7. Define back-titration. What is the concept behind this method?

Q: What are alums? Give examples other than potassium alum.

A: Double salts are the salts that dissociate into all its constituent ions completely. Example is Mohr...

Q: 1. What is the OH- concentration in a solution that is (3.30x10^-1) M in HCl? Express your answer to...

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

Q: * 00 Be sure to answer all parts. 31 kg) and a proton Compare the wavelengths of an electron (mass =...

A:

Q: Calculate the [H3O+] of the following polyprotic acid solution: 0.360 M H3PO4. Calculate the pH of ...

A:

Q: The equilibrium constant for the reaction A(g) B(g) is more than one. What can you conclude about AG...

A: For any reaction at equilibrium the change in Gibbs free energy is given by, ΔGorxn= -RT lnK# where,...

Q: 11) What is the name for this compound? он A) cyclopentanol B) cyclohexanol C) cyclobenzenol D) phen...

A:

Q: Pb(NO3)2 + 2 NaI  PbI2 + 2 NaNO3 a. If I start with 25.0 grams of lead (II) nitrate and 15.0 grams ...

A: Since the given problem have multiple subpart but as per bartleby guidelines the answer for first th...

Q: Write the mechanism of 2-methyl-2-butene added ICl.

A:

Q: Question 3: Assume that we are working in body centered cubic structure, draw the planes (100), (010...

A: We have body centered cubic structure.

Q: Draw a plausible mechanism for the [2,3] sigmatropic rearrangement shown below. (DBU is a base; Bn -...

A:

Q: Be sure to answer all parts. Write the reaction rate expressions for the reaction below in terms of ...

A: Given :-  The given reaction is 2H2(g) + O2(g) → 2H2O(g)  ------------------------------

Q: When do we need to perform a double-indicator titration procedure?

A:

Q: What is the specific heat of a substance in kJ/kg K that absorbs 2500 joules of heat when a sample o...

A:

Q: The process of a cooked hamburger becoming raw is spontaneous. True or False?

A: There are two type of reaction occurs in chemistry: spontaneous and non spontaneous reaction.

Q: A student is performing a titration experiment to determine the concentration of a Nitric Acid (HNO3...

A: First we would write a reaction between KOH and HNO3 .  The reaction between KOH and HNO3 is given a...

Q: 2. Provide mechanistic explanations for the following observations (a) HCI CI (b) CI HCI

A:

Q: Question 1. The variation of vapor pressure with temperature for n-hexane and n- heptane is as follo...

A:

Q: Consider the reaction at 298 K: 2H2S(g) + SO2(9) →3S(s, rhombic) + 2H2O(g) AGn = -102 kJ You may wan...

A:

Q: pOH

A:

Q: If 2083 Joules are used to melt 5.26 grams of aluminum, what is the heat of fusion of aluminum in J/...

A:

Q: A chemist measures the energy change AH during the following reaction: 2 Fe,O3(s) → 4 Fe(s)+O,(9) AH...

A: For the given reaction, we need to calculate the amount of heat absorbed/released.

Q: (30) Take a look at the two multi-substituted benzene compounds below. Trinitrotoluene (TNT) has its...

A: The name of the compound when a methyl group is attached with the benzene is toluene.

Q: 14. a) What isomerism is shown by butenedioic acid and why? b) Differentiate between racemic mixture...

A:

Q: Consider the following unbalanced redox reaction. • Part A Cr203 (aq) + Cu (s) → Cr³+(ag) + Cu²+(aq)...

A: In a balanced chemical equation, the atoms of elements on both sides of the equation must be equal. 

Q: For the diprotic weak acid H2A, Kal = 3.8 × 10-6 and K2 = 7.8 x 10-9. What is the pH of a 0.0750 M s...

A:

Q: Period: pH pH Versus Hydronium lon Concentration 14 12 Bleach. Aqueous ammonia• Milk of magnesia• 10...

A:

Q: A student adds KF to 867 mL of a 0.0020 M Mg(NO3)2 solution. What is the minimum quantity of moles o...

A: the solubility product at standard condition is the product of ions formed when a sparingly soluble ...

Q: Calculate the value of ΔGo in kJ for the combustion of 1 mole of methane to form carbon dioxide and ...

A: Thermodynamics is branch of chemistry in which deals with the amount of heat evolved or absorbed by ...

Q: Target Reaction: HCl(g)+NaNO s)→ HNO () + NaCl(s) Step Reactions: pup 2NACI(s) + H O() → 2HCI(g)+ Na...

A:

Q: How to determine the concentration (M) of the fully deprotonated anion (in scientific notation) for ...

A:

Q: Find the saponification # of cod liver oil if a 1.1090 g is saponified with 25 mL of 0.5N alcoholic ...

A: Introduction :  Saponification can be defined as a process that involves conversion of fat or oil in...

Q: write a complete set of equations (molecular, total ionic, and net ionic) for the reaction of iron (...

A: FeCl3 + NaOH -->  

Q: What is ΔSsys for a freezing phase transition at 4.9 °C for a compound that freezes at 4.9 °C and th...

A: Given - - > Temperature (T) = 4.9 °C = (4.9+273.15) = 278.05 K ΔHsys = - 18.21 kJ mol-1  

Q: The transformation takes place via two sequential pericyclic reactions. Identify the two reactions a...

A: Given & To find:-

Q: Why do we light a match before we open the gas valve?

A: The above question is related to the safety protocols associated in the laboratory. 

Q: Draw the major product(s) of the following reactions including stereochemistry when it is appropriat...

A: 2 moles Br2 addition to the terminal alkyne gives alkane product . Addition of Br2 to double bond or...

Q: 3. Draw the structure of the major product of the following reactions. H-Br H-Br

A: Addition of HBr to double bond occurs via carbocation formation. Carbocation rearrangement also obse...

Q: Bromine monochloride is synthesized using the reaction Br2(g)+Cl2(g)↽−−⇀2BrCl(g)?p=1.1×10−4 at 150 ...

A:

Q: Draw a plausible mechanism for the electrocyclic ring closing reaction shown below. Provide explanat...

A: Given reaction is an example of electrocyclic ring closing reaction , where cyclisation of open chai...

Q: A STUDENT MIXES TWO CLEAR ,colorless solutions and observes the formation of bubbles. has a reaction...

A: A STUDENT MIXES TWO CLEAR ,colorless solutions and observes the formation of bubbles. has a reaction...

Q: Direction: Supply the missing information on the difference between the properties of solids and liq...

A:

Q: Determine the amount of heat (in kJ) given off when 5.43 x 105 g of NO2 are produced. to the equatio...

A:

Q: Select the energy in joules that an average oxygen molecule in a flame at 2000 K would have       ...

A: Given that ,  Diatomic Molecule (O2)  Temperature = 2000K  We have to determine the average kinetic ...

Q: Draw an MO diagram for the pi-bonding in 1,3-butadiene (C2h symmetry). Draw a picture of each MO loo...

A: M.O CAN BE OBTAINED FROM NOMOF PARTICIPATING ORBITALS,HERE TOTAL 4 ATOM PARTICIPATED SO 4 M.O WILL B...

Q: Be sure to answer all parts. For a certain reaction, the frequency factor A is 6.7 x 10's and the ac...

A: the rate constant and temperature are related to each other  here we are required  to find the rate ...

Q: The ?a of a monoprotic weak acid is 0.00846. What is the percent ionization of a 0.136 M solution of...

A:

Q: The maximum recommended single does for acetaminophen is 15.0 mg per kilogram of body weight for adu...

A:

Q: Question 8 of 8 -/1 E The enolate of a ketone can be treated with an ester to give a diketone. Draw ...

A:

Q: I CH2(CO2Et)2 R- .COOH II RCH(CO,Et)2 R. „COOH III ACCH,CO,Et R. COCH; IV RCH,COCH; R. COOH R. COOH ...

A: Iodoform test is used to detect the presence of carbonyl group. 

Q: Part A MISSED THIS? Read Sechion 6.4 (Pages 222-225) Aerosol cans carry clear warnings against incin...

A: