A 1.280 g sample of oxalic acid, H2C2O4, is placed in a 100.0-mL volumetric flask, which is then filled to the mark with water. What is the molarity of the solution? Molarity

Q: . For a 0.326 m aqueous solution of sucrose, C12H22011, What is the boiling point? kb = 0.512°C/m

A: ∆Tb = Kb m  Where ∆Tb = Boiling point elevation                       = To - Ts  Where T0 = Boiling ...

Q: Write the chemical reactions whose equilibrium constants are K, and K, for imidazole (C,H,N,) and im...

A: Imidazole (C3H4N2) is a weak base whose conjugate acid is imidazole hydrochloride (C3H4N2H+Cl-). 

Q: Using the Gibbs-Helmholz equation: a. Explain how a reaction could always be spontaneous. b. Explain...

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Q: What is the percent yield of CO 2 if the reaction of 10.0 grams of CO with excess 0 2 produces 14.0 ...

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Q: 8. What mass of AgNO3 is required to react with 10.0 g of CaCl2? AgNO3 + CaCl2 - AgCl + Ca(NO3)2

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Q: Calculate the number of I of hydrogen gas required to make 4. N2+ H2

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Q: For the molecule shown above (where black=carbon, white=hydrogen, red=oxygen, blue=nitrogen): What i...

A: The molecule given is,  

Q: What is the equivalence point volume of 0.140 M NAOH required to neutralize 75.0 mL of 0.350 M HC1? ...

A: Concentration of NaOH=0.14M  Volume=75mL Concentration of HCl=0.35M    

Q: Which of the following represents the reaction of the weak base, CH3CH2CO0", in water? CH3CH2COO + H...

A: Reaction of weak base with water.,

Q: Which group of side chains is most likely to take part in the catalysis during an enzymatic reaction...

A: The solution of the question is given below:

Q: Identify the point(s) on the following diagram where the addition of heat will cause the temperature...

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Q: A buffered solution was prepared by dissolving 6.85g of sodium formate (NaHCOO in 250.0mL (16) of a ...

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Q: A charge of 7.15 mC is placed at each corner of a square 0.450 m on a side. Part A Determine the mag...

A: Apply Coulomb's law, F = Kq1q2/ r2

Q: (i) and (ii) represent second order reactions: (i) P + Q ---> X and (ii) 2Q ---->X. Present an equat...

A: Rate law equation shows the rate of a chemical reaction depends on concentration of reactant.       ...

Q: Consider the titration of 50.0 mL 0.1250 M KOH with 0.07500 HClO4 M. a. Determine the pH of the sol...

A: A strong acid when reacts with strong base, a salt and water are produced.

Q: Calculate the pH of an acetic acid/acetate buffer after the addition of 21.60 mL of a .200 M NaOH to...

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Q: The burning of 50.2 g of SiH 4 (MW= 32.8)at constant pressure gives off 3790 kJ of heat. Calculate A...

A: The reaction in which heat is released is known as exothermic reaction.  The negative sign indicates...

Q: Write the chemical reaction between Brady’s reagent and acetaldehyde, benzaldehyde and propanone res...

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Q: 1. What is the hybridization for each of the indicated atoms in the following compound?  2. Which i...

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Q: 23. The integral heats of solution at 18°C for the various solid modifications of calcium chloride i...

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Q: Predict the diene used to form the normal demand Diels-Alder reaction product shown below. heat dene...

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Q: Free Energy (kcal/mol) 15 25 20 10 C Reaction progress Use the reaction energy diagram above to answ...

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Q: Reaction product (BH3 + Propene) is

A: The reactants given are BH3 and propene.  

Q: Chromate-dichromate system 1. Prepare a clean spot plate and label four wells. Place 5 drops of 0. 1...

A: To complete the table with observations:

Q: Which of the following applies to meso compounds? A meso compound has chiral carbons O A meso compou...

A: Meso compound: If an organic compound contains more than one chiral carbon and a plane of symmetry t...

Q: What is the molarity of 600 mL of hydrochloric acid (HCI) solution that contains 0.15 mol HCI? O A. ...

A:

Q: 2.Would 20 mL of your 1:1 (acetic acid: sodium acetate) solution prepared in Part B be able to buffe...

A: Buffer capacity is the ability of buffer to resist the change in pH.

Q: The empirical formula a compound is C 2H 40 and its molecular weight was determined to be approximat...

A: Empirical formula is the simplest ratio of atoms present in molecule. Therefore ratio of elements C:...

Q: Calculate the vapor pressure of a mixture containing 35.6 g of glucose and 5 mL of ethanol at 25°C.

A: Given -> Weight of glucose = 35.6 gm Volume = 5 ml = 0.005 L  ( 1L = 1000ml) T = 25°C = 25 + 273 ...

Q: Determine the molal analysis of the products of combustion when octane (C8H18) is burned with 200% ...

A:

Q: What are the three groups of organic compounds that contain only carbon and hydrogen? Explain the di...

A: Organic compounds containing only carbon and hydrogen are called hydrocarbons. 

Q: In an experiment, a chemist prepared two different buffer solutions. For each one, calculate the mol...

A: (a) Solution -

Q: of

A: Calculating the Ratio So 1 molecule of methane has a molecular weight of: 1 * 12.01 + 4 * 1.008 = 16...

Q: p percent transmittance:

A:

Q: Which is longer—a C–H bond or a C–O bond?        Which is shorter—an N–H bond or a C–H bond?   Arran...

A: stronger the bond between atoms, smaller will be there bond length.   

Q: How is the term "organic" used among farmers and food stores today?

A: Organic chemistry is branch of chemistry in which we deal with carbon containing compounds.

Q: Define, derive and give 2 examples on Philip’s equation

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Q: Substance X has a freezing point of 85°C with an entropy change of -35 J/K. Calculate the enthalpy o...

A: When a solid changes into liquid at its melting point the entropy of the system increases.

Q: What are the units of a? What are the units of b? For water the numerical value of a is 5.464 and th...

A:

Q: (a) Identify the type of polymer given in the following figure. (1) (ii) (b) Elucidate the term poly...

A: Polymer are very large  molecules   which  is made up of  many repeating molecular unit  which is  j...

Q: 2. Why does grapefruit juice left in an open can taste metallic? 3. If nerves respond to electrical ...

A: Given:-

Q: Which of the following redox reactions will occur according to activity series? Cu(s) + 2HCl(aq) ? ...

A: Which of the following redox reactions will occur according to activity series?

Q: Question 9 You were given a 1.8% (w/v) stock glucose solution in water, and you were asked to prepar...

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Q: The weak acid, HA, has a Ka of 3.00 x 10-8. What is the Kp of its conjugate base, A"?

A: Given :- Ka for weak acid HA = 3.00 × 10-8  To calculate :- Kb for conjugate base A-   

Q: Assign the correct stereochemical description to this molecule as depicted: ОН H, O S

A:

Q: QUESTION 3 A beaker contains a total concentration of 0.78 molar of weak acetic acid with pka = 2.09...

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Q: Write the chemical reactions whose equilibrium constants are Kp and Ką for imidazole (C,H,N,) and im...

A:

Q: Eind the [HC2H&N2'] and [C2H&N2] for 0.0925 M H»CəH&N>+, which has Kal =1.42 x 10 and Ka2 = 1.18 x 1...

A: Given : [H₂C₂H8N₂]2+ = 0.0925M  Ka1 = 1.42 × 10-7 Ka2 = 1.18 × 10-10  To find : [HC₂H3N₂]+ = ? [C₂H3...

Q: Bronsted-Lowry Acid and Base for C6H8N+ + OH-

A: Bronsted Lowry acid are the species which can donate H+ ion and Bronsted Lowry base are the species ...

Q: The use of a catalyst causes the rate constant for the reaction R → P to increase by a factor of exa...

A: Arrhenius equation is given by- K= Ae-Ea/RT Let us use this equation, and solve the question