Observations from the Hofmann Electrolytic Cell Initial pH of the electrolyte solution: 5.50 Starting time: 12:00 Ending time: 12:40 (2400 seconds) Cathode volume: 40mL pH: 11.79

Q: Number

A: Carbonic Anhydrase is used for the reduction of CO2 to Carbonic acid.

Q: Number 6

A: Meters (m) and miles (mi) are the units of length. The relation between meter and mile is expressed…

Q: 6. Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density…

A: Density = 12.85 g/L

Q: 9. If you pour 60 grams of KCl into 100 g of water at 70°C, and stir vigorously, which type of…

A: 9. Given information,   Mass of KCl = 60 g   Mass of water = 100 g   Temperature = 70oC

Q: 9. a. Calculate the pH of a solution that is 1.00 M HNO₂ (Ka = 4.00 x 10-4) and 1.00 M NaNO₂.

A:

Q: 6. Calculate the percent dissociation of 0.10 M hydrazoic acid (HN3, Ka= 1.9 x 10-5). Recalculate…

A: Answer: Hydrazoic acid is a weak acid and we have to study the common ion effect on its dissociation…

Q: 1) e,f,g

A: Coordination number is the total number of ligands that forms bond with the metal atom. (e) In…

Q: 7. At 25°C, an aqueous solution of AlBr3 will have: (a) pH >7 (b) pH = 7 %3D (c) pH < 7

A:

Q: 1. The noble gas, neon, has three isotopes of masses, 22, 21, and 20. If the isotopes have the…

A: Average atomic mass calculation: (1) Consider the given information is as follows;…

Q: 1, 2 and 4

A: 1. Total molecular mass of Sb2S3 = 339.7 g  Mass of Sb = 121.76 g Amount of ore = 1kg = 1000 g 2. C…

Q: ow many grams of Ag(s) (107.9 g/mol) could be plated out on the cathode of an electrolytic cell by…

A:

Q: 1 and 2

A: A polar molecule is a molecule where the polar bonds are asymmetrically arranged (the dipoles do not…

Q: 5 A,B,C,D

A:

Q: 6. If there is a direct relationship then k =P/N. If there is an inverse relationship, then k= P x…

A: Boyle's law: At constant temperature, the pressure of given mass of a gas is inversely proportional…

Q: Calculate Change of Enthalpy- use Table A-14 1. Calcium carbonate breaks down into calcium oxide and…

A: The enthalpy of a reaction can be determined by the enthalpy of the formation of reactant and…

Q: 7. When nitromethane, CH3NO2 (molecular mass = 61.05 g/mol) is burned the following reaction occurs:…

A:

Q: Consult a table of standard reduction potentials and determine which of the following reactions are…

A: Standard electrode potential is the electrode potential that is measured under standard conditions…

Q: How many chirality centers are there in the following molecule? H₂C CH3 go CH₂

A: Chiral centre is a centre which is attached with four different types of group.

Q: 1) a,b,c,d

A: Coordination number is the total number of ligands that forms bond with the metal atom. (a)In…

Q: 1. If a 2.5 A current is run through a circuit for 35 minutes, how many coulombs of charge moved…

A: 1. Charge (Q) = i x t       where i = current in amperes                 t = time in seconds…

Q: Number 7

A: The unit conversion of has to be found.Given,Weight of truck is 1.45×103 pound

Q: QUESTION 11 The tail of the curved arrow must start at electron density and the head must end at O…

A: If you are mentioned number 11. So that I am answered that one question only.

Q: D Question 3 Predict the pH range of a 0.500 M solution of LICIO4 need more information O neutral O…

A: pH range of a salt solution can be figure out from the composition of salt.

Q: A karat is a measure of gold purity. By definition, 24-karat gold is pure gold. However, gold is…

A: 5) Given: Mass of ring = 6 g. And mass percent of gold in ring = 90 %.

Q: Inoitosidua omoz slupeilw zi) OXto 286M Stoichiometry: Mass-Mass Experimentation has shown that…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Atomic mass :  The mass of 1 mole of atoms of an element…

Q: 11) An athlete in El Paso takes a deep breath, inhaling 1.99 L of air at 25 °C. If the average…

A:

Q: 11) Show how the following product can be made from benzene. AlCl3 1 2) / 3) 2₂ (H₂), heat, HCI

A:

Q: Write the overall balanced nuclear equation for the decay series of 232Th to 208Pb through alpha and…

A: Given conversion is :  232Th to 208Pb through alpha and beta decay  a). Overall balanced chemical…

Q: Ion Lewis Dot Electronic Molecular Geometry Polar Molecule Structure Resonance Structures or Isomers…

A:

Q: 6. What is the frequency of a light source that has a wavelength of 620 nm? What is the energy this…

A: Wavelength of the wave = λ= 620 nm = 620×10–9 m We need to calculate frequency and energy of this…

Q: 1.13 A one-particle, one-dimensional system has the state function = (sin ar) (2/mc²)¹/4²¹² + (cos…

A: A particle in a 1-dimensional box is a fundamental quantum mechanical approximation describing the…

Q: Design syntheses to produce the following compounds starting with any alcohol with 3 or less carbons…

A: We have to design the synthesis for the following given compounds with any alcohol with 3 or less…

Q: 5) Why does copper (Cu) easily lose and electron from its s subshell instead of its d shell when…

A: To answer 5 th question we first need to determine configuration of copper . The half filled and…

Q: 4. Balance the following redox equation by the oxidation number method: Cl2Osg + COg Cl + CO28…

A:

Q: quesion 2

A: Previous answer is correct the only wrong thing is in the final answer ....units of heat flows into…

Q: Design syntheses to produce the following compounds starting with any alcohol with 3 or less carbons…

A:

Q: 1. The following combinations of quantum numbers are not allowed. Correct each set by changing only…

A: For an electron four quantum numbers are possible. They are - n = principal quantum number.…

Q: Reactants to be combined for each reaction 4. potassium chloride + sodium phosphate Observations: No…

A: The objective of the question is to tell whether the given solutions turn cloudy and predict the…

Q: Number 1

A: Since silver nitrate is completely soluble in water Hence as per the solubility reaction AgNO3…

Q: 9. How many grams of a gas can occupy a cylinder with a diameter of 1.5 dm and a height of 8.00 in…

A: 9. Given that : Diameter of the cylinder = 1.5 dmHeight of the cylinder = 8 inchDensity of the gas =…

Q: 1₁ -2.02 -loy (2.012) = 2 + x y 2012 2012 201 CH LPH-0.304 6. Sodium azide, NaN3, is sometimes added…

A:

Q: 1,

A:

Q: 1. In which of the following reactions would you expect the orientation factor to be more important…

A: To determine which of the below reactions the orientation factor is more important in leading to the…

Q: What's More Answer the following and write your answers on a separate sheet of paper. 1. Calculate…

A:

Q: 3) a. Write a detailed mechanism for the following reaction using curved arrow notation он Brz b.…

A: Since you are posted with multiple questions. But you are mentioned answering 3. (a) and (b) only.…

Q: 1. Predict the major product for the reaction shown here. Draw the complete detailed mechanisn for…

A: There are many bases in organic chemistry. When bases are treated with carbonyl compounds, bases…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.