To a buffer containing 0.150 mol NH3 and 0.250 mol NH.* 0.050 mol of HCl (aq) is added. Calculate the pH of the solution given that Ka of NH.* is 5.6 x 10-10

Q: Q6. What are the reacting ions when Pb(NO,), and NaCl react in aqueous solution? A. Pb" CI B. Na",…

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Q: in a 1.00-cm cell. What is the molar absorptivity at 266 nm? 3.55 x 104 M-1-cm-1 6.54x 104 M-1.cm-1…

A: Given that:  %Transmittance = 15.1% Conc.(C) = 2.31×10-5 M  Length(l) = 1.00cm

Q: E. Conductivity of Solutions Conductivity Type of Electrolyte? (Strong, Weak, Non) Classification?…

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Q: Chloromethane forms by the reaction given below. At 1500 K, Kp = 1.63104. In the reaction mixture, P…

A: Qp and Kp is used to determine the direction of reversible reaction.

Q: 2. If 11.2 g of naphthalene, C1oHs (molar mass: 128 g/mol), is dissolved in 105.4 g of chloroform,…

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Q: important for some involved in their half reactions oxidizing agents because H+ ions are

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Q: 3) A company needs to verify the amount of nitrogen in their new "QuikGreen" fertilizer product. To…

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Q: Q12. Which of the following is soluble in water? A. Fe(NO3)2 B. MGCO3 C. Hg,l2 D. CaS Q13. What…

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Q: If a bag of fertilizer were labeled as containing 35% K2O,      b. Assume the bag is labeled as…

A: a) Simply divide the K2O  % by 1.21 to get the percentage of K. Multiply by 1.21 to convert K to…

Q: Write the chemical equation for the neutralization reaction between the phthalic acid, HKC8H4O4, and…

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Q: 16. What is the expression for K, for the following equilibrium? CASO3(s) = CaO(s) + SO2(g) a)…

A: Active mass of solid components is equal to one

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Q: Which of the following pairs of substances could function as a buffer system in an aqueous solution?…

A: Acidic buffer :-  A mixture of weak acid and its salt with strong base is known as acidic buffer For…

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A: Infrared spectroscopy generally helps in studying and identifying the chemical substances or…

Q: 4. O: 3.

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Q: 7. Which of the following statements is true for a reaction with the equilibrium constant K,= 7.6 x…

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Q: You are provided with a stock standard with a concentration of 100 mg/L, and a solution of unknown…

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

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A: Answer: Amount of solute dissolved in 100g solvent at the given temperature, is called as the…

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Q: Define reverse-phase ion-pairing chromatography and describe the underlying principle behind it.…

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Q: Isotonic saline solution has a mass % NaCl concentration of 0.900%. Assuming its density is 1.00…

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Q: 6. When heating the N, molecules in plasma, we can observe the ratio of particle numbers in the v-0…

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Q: Using the Standard Reduction Potential Table, use half-reaction potentials to identify whether the…

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Q: Keep carbonated drinks in cold places, O increases solubility of carbon dioxide gas in water O…

A: Answer: In carbonated drinks, CO2 which is a gas is being dissolved in water which is a liquid.

Q: Write the chemical equation involved silver nitrate test. And explain in your own words, the…

A: Silver nitrate test is used for the qualitative analysis of chloride ions.

Q: Find two (2) articles within the Internet that talks about the benefits/uses of nanotechnology in…

A: Nanotechnology applications in the food industry can be utilized to detect bacteria in packaging, or…

Q: Compound EZ has a molar mass of 76.10 g/mol. A. Calculate the solute mole fraction and molality of…

A: Molar mass of EZ = 76.10 g/mol Concentration of solution = 15% by mass Molar mass of water = 18.02…

Q: QUESTION 3 The density of air under ordinary conditions at 25°C is 1.19 g/L. How many kilograms of…

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Q: A galvanic cell is powered by the following redox reaction: MnO,(s) + 4 H'(aq)+ 2 Cu" (aq) 2+ Mn…

A: Given,  Redox reaction, MnO2(s) + 4H+(aq) + 2Cu+(s) -------> Mn2+(aq) + 2H2O(l) + 2Cu2+(aq)

Q: A 2.036 g of copper (II) salt was dissolved in a 250 mL volumetric flask. A 25 mL aliquot of the…

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Q: 16.32 Draw structures corresponding to the following names: (a) p-Bromophenylacetamide (b)…

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Q: 2.Ammonia is produced commercially by the Haber reaction according to the following reaction: N2(g)…

A: Le-Chatelier's principle states that if there is any changes in the variables of the reaction, the…

Q: 2) An individual plasma [Na+] is measured and found to be 130 mEq/L (normal = 145 mEq/L). What is…

A: Osmolality is concentration of all particles dissolved in a body fluid. It is effected by blood…

Q: Name: Date: Section: Data Report Sheet: The Reaction of Methyl Violet with NaOH: A Kinetic Study 1.…

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Q: The sulfur from 4.00g steel is evolved as dihydrogen sulfide gas and titrated with 1.60 mL of…

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Q: Which one of the following equilibrium reactions is not affected by a change in pressure? O H2(g) +…

A: By increasing the pressure, equillibrium shift in that direction which has less number of moles of…

Q: If a fertilizer bag indicated that it contained 35 percent K2O, a. What does the analysis look like…

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Q: The original bond energy of a dipole-dipole interaction is 20 kJ/mole. If the bonding partners…

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Q: 32. Consider the following two standard reduction potentials: Pt2"(aq) + 2 e → Pt (s); E° = 1.180 V…

A: We have given reduction potential of two half cells. Higher the value of reduction potential of the…

Q: Twenty grams of potassium dichromate (K2Cr2O7) is dissolved in 150 mL of water. What is its…

A: Formula for normality N = w×1000equivalent weight×Volume(mL) Equivalent weight = M.W.n factor

Q: A metal sheet, 2 mm thick, has been exposed to nitrogen gas at 1473 K at the flux of 1.2 x 10-6…

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Q: Calculate the molar concentration of 20 g of cane sugar dissolved in 125 g of water, given that the…

A: Given that : Mass of cane sugar = 20 g Mass of water = 125g Mass of solution= mass of (water +…

Q: For the frame shown below draw the influence lines for Ey, Fy, VC and MC using the equilibrium…

A: below diagram is drawn

Q: The equilibrium pressure of H2 over U(s) and UH3(s) between 450 K and 715 K fits the expression ln…

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Q: Find the concentration of ammonium chloride in a solution of 0.1 molar ammonia so that the acidity…

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Q: STP Volume: 1 mol/22.4 L Avogadro's Number: 6.023 10 molecules/1 mol 1. If 129.37 g of H2 are…

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A: Let us first talk about an acyl group very briefly. The general formula of an acyl group is R-C=O…

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.