Problem Solving. Show all pertinent computations. Calculate the pH of a solution containing 0.75 M lactic acid (ka = 1.4 x 104) and 0.25 M lactate. sodium

Q: if an acidic functional group is added with a basic functional group, the resulting structure will…

A: Here we have to provide limitation of  acidic functional group is added with a basic functional…

Q: Based from the given problem, What is the meq of the tartaric acid (C4H606)? *

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Q: explain why you need to standardize NaOH solutions

A: Please find the below attachment.   Please rate helpful...........................   Thank you

Q: Using the Kb from the previous question, what is the pH of an 0.0100 M solution of sodium benzoate.…

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Q: Please help with the last 3 part (18,19,20). Explain. Thanks

A: Enantiomers : These are the isomers having same structural formula but their mirror images are non…

Q: II PROBLEM SOLVING A. The [H3O*] of a solution is 1.3 x 10-5, Calculate the; 11. JOH- 12. pH and,…

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Q: Problem Solving. Solve the following problems, use GRESA format in answering A 0.0001 molar basic…

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Q: What is the relationship between the strength of an acid/base and its conjugate? directly…

A: The acid are the compound which provides hydrogen ions or accept electron. However, base will accept…

Q: Problem Solving. Solve the following problems, use GRESA format in answering. 1. In a 0.1000 M…

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Q: Construct the expression for Kb for the weak base, C₅H₅N. C₅H₅N(aq) + H₂O(l) ⇌ OH⁻(aq) + C₅H₅NH⁺(aq)

A: Kb is the dissociation constant for the base - it tells about the basic strength of the base . more…

Q: O Determine if the following salts are acidic basic or neutral. The following link has a list of…

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Q: What is the benzoate ion concentration in a 0.0500 M solution of benzoic acid (C6H5COOH)?  (Hint:…

A: Given: 0.0500 M solution of benzoic acid.

Q: Construct the expression for Ka for the weak acid, HC,H,04. HC,H,0,(aq) + H,0(1) = H,0*(aq) +…

A: Given, given chemical reaction as follows,HC9H7O4(aq)+H2O(l)⇌H3O+(aq)+C9H7O4-(aq)we are asked to…

Q: Q2 Which of the flowing is more acid? Give justifications for your a соон соон NO: OCH, a) FCH;CO,H…

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Q: Show all steps: What is the percent ionization of a 1.38 mol/L weak base if its Kb = 2.7 x 10-6?

A: Given, concentration of weak base = 1.38 mol/L = 1.38 M  Kb, = 2.7 x 10-6  % Ionization = ?

Q: 7-43. Supply the missing data in the table below. Molar Analytical Concentration, cT Acid (cr = cHa…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Consider the species CH3O-, NH2-, and CH3COO-. Write and rank these ion’s conjugate acids in the…

A: The answer to the following question is given as -

Q: What is a weak acid? Arrange the following acids in aqueous solution in order of increasing acid…

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Q: Calculate Kh using the equations, whichever is applicable. If the ion is a conjugate acid of a weak…

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Q: What is the pH of a 0.03 M weak acid solution? The K, of the said acid is 5.0 x 10. Note: Do not use…

A: Given :-  Concentration of weak acid = 0.03 M  Ka of acid = 5.0 × 10-5  To calculate :-  pH of…

Q: What is the pH of a 0.300 M solution of HCN in which the [CN-] has been adjusted to 0.0100 M?…

A: The relation between pH and [H3O+]is:   The dissociation of HCN in water is shown below:

Q: B: What is the pH of 0.6 M NHẠC1 solution? Discuss your results. (Kb of NH= 1.8 x 105) NH4* + H2O+…

A: In the given question we have to calculate the pH of 0.6 M NH4Cl Solution. we know that the ammonium…

Q: If the K, of a monoprotic weak acid is 7.1 x 10-°, what is the pH of a 0.16 M solution of this acid?…

A: The weak acid --> HA Dissocaition of HA dissociates occurs as:                     HA ----->…

Q: The Ka value for benzoic acid (C6H5COOH) is 6.3×10^−5 and for phenol (C6H5OH) the value of Ka is…

A: The dissociation constant of benzoic acid (C6H5COOH) and phenol (C6H5OH) can be written as follows:

Q: What is the pH of 0.6 M NH4Cl solution? Discuss your results. (Kb of NH= 1.8 x 10-5) NH4++ H2O↔…

A: pH is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are…

Q: Show your work for the question above: "12. What is the pH of a solution in which [OH] = 0.000005…

A: Given in the question , [OH-1] = 0.000005 m pH = 14 + log[OH-1]

Q: What is the ph of a solution containing 9 grams of of hci (mw 36 amu) dissolved in 50 ml of water?

A: pH = - log [ H+ ]  In order to calculate the pH concentration of H+ must be determined  HCl --->…

Q: Complete the following acid-base reaction by giving the structure of the conjugate acid anc…

A: Interpretation: We have to write the acid - base reaction.

Q: To the nearest whole number, given a 0.5 M solution of a compound with a pKa of 5, what is the pH of…

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Q: (a) label: NH3 (d), Keq is (circle one): greater than one or less than one conjugate base conjugate…

A: To complete the proton transfer reaction below by (a) labeling the acid and the base, (b) in the…

Q: a below, what is the hydroxide ion concentration (M) in the trial 1

A: Volume of NaOH is 9.0 mL Volume of crystal violet is 9.9 mL Molarity of NaOH is 0.019 M [ OH ] = ?

Q: why are the values of E on the two bases related to each other in such a simple way

A: When a metal is put inside salt solution of its own ions then it acquires a positive or a negative…

Q: What is the pH of a solution that has a [OH-] of 8.5 x 10-4 please show work

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Q: Try the following problem then post a readable scan or photo of your work in Blackboard under the…

A: Solution: The conjugate base for given compound are provided below:

Q: The OH ion concentration in a dilute ammonia solution is 0.0025 M.Calculate the pH of the solutions

A: Given data contains, The concentration of OH- is 0.0025 M.

Q: 1. Complete the following table to estimate the wavelength of bromocresol green under the fol-…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Volume NaOH (added). pH of analyte 0.00 mL _1.00 10.00 mL 1.23 20.00 mL _1.54 30.00 mL _2.20…

A: Graph can be used to represent the relation between two variables over two axis, X and Y axis.…

Q: Determine the pKa of your weak acid, acetic acid. Show the extrapolation of the pKa on your graph…

A: 4) The titration curve given is as shown below.

Q: 1. Place the following 0.10 M solutions (aq., 25 oC) in order of increasing pH: Format: R < S < T <…

A: pH= -log[H+], and for weak acid the it will not dissociate completely, so [H+]= (c.Ka)½ Where Ka is…

Q: Calculate the pH of a 0.030M LiOH solution. Show all work below

A: Solution : pH       pH is a quantitative measure for the acidity or basicity of the solution. It is…

Q: Give the hydrosen Concentration of a with pH = 12.57? PH ion Solution

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Q: What pH would you make the water layer in order to cause both compounds to dissolu Water should have…

A: The pKa is the pH value at which a chemical species will accept or donate a proton. The lower the…

Q: 100.0 mL at pH= 12.000, [conj.base] = 0.500 M conjugate acid: HPO4 ^2- conjugate base: PO4 ^3-…

A: Buffer is a solution that resists the change in pH when small amount of acid or base is added to it.…

Q: % A- vs pH 100 90 80 70 60 & 50 40 30 20 10 ... ... .. 8. 10 11 PH Use the data above to calculate…

A: The %A- v/s pH plot given is,

Q: If the Kb value for a weak base is 2.6*10^-4, what is the value of its conjugate acid?

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Q: Ranking lonic Solutions: modified MC Chem1B Spr21 Page | 5 D Predict the ranking of the pH for the…

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Q: PROBLEM: Calculate the pH during the titration of 40.00 mL of 0.1000M propanoic acid (HPr; Ka =…

A: we need to calculate pH for the given titration

Q: Calculate theoretical pH for each solution recorded in Data Table 1. Remember for weak acids (and…

A: pH is defined as negative logarithm of concentration of hydrogen ions. pH = - log[H+] Similarly, pOH…

Q: Answer briefly. If you have 100 mL of a 0.1 M buffer made of NaH2PO4 and Na2HPO4 that is at pH 6.8…

A: Given,  Buffer is made from NaH2PO4 and Na2HPO4 .  Volume of the buffer = 100 mL  Molarity of buffer…

Q: If a solution has a hydroxide ion concentration of 1x10-10, the pH of the solution is? Show work.

A: Given, [OH-] = 1 x 10-10 We know, PH = -log [H+] POH = -[logOH-] POH = - log [1 x10-1] POH = - (log…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.