Use the class data to solve both parts A and B please Class data Reaction 1) Ni(OH:)6^2+ with 4 en additions Initial temp: After 1st en: After 2nd en: After 3rd en: After 4th en: Observed color change to solution Reaction 2) Cu(OH2)6^2+with 4 en additions 23.11 24.64 26.16 27.70 27.82

Use the class data to solve both parts A and B please Class data Reaction 1) Ni(OH:)6^2+ with 4 en additions Initial temp: After 1st en: After 2nd en: After 3rd en: After 4th en: Observed color change to solution Reaction 2) Cu(OH2)6^2+with 4 en additions 23.11 24.64 26.16 27.70 27.82

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter13: An Introduction To Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 13.11QAP: The equilibrium constant for the conjugate acid-base pair HIn+H2OH3O++In is 8.00 10-5. From the...

See similar textbooks

Related questions

Q: Can you show the mechanism for those friedel-crafts alkylation reactions

A: Dear student i jave solved first three questions. Pls repost your remaining questions. Thanks

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

A: A question based on analytical separation that is to be accomplished.

Q: Place the steps regarding fat digestion and absorption in the correct order. The abbreviation TAG is…

Q: OH НО

Q: -phenyl- ga) al with the the final Intermediates Draw sequence below along reaction after each step…

A: The crucial intermediate for this given reaction sequence is a carbanion and it reacts with given…

Q: Find the boiling point of water is of an at the to p mt. Fijiż which has at mospheric pressure of…

Q: C1= concentration of ADP C2= concentration of CMP 1.6=10.4*10³*C1 + 8*10³*C2…

A: We can solve these equations by eliminating one of C1 and C2.

Q: For nitrogen gas the values of C, and C, at 25°C are 20.8 J K-1 mol-1 and 29.1 J K-1 mol-1,…

A: Here we have to determine the fraction of energy used to increase the internal energy of gas and the…

Q: (B) 80.1 when absorbs the same (تصبح الأكثر دافئا) gets the warmest (المواد) Which of the following…

Q: Please answer all the parts or leave for someone else. Name each of the following complex…

Q: Sodium phosphate dissociates when it dissolves in water. Na3PO4 (aq) --> 3 Na+ (aq) + PO43- (aq)…

A: Sodium phosphate is a strong electrolyte and it dissociates as follows: Na3PO4aq → 3Na+aq +…

Q: Question 29 What is the necessary reagent for the proposed transformation? NH₂ LOEN A. 1. LIAIH4 2.…

Q: The Electrode potential of a cell with Cu/Cu2+ (1M) and Zn/Zn2+(1M) in voltage is... (2 significant…

A: Given, The electrode potential of a cell with Cu/Cu2+ (1 M) and Zn/Zn2+ (1M) is:

Q: 4 in which of the following solutions would solid AgI be expected to ve least soluble at 25c?…

A: Common-ion effect: The solubility of a sparingly soluble salt is decreased when a common ion in the…

Q: A pH meter is calibrated using a pH 4.00 buffer with 174.48 mV, pH 7.00 with 0 mV and pH 10.0 buffer…

A: Given data: pH E (mV) 4 174.48 7 0 10 -174.48 To determine: The Molar concentration of…

Q: Consider a solution of 1.34×10-3 M hydrochloric acid. What would be the hydrogen ion concentration…

Q: Provide proper IUPAC name for the following compound:: S

A: Here we have to write the IUPAC name of the following given compound. The naming of compounds…

Q: Q7. How many moles of sulfur atoms are there in 3.0 moles of Al2(SO4)3? A. 12.0 B. 3.0 C. 4.0 D. 1.0

Q: Consider the following reaction at 34°C. 2 NOCI(g) 2 NO(g) + Cl₂(9 If 2.55 atm of NOCI are reacted…

Q: The concentration of iron in the body is only 0.00400% by mass. What is the mass of iron in a person…

Q: Question #1 ● ● ● # of moles of p-ethyl phenol used: (Show calculations) Amount (moles) of unknown…

Q: Question 9 What is the molecular geometry in a molecule or ion which is surrounded by two lone pairs…

Q: A.1.36 × 10% B. 1.36 x 10 Q3. Precision refers to how a measured number is close to A. Other…

A: Precision is a method to check the validity of the measured values of an experiment.

Q: 8) OH me H HCI, H₂O h How many stereoisomers are possible for this cyclic hemiacetal? OH

A: Since, Stereo isomers are those whose molecular formula same but rotation around plane polarised…

Q: 12. *Using any necessary reagents, show how you can accomplish the following multistep syntheses.…

A: Given all the compounds are synthesized by the different type electrophilic and neucliophilic…

Q: #B: Methyl acetate has methoxy, -OCH3 as the remaining of the alcohol part in the ester.…

A: Sponification of ester is the hydrolysis of ester in the presence of alkaline medium.The attack of…

Q: QUESTION 26 Given the electrochemical reaction shown, what is the standard free energy change (AG°)…

Q: Question 1 Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as…

A: Given, Cu2S(s) + O2(g) ----> 2Cu(s) + SO2(g) mass of copper (I) sulfide (Cu2S) reacts = 3 kg =…

Q: Absorbance 14 1.2 1 0.8 0.6 0.4 0.2 Curve 1 Curve 2 Curve 3

A: From Beer- Lambert's Law: A= Є c l where, A= absorbance, Є= molar extinction coefficient…

Q: Give a clear explanation handwritten answer....Give the IUPAC name of given bleow structure....?

Q: Unlike animal hormones, plant hormones can have multiple functions depending on which of the…

Q: The sugar industry uses barium hydroxide solution to refine sugar beets. What is the amount…

Q: Multistep Syntheses: Draw all the reagents as well as the major product of each step necessary to…

A: Given starting material is beta, gamma unsaturated carbonyl compound and name of the compound is…

Q: Suggest reagents for each of the following reactions: (a) (b) H3C H3C CH3 CH3 H3C H3C ОН + ОН H3C…

A: Acid anhydrides undergo hydrolysis to form carboxylic acids. Acid anhydrides react with Alcohols to…

Q: NV) Predict the products. cenade eurite 1. Mechanism ci mechandsome NH2NH2 Cao консаг

A: Aldehydes and ketones when heated with hydrazine and KOH give alkanes. This reduction is known as…

Q: Calculate the Molar absorptivity constant of a this metal complex solution read at 510 nm using a 50…

A: Here we are required to find the molar absorptivity of metal complex

Q: molar heat capacities for carbon dioxide at 298.0 K are shown below. Cv = 28.95 J K-¹ mol-1 Cp =…

Q: How many pounds (lbs) is 2052 grams? Note: 1 kg = 2.205 lbs

Q: Place the following in order of decreasing metallic character. P OK> P > As As K O As > K> P O As >…

A: Metallic character is determined by how easily it will loose electrons. In general on moving from…

Q: Write the chemical equations for the reaction of 2,4-Dinitrophenylhydrazine with Ethanal.

A: Given -> Reaction between 2,4-dinitrophenylhydrazine and ethanal.

Q: German pretzels are often poached in cold sodium hydroxide solution before baking, which helps…

Q: Define energy and explain the importance of energy in chemistry

A: Science is knowledge about facts that are based on observations of experiments.Chemistry is one of…

Q: Draw the carbonyl and Grignard necessary to prepare the following alcohol as a racemic mixture. List…

Q: When a 24.1 ml sample of a 0.352 M aqueous acetic acid solution is titrated with a 0.413 M aqueous…

Q: Provide proper IUPAC name for the following compound:

Q: 9. What type (class) of molecule is represented in the drawing below? The ring structure can open up…

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: Rate of reaction (nmol/min) 30 25 20 15 сл O Rate of Reaction (nmol/min) vs Temperature (°C) 10 20…

A: #Part-1: The optimal temperature for an enzyme's activity is the temperature where the rate of…

Q: During cold weather, calcium chloride is added to concrete to increase the speed at which the…

A: Here 100 ml samle of aqueous solution of calcium chloride is diluted to make volume 345 ml and the…

Q: What is the major product of this Michael reaction? i A B. 1. NaOH 2. 3. H₂O* O Le C. D.

A: -> First of all base can abstract most acidic hydrogen and form carbanion which acts as…

Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

Give answer part a and part b

Use the class data to solve both parts A and B please
Class data
Reaction 1)
Ni(OH:)6^2+ with 4 en additions
Part
Initial temp:
After 1st en:
After 2nd en:
After 3rd en:
After 4th en:
Observed color change to solution
Reaction 2)
Cu(OH2)6^2+with 4 en additions
Initial temp:
After 1st en:
After 2nd en:
After 3rd en:
After 4th en:
Part A)
Observed color change to solution
Enter the maximum en/Ni2+ ratio
Enter the maximum en/Cu²+ ratio
Enter the AH for en/Ni2+ reaction 1
Enter the AH for en/Cu2+ reaction 1
23.11
24.64
26.16
27.70
27.82
23.24
25.03
26.80
26.92
26.90

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

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

The equilibrium constant for the conjugate acid-base pair HIn+H2OH3O++In is 8.00 10-5. From the additional information in the following table, (a) calculate the absorbance at 430 nmand 600 nm for the following indicator concentrations: 3.00 10-4M,2.00 10-4M, 1.00 10-4M, 0.500 10-4 M, and 0.250 10-4M. (b) plot absorbance as a function of indicator concentration.
A 370.00 mL solution of 0.00190 M AB5 is added to a 200.00 mL solution of 0.00165 M CD2. What is pQsp for AD5?
Janine's research focuses on the ability of quercetin, a flavonoid and natural dye, to detect the presence of Co2+ in wastewater samples. She prepared a set of calibration standard solutions by adding an excess of quercetin to solutions of varying Co2+ concentration and maintaining it at pH 6.4 using a Tris-HCl buffer. The reaction yields a colored complex solution that has a maximum absorbance at 440 nm:Co2+ + 2 Quercetin --> Co(Quercetin)22+ The absorbance measurements for the calibration solutions prepared are shown in the tables; a cuvette with a 2.50 cm path length was used. [Co2+], in M Absorbance Color Wavelength range (nm) 0.05 0.100 Red 625-740 0.10 0.166 Orange 590-625 0.20 0.285 Yellow 565-590 0.30 0.367 Green 490-565 0.40 0.454 Blue 440-490 0.50 0.571 Violet 380-440 Part of her research is to determine the extent of Co2+ pollution in a stream near a pharmaceutical company. She obtained a 50.0-mL sample of the stream water and buffered it to pH 6.4. She…
A. Calgon conditioning can be done by____________________________.B. The colour of metal-EBT complex is ___________________________ .C. If P is less than half M (or T) then alkalinity is due to _____________________.D. Hydroxide alkalinity is determined by ____________________ indicator.E. If sample water contains Mg(HCO3)2 = 14.6 mg/lit, Ca(HCO3)2 = 16.2 mg/lit, MgCO3 = 8.4mg/lit. The temporary hardness present per litre of the sample is__________________.
A second calibration standard solution of an iron(III) salicylate complex was prepared in two steps. First, 12.9 mL of a 0.481 M stock solution was diluted with solvent to make 100.0 mL of the first calibration standard solution and, secondly, 86.6 mL of that first calibration solution was diluted to 100 mL to make the second calibration standard. What is the molar concentration of the second calibration standard solution? Report your answer to 3 significant figures.
A 2.559 g sample containing both Fe and V was dissolved under conditions that converted the elements to Fe(III) and V(V). The solution was diluted to 500.0 mL and a 50.0 mL aliquot was passed through a Walden 4+ reductor and titrated with 17.74 mL of 0.100 M Ce . A second 50.0 mL aliquot was passed through a Jones reductor and required 44.67 mL of the same Ce4+ solution to reach an endpoint. Calculate the percentage of Fe2O3 and V2O5 in the sample.
To measure the iron content of runoff from a ranch a 25.0 mL sample of run off was acidified with HNO3 and treated with excess KSCN to form a red complex. (KSCN itself is colorless.) The solution was then diluted to 100 mL and put into a variable pathlenght cell. For comparison, a 10.0 mL reference sample of 6.80 x 10-4 M Fe3+ was treated with HNO3 and KSCN and diluted to 50.0 mL. The reference was placed in a cell with a 1.00 cm pathlenght. The runoff had the same absorbance as the reference when the pathlenght of the runoff cell was 2.48 cm. What wa the concentraton of iron in the runoff?
For the aqueous [PbC1]2- complex K=2.5 × 10^15 at 25 °CSuppose equal volumes of 0.0014 M Pb(NO), solution and 0.20 M KCI solution are mixed. Calculate the equilibrium molarity of aqueous Pb2+Round vour answer to 2 sianificant digits
The basic salt Cr(OH)3 (s) was allowed to partially dissolveinto 1.50 L of solution that was fixed at pH=12.53. How many grams of theoriginal salt was dissolved at equilibrium? Molar Mass for Cr(OH)3=103 g/mol. Cr(OH)3(s) <=> Cr3+(aq) +3OH-(aq) Ksp=6.30*10-31
A 200.00 mL solution of 0.00105 M AB4 is added to a 270.00 mL solution of 0.00245 M CD5. What is pQsp for AD4? pQsp = -log(Qsp)
A standard solution was put through appropriate dilutions to give the concentrations of iron shown in the table that follows. The iron(II)-1,10-phenanthroline complex was then formed in 25.0-mL aliquots of these solutions, following which each was diluted to 50.0 mL. The following absorbances (1.00-cm cells) were recorded at 510 nm: Calculate the concentration, in ppm, of a sample with an abosrbance of 0.829. Fe(II) concentration (ppm) A510 4.00 0.160 10.0 0.390 16.0 0.630 24.0 0.950 32.0 1.260 40.0 1.580
How many grams of PbF2 (molar mass = 245.2) will dissolve in 700 mL of 0.60 M NaF solution? The Ksp for PbF2 is 2.69e-08.