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UV–visible spectrophotometry refers to absorption spectroscopy in portions of the ultraviolet and…

Answered: Absorbance taken Question A.: 2. 3, 4.…

Absorbance taken Question A.: 2. 3, 4. readings Volume SmT 10 ml is mi 20 ml a Plo + absorbance for these Absorbance. against 0,076 0,16 9 9185 0,234. Calibration curve concentration of

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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LTE+ 74% 5:38 PM KB/s 200406_Homework..mdahl_Chapter 04 - Saved Homework (Chapter 4) 2019. 4. 6 Example 4.1 Calculate the molarity of a solution preparcd by dissolving 11.5 g of solid NaOH in enough water to make 1.50 L of solution Example 4.2 Calculate the molarity of a solution prepared by dissolving 1.56g of gascous HCl in enough water make 26.8 mL of solution. Ехample 4.3 Give the concentration of each type of ion in the following solutions: (a) 0.50 M Co(NO:) (b) 1 M Fe(ClO4)3 Example 4.4 Calculate the number of moles of Cl ions in 1.75 L of 1.0 x 10-3 M ZnCl,. Ехample 4.5 Typical blood serum is about 0.14 M NaCl, What volume of blood contains 1.0 mg NaCl? Example 4.6 To analyze the alcohol content of certain wine, a chemist needs 1.00 L of an aqueous 0.200 MK CrO (potassium dichromate) solution. How much solid K CrO, must be weighed out to make this solution? Ехample 4.7 What volume of 16 M sulfuric acid must be used prepare 1.5 L of a 0.10 M H,SO, solution? Ехample 4.8 Using the…
Standardization Answer the concentrations in 3 significant figure. The tolerance or error should follow the decimal place of the value. You can use scientific notation using "e". Example: 0.0010 = 1.0e-3 Primary Standard: Na2CO3 Formula Mass of 1º Standard: 105.99 g/mol Purity of 1º Standard: 95% Instrument used: Analytical Balance Trial 1⁰ Standard weight, g Net vol. of HCI, mL M HCI of Hydrochloric Acid Solution Average M HCI 1 0.0504 + 0.0002 ± 2 0.0510 (same as 1) 18.00 ± 0.14 18.30 ± 0.14 17.90 +0.14 ± 3 1+ 0.0501 (same as 1) ±
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
rofiles Tab Window Help D☎ ☎ a 8 O What volume of a 0.352 M hyd x + l?deploymentid=5735112480241329813180832311&eISBN=9781305862883&id=1707786068&snapshotid=33225... ✰ - Cengage Learning XAM HOMEWORK Module 9 ack APR 17 X Submit Answer on Concentrations: This is group attempt 1 of 10 In the laboratory you dissolve 15.4 g of zinc bromide in a volumetric flask and add water to a total volume of 250 mL. What is the molarity of the solution? MindTap - Cengage Learning X Use the References to access important values if needed for this question. What is the concentration of the zinc cation? tv References What is the concentration of the bromide anion? I M. Autosaved at 10:58 PM M. M. ZAG Mon Apr 17 W 5.3 i 0 > Regenerate Grou Ne:
What is the bsolute uncertainty in the concentration of the diluted solution? 0.363 (10.004) Mx15.00 (20.03) mL = 0.054 45M (unrounded) 100.00 (20.08) mL A. +0.01 M B. 10.000 6 M C. 10.004 M D. 10.09 M E. 10.000 01 M
Question 4 (Problem 2.13) Make an accurate plot of Fe versus a for a Mg -0 pair. Consider the range of a from 0.2 to 0.7 nm. Hint you should calculate the Fc for different values of a (0.2, 03,0.4..0.7) Given q-1.6e-19 C V-9e10 V m/C Sofrtom
Pls solution needed urgently Both questions (9,10)
5. The percent relative uncertainty of a burette reading of 24.35± 0.02 is: a. 0.00082% b. 0.0008% c. 0.08% d. 0.082% M JA
Search he web.. H Take T X G What is th P Pearson S b Answered M Inbox (1,0 er 1 0 8 https://bblearn.rcsj.edu/webapps/assessment/ Question Completion Status: 3. 50 70 100 110 120 130 14G 18 QUESTION 3 3.478 g x 1.164 g What is the best answer to report for -0.116 g/mL g/mL? 2.00 mL O a. 1 g/mL O b.1.904 g/mL Oc.1.90478009 g/mL O d. 1.9 g/mL Oe1.91 g/mL QUESTION 4 The state of matter for an object that has both definite volume and definite shape i a. gaseous state b. elemental state OC. solid state Od. mixed state e. liquid state Click Save and Submit to scue and subrt CackSae74nswers to save al cnswers. Type here to search
Calculations for standardization of sodium hyroxide Mass of KHCgH404 (9) Moles of KHC₂H404 used (mol) Moles of NaOH reacted (mol) Final buret reading of NaOH (mL) Initial buret reading of NaOH (mL) Volume of NaOH solution used (mL) Volume of NaOH solution used (L) Concentration of NaOH (M) Trial 1 0.424 .0021 40.89 19.29 21.60 .0216 Trial 2 0.439 .0021 22.09 0.95 21.14 .02114 Table view List view Trial 3 0.449 .0022 49.10 22.09 27.01 .02701
The Ksp of Al(OH)3 is 4.6*10-33, and the Ksp of Zn(OH)2 is 3*10-17 1) Can Al3+ be separated from Zn2+ by the addition of an NaOH solution to an acidic solution that contains 0.350 M Zn2+ and 0.150 M Al3+ ? If can't leave answer fields in parts 2, 3 empty. (Answer as yes or no) 2) At what hydroxide ion concentration will the second cation precipitate? (Answer must be mol/L) 3) What is the concentration of the other cation at that hydroxide ion concentration? (Answer must be mol/L)
Compounds Mass Ferrocene used 90 mg = 0.09g Acetic anhydride used 0.35 mL ( 380 mg) = 0.035 g Phosphoric acid used 0.1 mL (170 mg) = 0.17g Product obtained 90 mg = 0.09 g Compute percent yield