.78QPCh. 1 - Prob. 1.79QPCh. 1 - The natural abundances of elements in the human...Ch. 1 - The mens world record for running a mile outdoors...Ch. 1 - Prob. 1.82QPCh. 1 - Chalcopyrite, the principal ore of copper (Cu),...Ch. 1 - Prob. 1.84QPCh. 1 - Prob. 1.85QPCh. 1 - Measurements show that 1.0 g of iron (Fe) contains...Ch. 1 - The thin outer layer of Earth, called the crust,...Ch. 1 - Prob. 1.88QPCh. 1 - One gallon of gasoline in an automobiles engine...Ch. 1 - A sheet of aluminum (Al) foil has a total area of...Ch. 1 - Prob. 1.91QPCh. 1 - Chlorine is used to disinfect swimming pools. The...Ch. 1 - An aluminum cylinder is 10.0 cm in length and has...Ch. 1 - Prob. 1.94QPCh. 1 - Prob. 1.95QPCh. 1 - Prob. 1.96QPCh. 1 - A human brain weighs about 1 kg and contains about...Ch. 1 - Prob. 1.98QPCh. 1 - A bank teller is asked to assemble one-dollar sets...Ch. 1 - A graduated cylinder is filled to the 40.00-mL...Ch. 1 - A cobalt bar (density = 8.90 g/cm3) is shown here....Ch. 1 - Prob. 1.102QPCh. 1 - Prob. 1.103QPCh. 1 - Prob. 1.104QPCh. 1 - Tums is a popular remedy for acid indigestion. A...Ch. 1 - A 250-mL glass bottle was filled with 242 mL of...Ch. 1 - What is the mass of one mole of ants? (Useful...Ch. 1 - How much time (in years) does an So-year-old...Ch. 1 - Estimate the daily amount of water (in gallons)...Ch. 1 - Public bowling alleys generally stock bowling...Ch. 1 - Fusing nanofibers with diameters of 100 to 300 nm...Ch. 1 - Prob. 1.112QPCh. 1 - Estimate the total amount of ocean water in...Ch. 1 - Estimate the volume of blood in an adult in...Ch. 1 - Prob. 1.115QPCh. 1 - Estimate the distance (in miles) covered by an NBA...Ch. 1 - In water conservation, chemists spread a thin film...
Knowledge Booster
Similar questions
- A chemist analyzes a sample of iron ore furnished by the National Institute of Standards and Technology, NIST. He obtains the following results: = 10.52%, s = 0.05, n = 10. The NIST's value for this sample is 10.60% Fe. Is the chemist's result (mean) significantly different at the 95% confidence level?arrow_forwardCalculate the percent error for the following measurements: (a) The density of alcohol (ethanol) is found to be 0.8060 g/mL (true value = 0.7980 g/mL). (b) The mass of gold in an earring is analyzed to be 0.8478 g (true value = 0.8644 garrow_forwardHere is the question I need help with: "Isopropyl alcohol has a density of 0.785 g/mL (d=0.785 g/mL). What volume of this solution is required to obtain 20.0g of the liquid (m=20.0g)? HINT: Use algebra to solve the equation below for the unknown variable. Be sure to use the correct amount of significant figures." d=m/varrow_forward
- Need help with this textbook question thats been giving me hard time. Please show steps. calculate x to the correct number of significant figures: Should be in standard notation or scientific notation. ln(3.86 / 1.00) = 362.8 x 10^3 / 8.314 (((298.1)^-1) - x^-1) Here are choices: 300.9 301 3.0 x 102 300.88 300.8arrow_forward(3.41 × 10-1 - 5.7 × 10-3)*[(6.8 × 10-2)/(1.82 × 10-3)]arrow_forwardA calibrated flask has a mass of 0.02 kg when empty, 0.095 kg when filled with water, and 0.058 kg when filled with denatured alcohol. What is the density of the alcohol?arrow_forward
- Use calculator to solve the problems. Write your answer in the correct scientific notation with the correct number of sig fig. Enter numbers only, no units. Enter scientific notation as (number)E(exponent) for example: enter 2 x 104 as 2E-4 (note there are no spaces) (9.4 x 10° mm) (4.5 x 10° mm) =arrow_forward1-Two Students A and B performed four analyses on a sample for its calcium content and got the following results: Student A 18.30% 18.50% 18.60% 18.8% Student B 16.92% 16.91% 16.88% 16.91% The actual amount of calcium in the sample is 16.90%. Which of the following statements is correct? a) Student A is less accurate and less precise than student B. b) Student A is more accurate and more precise than student B. c) Student A is more accurate but less precise than student B. d) Student A is less accurate but more precise than student B. e) Student A is more accurate than student B.arrow_forward3.) Perform the following calculations. Express your answers in scientific notation (1 pt each) using the correct number of significant figures. a) (0.000414000) + (7.80 x 10-11) 40 14×1054 7.8 X 10-11 = 0.53 077X10 [5.3077x10 c) (9.612 x 5.00)- 35.20 -4+11 9612x5-35.2 48.06-35.20 $12.95 - (1.286 X10' b) 118 +3020.760 3020.760 + 118.000 13138.760 |scientific No *13138.761 C 7 -0.03906 11 3.906x10arrow_forward
- A trainee in a medical lab will be released to work on her own when her results agree with the accepted value of 13.95 mg/dL at a 95% confidence level. Results of a blood urea nitrogen analysis are shown below. Trainee: x= 14.57 mg/dL s= 0.45 mg/dL n= 6 samples Should the trainee be released to work alone? Explain your answer.arrow_forwardTrue/False Questions. Write False next to the following statements if the statement if false. Write true next to the following statements if the statement is false. 1) Numbers are usually written so that the uncertainty is in the last reported digit. 2) The decimal number 0.0000010 expressed in scientific notation is 1.0 × 106. 3) The decimal number 0.0210 expressed in scientific notation is 2.10 × 10-2, 4) The mass of an object, 4.55 x 10-3 g, expressed in decimal notation is 0.000455 g. 5) Zeros located between two numbers are not significant. 6). The imaginary decimal in the 24500 is located after the 5. 7). Significant figures are important in chemistry because significant figures reflect the degree of precision of the instrument used. 8) Zeros located after a number and after a decimal point are significant. 9) Trailing zeros at the end of a number which does not have a decimal are not significant. 10) The number 0.010100 has five significant figures. 11) The number 4,450,000.0…arrow_forwardg) A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of m = 0.400 fg (where a femtogram, fg, is 10- -15 and is swimming at a velocity of v = 6.00 μm/s, with an uncertainty in the velocity of 1.00 %. E. coli bacterial cells are around 1 μm (10-6 m) in length. The student is supposed to observe the bacterium and make a drawing. However, the student, having just learned about the Heisenberg uncertainty principle in physics class, complains that she cannot make the drawing. She claims that the uncertainty of the bacterium's position is greater than the microscope's viewing field, and the bacterium is thus impossible to locate. Part A What is the uncertainty of the position of the bacterium? Express your answer with the appropriate units. ► View Available Hint(s) ☐☐ Submit 00 xa μA Xh Ax = Value 016 Previous Answers X.10n Units X ?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY