None Perform the calculations and determine the absolute and percent relative uncertainty. Express each answer with the correctnumber of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations.[8.47 (±0.06)]1/3=2.0398Incorrect Answer0.005absolute uncertainty: ±Correct Answerpercent relative uncertainty: ±0.2Correct Answer0.817log [6.56 (+0.05)] =Correct Answerabsolute uncertainty:±0.00038Incorrect Answerpercent relative uncertainty 土0.046Incorrect Answer28

PROBLEM 1: Step 1: Calculate the ValueThe cube root of 8.47: (8.471/3)=2.04So, the answer here 2.04…

Answered: Perform the calculations and determine…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Perform the calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations. [9.8 (±0.3) — 2.31 (±0.01)] 8.5 (+0.6) = absolute uncertainty: + 0.76 Incorrect percent relative uncertainty: 0.88 + 86.36 Incorrect 9.2 (+0.4) × ([5.4 (±0.3) × 10−³] + [5.6 (±0.1) × 10-³]) = Incorrect %
To prepare a solution of KCl, you weigh out 1.5672 (± 0.0003) g and dissolve it in a volumetric flask of 250.00 (±0.50) mL in volume. Express the molarity of the solution and its uncertainty with appropriate number of significant figures. (Formula mass of KCl is 74.551 ± 0.004 g/mol)
None
5
The combustion of ammonia in the presence of excess oxygen yields NO2 and H20: 4 NH3 (g) + 7 02 (g) → 4 NO2 (g) + 6 H2O (g) The combustion of 174 g of ammonia consumes g of oxygen. Atomic weights: N=14.01, H=1.01, O=15.99. Input values only with 2 decimal places.
548.8 + 0.2 x 55.4±0.6 (1142.9 ± 0.6 – 171.0±0.5) ANS: Absolute uncertainty: Percent uncertainty:
Part B O2 (8) + 2H20 (1) + 2Cu (s)+40H (aq) +2Cu²* (aq) Express your answer using two significant figures. K- 8.3 • 1016 Submit Previous Answere Request Answer X Incorrect; Try Again; 4 attempts remaining • Part C Bra (1) + 21 (aq)→2Br (aq) + I2 (s) Express your answer using two significant figures. K-1.73 • 10 51
4
A Grade A buret is used in a titration experiment. Calculate the uncertainty e of the volume delivered by a buret based on the data below. The typical uncertainty of a Grade A buret is e = 0.02 mL. initial reading = 0.25 mL final reading 10.22 mL The uncertainty of the volume delivered by the buret is ± mL. [Just write the numerical answer. Use, if necessary, a "cosmetic zero" when writing numbers less than 1; e.g. "0.1234", not ".1234"]
During a titration experiment, 50.00 mL of a certain solution needs to be transferred to an Erlenmeyer flask. To measure the volume, a student used a calibrated 10-mL pipette five times. If the pipette delivers an actual volume of 9.98 mL with an uncertainty of ±0.02 mL, what will be the uncertainty in the final volume?
Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula CH20+1COOH where n is an integer than ranges from 1 to 18. What would be the %C by mass if n = 6 ? Atomic weights: C=12.01, H=1.01, O=15.99. Input values only with 2 decimal places. Do not include the units. Add your answer
In the Analytical Chemistry – I laboratory Ms. Bushara Al Busaidi wanted to prepare NaCl solution. She has dissolved 2.634 (±0.002) g of NaCl in a volumetric flask whose volume is 100.00 (±0.08) mL. Calculate the molarity of the NaCl solution and express your answer with proper terms of absolute and percent relative uncertainty with reasonable number of significant figures. The Molar mass of NaCl is 58.443 (±0.001) g/mol

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