What is the pH range the buffer can maintain this buffer system: pyridine and pyridinium bromide? A. 4.15-6.15 B. 7.85-9.85 C. None of these option

Q: H,C. Zエ

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Q: Which indicator is used in the complexometric titrations of zinc with EDTA? Define Hardness of…

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Q: Benzocaine experiment: 4. Explain why benzocaine precipitates during the neutralization.

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Q: A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to quality…

A: After 6 months - NaOH required was 22.48mL and 0.1101M. Number of moles of NaOH, n = Molarity *…

Q: During the titration of an HClO4solution with 0.10320M NaOH, a CHEM 3A student,Juan becamedistracted…

A: Answer: In this question we are titrating the acid against base where concentration of base is known…

Q: Consider the reaction: I2(g) + Cl2(g) 2ICI(g) Using standard thermodynamic data at 298K, calculate…

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Q: Assuming 0.1 M concentrations, arrange the following acid solutions in order of increasing pH.…

A: Concentration of each given acid = 0.1 M (c) We know that -> [H+] = √(Ka ×c)

Q: 10.105 Complete and balance each of the following: (10.7) a. ZNCO3(s) + H,SO,(aq) b. Al(s) + HBr(aq)

A: Active metal react with acid give hydrogen gas

Q: What is the mole fraction of CaBr2 in a 20%(by mass) aqueous solution?

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Q: Determine if the decomposition of potassium chlorate (KClO3) is spontaneous or not. 2 KClO3(s)  >…

A: For the given reaction -  2 KClO3(s)  ->   2 KCl(s)   +   3 O2(g)    The entropy of reaction is -…

Q: What is the concentration of a solution of HCl in which a 10.0 mL sample of acid required 50.0 mL of…

A: Given-> Volume of acid (V1) = 10 .0 ml Volume of NaOH (V2) = 50.0 ml Molarity of NaOH(M2) = 0.150…

Q: draw the structure of the organic product for each alcohol reacting with permanganate. Look on the…

A: Functional group of alochol is OH. There is oxidation of primary, secondary, tertiary alcohol in…

Q: equilibrium. You can leave out water self Write the chemical formulas of the species that wit act as…

A: Salt of strong acid with weak base is always acidic

Q: 3. Calculate cell voltages under the following conditions at 25°C: a) Zn Zn" (0.50 M)lCư (0.10 M)|Cu…

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Q: I. Place the hypothetical elements below in their respective places in the periodic table based on…

A: We would use use period number and group number to place the given elements in their respective…

Q: 46. A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to…

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Q: NO2 Cl2 FeCl3 CH3 O2N- C-CH3 H2, Pd/C ethanol

A: H2,Pd/C reduces double bond and some functional groups like >c=o , NO2 etc.

Q: The primary standard must satisfy one of the following criteria a) Available in pure form b)…

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Q: Suppose a 250. mL flask is filled with 2.0 mol of NO,, 1.4 mol of CO and 0.40 mol of CO,, The…

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Q: 1.1 Fill in the missing (correct) words only: (a) In general, as behavior increases. (b) For an…

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Q: Calculate the pH of the solution that results when 56.0 mL of 0.1510 M NH. is a diluted to 90.0 mL…

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Q: 5. Classify the following bonds as ionic (I), polar (P), or nonpolar (NP) qualitatively based solely…

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Q: The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a first-order…

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Q: The table shows the pH value and the corresponding color change for a chemical indicator bromothymol…

A: Provided range of color changes of bromothymol blue: The provided substances have to be sorted in…

Q: Amino Acids Properties: Match the following specific "R" groups of amino acids to the descriptions.…

A: Answer: Simplest amino acid carries one -NH2 group and one -COOH group but as structure the of amino…

Q: Question 8 How do we keep relative supersaturation low by controlling solute concentration? A…

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Q: You are given a solution of HCOOH (formic acid) with an approximate concentration of 0.20 M and you…

A: Given data :

Q: Agl Fe3(PO4)2 > A93PO4 Fel2 +

A: Given :-  AgI + Fe3(PO4)2 → Ag3PO4 + FeI2  To balance :-  Given equation with appropriate…

Q: Part A Determine whether HI(aq) will react spontaneously with either of metal samples below by a…

A: Given: Al3+(aq) + 3e- → Al(s)       E∘ = -1.66 VCu2+(aq) + 2e- → Cu(s)    E∘ = 0.34 V We have to…

Q: 2. Calculate E°, AG° and K at 25°C for the reaction: 4CIO, (ag) - Cl (ag) + 3CIO, (aq)

A: Calculate E^0, delta G^0 and K at 25 deg celcius for the raction:4ClO3^-(aq)---->Cl^-(aq)…

Q: Consider the 4HCI(g) + 02(g) 2H20(g) + 2C12(g) Using the standard thermodynamic data in the tables…

A: Given-> 4HCl(g) + O2(g) ---> 2H2O(g) + 2Cl2(g) Pressure of each gas = 14.30 mmHg

Q: Can distillation be used to separate liquid mixtures of three or more components

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Q: EXAMPLE 13.4 The conversion of cyclopropane to propene in the gas phase is a first-order reaction…

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Q: The rate of formation of B is how many times the rate of consumption of A given the chemical…

A: (A)-> 6A -->11B (B)-> 12A --> 3B

Q: NO2

A: NO2 is meta directive but alkyl group is ortho and para directive

Q: The atomic radius of metal X is 1.20 × 102 picometers (pm) and a crystal of metal X has a unit cell…

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Q: What is the unique reaction rate [in mM/s] for the reaction 2A + 4B 2C if the rate of consumption…

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Q: COOH SO3H

A: We have find out mechanism.

Q: Compare the two complex ions formed with cobalt: 750 | 400 Red Violet 630 430 Co(H20)62* is ruby-red…

A: Co(H2O)62+ is ruby-red and Co(X)62+ is blue.

Q: Part A What is the (H3 0*] in a solution that contains 1.51 g of HNO3 in 0.460 L of solution?…

A: Given, mass of HNO3 = 1.51 g Volume of the solution = 0.460 L [H3O+] = ? Note: Molar mass of HNO3 =…

Q: A1.0-L buffer solution is 0.125 mol L in HNO, and 0.190 mol L- in NANO,. For nitrous acik K, = 5.6 x…

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Q: Q6) Given the following set of data concerning standardization of NaOH solution: - mass of KHP…

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Q: Select ALL that are always TRUE for a spontaneous process. AG 0 and AS 0

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: Which of the following relationships are true if a cell has a large positive standard cell potential…

A: Equilibrium constant greater than1 indicates that reaction poceed in forward direction

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

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Q: For a reaction 2A + B -----> 2C, with the rate equation: Rate = k[A]^2 [B]. What is the individual…

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Q: For each of the options below, decide if the molecule would be polar or non-polar A bent molecule…

A: A molecule is polar if it possess polar bonds and have asymmetrical structure. A molecule is…

Q: 32. A 50.00 mL of 0.0275 M HCl solution was titrated with 0.1500 M NaOH. Calculate the pH of the…

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Q: In the analysis of 0.8972 g of an impure Cl- sample (35.45 g/mol), 1.399 g of AgCl (143.32 g/mol)…

A: Given, mass of AgCl precipitated = 1.399 g mass of impure Cl-= 0.8972 g

Q: A student determines the value of the equilibrium constant to be 6.04x10-37 for the following…

A: Given-> Keq = 6.04 × 10-37 Moles of N2 = 2.09 mole

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.