What is the unit of the gradient calculated from the Arrhenius plot ?

Q: Differentiate between diphenylamine redox indicator and the following redox indicators…

A: Interpretation -  To differentiate between diphenylamine redox indicator and the following redox…

Q: Compare the rates of change at the different points of the pH scale. a) Does adding two to a pH at…

A: pH is the measure of determination of acidity of a system on the basis of the presence of…

Q: Part A - Reactions of Carbon Dioxide Gas 1. Place a small lump of dry ice into a large test-tube. To…

A: Dry Ice - It is basically solidified carbon dioxide. So basically Carbon -Dioxide was dissolved in…

Q: Name: Date: Section: Prelaboratory Assignment: Qualitative Analysis Group III Cations 1. Prepare a…

A: The ammonium  chloride and ammonia is used  for detection  of ions .

Q: Calculate the molar concentration of Mn if the p-function is equal to 0.0025

A:

Q: NH, (aq) RBOH(aq) HCIO, (aq) r(OH), (aq) Lowest pH Answer Bank

A: As we know,  Base solution pH greater than 7.  Acid solution have pH less than 7 Neutral solution…

Q: Titration Part Molarity HCI Initial Buret Final Buret Volume of HCI Reading Reading Trial 1 6 M…

A: 4) Since, Ca form calcium hydroxide, Ca(OH)2. Ca (OH)2 = Ca2+ + 2OH- Since, 1 mol of Ca2+ is…

Q: Alizarin yellow R, Ka=7.9×10−12, is yellow in its protonated form (HX) and red in its ionized form…

A: Given, Ka = 7.9*10-12. It is yellow in color in protonated form (HX) and red in color in ionized…

Q: Acetic acid (concentration 0.00128 mol / lit) has an equivalent conductivity value of 0.04815 ohm^-1…

A: Dissociation constant of weak acid, acetic acid can be determined by finding the value of degree of…

Q: The given data is based on the following chemical reaction: 31 (gg) + H;O2(gg) + 2H¿O*(gg) –→I; (ag)…

A: Rate Law Expression: It is the equation or relation in which the rate of the reaction is directly…

Q: Name two differences between the inductive effect and the resonance effect.

A: Name two differences between the inductive effect and the resonance effect.

Q: For the reaction Ni(s) + Pb2+(aq) → Ni2+(aq) + Pb(s), what is the value of ΔrG°?

A: ∆rG° Change in free energy :-         Change in free energy of a reaction is the amount of energy…

Q: Compare the size of the change in pH value when HCl and NaOH are added to water vs. the size of the…

A: Buffer solution :  A buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: During the demonstration, before each metal was added to the water, a drop of an acid-base…

A:

Q: Why do we use the maximum of the first derivative curve or the zero crossing of the second…

A: A question based on pH titration, which is to be accomplished.

Q: In LIEBERMANN-BURCHARD TEST,  Why must one take the precaution of using only very dry containers…

A: Given Test LIEBERMANN-BURCHARD TEST Precaution taken using only very dry containers and equipment…

Q: Write expressions for the autoprotolysis of a. H2O b. CH3COOH c. CH3NH2 d. CH3OH

A: Autoprotolysis is self-ionisation of the molecules.       a) H2O = The expression for the…

Q: The given data is based on the following chemical reaction: 31 (ag) + H;O¿(gg) + 2H3O*(gg) → I;(qq)…

A: The rate equation for the given data can be represented as,                                   Rate =…

Q: Calibrate the pH meter @ pH 4, 7 and 10.

A: Interpretation: To calibrate the pH meter @pH 4, 7 and 10.

Q: Suppose you did the titration three times and got the following data for the concentration of NaOH:…

A: The question is based on the concepts of analytical chemistry. we have to determine the relative…

Q: Ме N. Me solvent, 0 °C to reflux then Ме. N. Ме Me Me + 'N' CI "Ме Ме 42 Me' Lewis acid , 0 °C 41 25…

A: Organic reaction mechanism.

Q: Distinguish the terms end point and equivalence point.

A: Equivalence point comes before the end point. At equivalence point, the number of moles of titrant…

Q: Another phosphate buffer system known as the Phosphate buffer system operates in the internal fluids…

A: Buffer is a solution that tends to resist the change in pH of solution when small amount of acid or…

Q: Write the Kb expression for the following ions: OAc-

A: An acid is a substance that gives  ions in its solution whereas a basic substance gives  ions in its…

Q: Given the chemical equation for the anthocyanin extract of red cabbage as an indicator. HIn + H20 S…

A: Indicator is a compound that indicates the acidic and basic character of the solution. These are…

Q: The given data is based on the following chemical reaction: 31(ag) + H,0,(ag) + 2H,O"(ag) – I (aq) +…

A: Chemical kinetics is the study of the reaction that how fast or slow a reaction is taking place. The…

Q: By what factor does [H+] change for a pH change of (a) 2.00units, (b) 0.50 units?

A:

Q: Determine which method(s) could titrate bromide ions: Volhard Mohr Fajans All of the above

A: Volhard, Mohr and Fajans are argentometric titrations used to determine or analysis of silver (Ag)

Q: What is the turnover number of penicillinase under these conditions? (This is the question I need…

A:

Q: Calculate the concentration of A when chemical AB is dissolved in pure water. Ksp =  0.00001331…

A: AB2 dissociates in an aqueous solution when it is dissolved in water, as follows: AB2s  ⇔ A2+aq +…

Q: What, precisely, is Redux

A: Redux is a predictable state container for java script apps . It is used to store the global central…

Q: What do you call the number that summarizes the factors affecting the particle size of a precipitate…

A:

Q: The results of your Solubility of a Salt experiment led to the following linear regression equation…

A:

Q: 3. Two unlabelled solutions are at pH = 2.0 and pH = 4.0. Becky does not know which one is which. In…

A: Methyl orange and Bromocresol green both are indicators to determine which solution is acidic and…

Q: Write the equilibrium-constant expression Kc for Cd2+(aq) + 4 Br-(aq) => [CdBr4]2-(aq).

A: The equilibrium constant (Kc) is the ratio of the equilibrium concentrations of products over the…

Q: You run a DEAE-cellulose column to purify anions from a biological sample. Which approach, from the…

A: We are running the column chromatography of DEAE-cellulose to separate anions. We are trying here to…

Q: calculate the neutralization equivalent for malonic acid and maleic acid

A: For an acid, neutralization equivalent is determined as- Neutralization Equivalent = Molecular…

Q: Which type of indicator is used in bromatometry: irreversible Red/Ox indicator; adsorption…

A: Option 3 is the correct Choice.  Bromatometry falls in the class of redox titration.

Q: A 2.5 M solution of a weak acid is prepared. Using a pH meter, the pH is measured to be 5.1.…

A: Concentration of weak acid [ HA ] = 2.5 M pH of solution = 5.1 We need to determine Ka for acid.

Q: Which type of indicator is used in thiocyanate-metry metallochrome indicator; irreversible Red/Ox…

A: The correct option is given in next step:

Q: Using the data given, fill in the following table of ion concentrations and pH values. Remember that…

A: pH greater than 7 means solution is basic and pH less than 7 means solution is acidic.

Q: Which of the following is incorrect: a. General steps in qualitative analysis include: Method…

A: Analytical chemistry is a measurement science. It consists of a set of powerful ideas and methods…

Q: Part A - Reactions of Carbon Dioxide Gas 1. Place a small lump of dry ice into a large test-tube. To…

A: According to the given question, first we have to consider the reactions of carbon dioxide and then…

Q: What is the mechanism of the phosphate buffer action? Write down the equations of these reactions.

A:

Q: The pH change during a reaction will be followed by inserting a pH probe into a relatively small…

A: The pH change during a reaction will be examined by inserting a pH probe into a relatively small…

Q: In the laboratory, a general chemistry student measured the pH of a 0.590 M aqueous solution of…

A: Given: The concentration of ethylamine in the aqueous solution is 0.590 M. The pH of the solution is…

Q: A student recorded the following end-point volumes in an acid-base titration: Trial Number Volume…

A: Mean is the average of a finite number of data. Basically it is defined as the sum of the values…

Q: Which type of indicator is used in iodometry adsorption indicator; irreversible Red/Ox indicator;…

A: in iodometry, we use the starch as an indicator.

Q: Potassium hydroxide

A: Potassium tert-butoxide is used as a Strong non-nucleophilic base in organic…