Example 9. A solution contains 25 per cent water, 25 per cent ethanol and 50 per cent acetic acid by mass. Calculate the mole fraction of each component. a m

Q: A chemist prepares a solution of zinc nitrate (Zn(NO3)₂) by measuring out 75.5 μmol of zinc nitrate…

A:

Q: The activation energy of a reaction can be determined from the slope of which of the following…

A: Since you have posted multiple questions as per guidelines we can answer first one and it you want…

Q: Which one of the following would make the best buffer? (Ac = acetate) O a solution of ammonia and…

A: There are two types of buffer -  Acidic buffer- combination of weak acid and salt from a strong base…

Q: Select all of the following hat are appropriate an enzyme. It increases the rate constant (k) for a…

A: In this question, we have to choose the appropriate options for an enzyme.

Q: 9. 0.4288 g of an unknown acid is dissolved in 20.00 mL water and titrated with NaOH, resulting in…

A: Answer a: mole of NaOH  = concentration  *   volume /1000 = 0.1750*14/1000 = 0.00245 mole of NaOH as…

Q: 3. The pH of 0.125 M Na₂X is 11.15 and the pH of 0.125 M H₂X is 2.55. Calculate pKa1 and pKaz for…

A: pKa1 is Calculated using Ka1 . For this we would consider first ionization of H2X and use given…

Q: Chemistry The critical temperature and critical pressure of xenon are 289.73 K and 5.840 MPa: a.…

A: A) Given : Critical Temperature   =(Tc) = 289.73 k Critical pressure         =(Pc) = 5.840 Mpa…

Q: The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg…

A: Given :- pressure = 74.2 cm of Hg  To convert : 74.2 cm of Hg to atm

Q: Consider the following redox reaction under standard conditions: 2 Li+ (aq) + Fe (s) → Fe2+ (aq) + 2…

A: Given cell reaction, 2 Li+(aq) + Fe(s) → Fe2+(aq) + 2 Li(s)

Q: When 1.3 g of C4H9NO is dissolved in 150 mL water, the resulting solution is 0.50% ionized at…

A: C4H9NO is a weak base. Let us discuss its chemistry.

Q: How are gases different from solids and liquids? O A. Gases can only be made up of atoms O B. Gases…

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

Q: Ict the product of the following reaction: e N. H+ 3) H30* 7

A: Carbonyl compounds react with a secondary amine to form an enamine. Enamines are nitrogen analogous…

Q: The fat content of 10 g of commercial ice cream was determined by the Mojonnier method. The weights…

A: To calculate percent weight extracted in third extraction using the weight of fat given after second…

Q: Chemistry the two sugars are aldo/keto hexos/pentos that has been ciclised to a fur/pyr anose. They…

A:

Q: Calculate the pH of 1.60 M H₂SO4.

A: Given : Concentration of H2SO4 = 1.60 M

Q: I am completing my lab assignment called synthesis of an alcohol by hydrating an alkene.  Get two…

A: A question based on alkene that is to be accomplished.

Q: The half-reactions in nicad (nickel-cadmium) batteries are: 2NiO (OH) (s) + 2H₂O(1) +2e¯ 2Ni(OH)₂…

A: Net ionic equation 2NiO(OH)(s) + 2H2O(l) + Cd(s) ----> 2Ni(OH)2(s) + Cd(OH)2(s)

Q: he dominant type of IMF for CF4 is LDF Ion-Ion forces Hydrogen Bonding Dipole-dipole forces   The…

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per…

Q: (b) Write an expression of the vibrational partition function. Obtain the relation of the…

A: The answers are given below:

Q: 7) 8) KHSO4(s) -> AgNO3(aq) + K₂SO4(s) + Na₂CrO4(aq) SO3(g) + — Ag₂CrO4(s) H₂O + NaNO3(aq)

A:

Q: 2Ag* (aq) + Cu(s) → 2Ag(s) + Cu²+ (aq) O2ce4+ + 21--> 2Ce³+ +12 2Hg2+ (aq) + 2Br (aq) → H82²+ (aq) +…

A: Solution. Cell reaction is 2Ag+ (aq) + Cu (s) →2Ag (s) + Cu2+ (aq)   half cell reaction at cathode…

Q: The mechanism for NO2 (g) + CO (g) → NO (g) + CO2 (g) is thought to be: 2 NO2 → NO3 + NO (slow)…

A: Rate of a reaction is given by slowest step of a reaction and hence it's rate can be given be rate…

Q: e expression for Kc is

A:

Q: Chemistry Draw a complete arrow pushing mechanism for the following reaction. NaOH ? A

A: Here 1,4 conjugate addition occurs in presence of base NaOH which abstract the proton from ketone…

Q: A thiol compound reacts with NaOH and bromine, what product will form? Please draw out what these…

A: When thiol group react with naoh and Br2 disulfide is formed.

Q: Write both an equation using lewis structures and a balanced chemical equation for the reaction…

A: In this question, we have to write both an equation using lewis structures and a balanced chemical…

Q: Consider the reaction: 2H2O(l)2H2(g) + O2(g) Using standard absolute entropies at 298K, calculate…

A:

Q: A0.1857 g sample of the generic hydrocarbon CxHy was burned in a constant volume calorimeter. As a…

A: Given: Mass of hydrocarbon reacted = 0.1857 g. Heat of combustion of hydrocarbon = 71.34 KJ/g =…

Q: How much water can you extract from 1.00 L of 0.35 M solution of sugar at 40 C by exerting a…

A: First of all we will calculate the moles. Concentration = mole ÷ volume

Q: At 1000K, the value of Kp for the following reaction equals 0.338. 2 SO3 (g) 2 SO2 (g) + O2 (g) Kp =…

A: we need to calculate the value of Q and predict direction in which reaction will proceeding

Q: Which one of the following two compounds has the stronger IMF - and therefore the higher boiling…

A: The pairs given are a) Ne & He, b) Cl2 & MgS and c) NH3 & Methane (CH4).

Q: The half life of the radioactive element ubtonium-31 is 10 seconds. If 80 grams of unobtanium-31 are…

A:

Q: How much water can you extract from 1.00 L of 0.35 M solution of sugar at 40 C by exerting a…

A: First of all we will calculate the moles of sugar.Then use PV = nRT

Q: 2. (a) What is partition function? Obtain a general relation of function with the following the…

A: The answers are given as follows:

Q: What would be the correct expression for the equilibrium constant (K) of the following theorethical…

A: Equilibrium constant (K) is the ratio of product of concentration of products raised to their…

Q: Use standard reduction potentials to determine the approximate magnitude of the equilibrium constant…

A: Here we have to determine Keq of the following given redox reaction .

Q: For a reaction with the rate law below: Rate = k O a plot of log [A]o/[A] vs. 1/time gives a…

A: Given rate law, rate = k Rate is independent of concentration.

Q: 3. Which polymer has higher Tg? 0 0 0 || || || || -C(CH₂)4CO(CH2)40- -C(CH₂)4CNH(CH₂)6NH- (A VS. B)…

A: Since you have asked multiple questions we will answer the first one fir you. To get the remaining…

Q: onsider the reaction: 2HBr(g)H2(g) + Br2(l) Using standard thermodynamic data at 298K, calculate…

A: Given : Moles given = 1.58 moles

Q: Question 35 The mechanism for NO2 (g) + CO (g) → NO (g) + CO2 (g) is thought to be: 2 NO2 NO3 + NO -…

A:

Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

A:

Q: In one lab, the gas-collecting apparatus used a gas bulb with a volume of 231 mL. How many grams of…

A: Given: Volume of CO2 produced = 231 mL = 0.231 L                                           (Since 1…

Q: In a reaction, A + B → product, rate is doubled when the concentration of B is doubled, and rate…

A:

Q: Identify the compound that can form hydrogen bonding? O A. CC14 O B. NO2 OC. CH4 O D. HF QUESTION 38…

A: 37) CCl4 doesn't form hydrogen bonding.

Q: Answer the following questions based on the structures of cis and trans 1,2- cyclohexanediols.…

A: 1 i. Ha and Hb are replaced by chlorine. Replacement of Ha and Hb given enantiomers. Therefore Ha…

Q: Under which one of the following conditions will the following reaction be spontaneous as written?…

A:

Q: 4. From the following list, choose the correct reagents and calculate the volumes needed to make…

A: Answer: Buffer capacity would be good if we use the pKa close to the pH. Hence we should use the…

Q: many I have 148g of Ca (OH), How of C₂ (014), do I have? I have 48 of CuCl₂, How many CUCI₂ do I…

A: Number of moles of any substance is the ratio of mass of substance to the molar mass of that…

Q: You need to prepare 1L of 100 mM phosphate buffer at pH 7.1. What masses of monosodium phosphate…

A: Given: Total concentration of solute in buffer = 100 mM = 0.100 M Volume of buffer = 1 L And pH of…

Q: Rank the following intermolecular interactions in terms of increasing strength (meaning a stronger…

A: 1.Intermolecular  force is the  force of attraction  exhibit by  a molecules 2.There are various…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.