8. Which one of the following combinations cannot function as a buffer solution? A. HCN and KCN B. NH3 and (NH4)2SO4 C. HNO, and NANO, D. HF and NaF E. HNO2 and NaNO2 9. Calculate the percent ionization of formic acid in a 0.010 M HCOOH solution. (K. = 1.7 x 104) A. 11% B. 13% C. 15% D. 17% E. None of the Above 2

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A: Initial pressure = 4.0 atm  Initial temperature = 55 °C  New temperature = 80 °C  New pressure = ?

Q: 3. Which of the following has the ability to react via both SN1 and SN2 mechanism? Br A) B) Br C) D)…

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Q: Determine the oxidation state of the metal atom in each of the following complex ions. jon oxidation…

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Q: Draw the product for the following reaction. HO H* (cat.) Ph H. (in excess) O=U

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

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Q: Compare the pH readings of the two buffers. Determine which buffer had the greater buffering…

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Q: Consider the reaction 2N2(g) + 02(g)-2N20(g) 5 pt 1req Using the standard thermodynamic data in the…

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Q: Consider the reaction I2(g) + Cl2(g)–2ICI(g) Use the standard thermodynamic data in the tables…

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Q: Suggest a compound that could be used to neutralize phosphoric acid and produce lithium phosphate.…

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Q: Treatment of ammonia with phenol in the presence of hypochlorite yields indophenol, a blue product…

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Q: starting volume of water is 250 ml After the gas has been bubbled into the bottle, it is found that…

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Q: A solution is prepared by dissolving 3.00 g of naphthalene (C10H8) in 20.0 g of benzene (C6H6). What…

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Q: 2. Draw the graph showing the pH at the different volumes of NaOH added

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Q: The following molecular model represents a tetrahedral intermediate resulting from addition of a…

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

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Q: 3) Na is present in seawater as 1.25 g Na/kg seawater. What volume of seawater as in liters(L),…

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Q: Q11) The following symbol indicates a) Toxic chemicals b) Oxidizing reagent c) Harmful iritant d)…

A: A substance that may cause irritation to skin , eyes or inside our body is called harmful irritant.

Q: Is the product pure? On what basis did you reach this conclusion?

A: A question based on analytical process that is to be accomplished.

Q: What is the effect of oy on the x, y, z axes of the 4 atoms in BF3? А. -4 В. -2 С. О D. 2 Е. 4

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Q: Copper(II) acetate containing copper-64 is commonly used to study brain tumors. This isotope has a…

A: Radioactive decay follows the first-order kinetics. The decay constant (λ) or rate constant and…

Q: 1. In this experiment we measured K, for borax Na,B,0,(OH), 8H,0(s)=2Na*(aq)+ B,0,(OH),¯(aq)+8H,0(1)…

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

Q: please solve Q13) During the titration technique, the titration process is stopped at   a)…

A: During the titration technique, the titration process is stopped at

Q: 24 This was used to determine the characteristics of the particles in a cathode ray beam and…

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

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Q: Classify cach substance as an ionic solid, a molecular solid, a metallic solid, or a polymer. lonic…

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Q: 13. Easily soluble in water? A. Aminazin B. Riboflavin C. Thiamine bromide (chloride) D.…

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Q: Given the equation Ag*(aq) + 2 NH, (aq) – [Ag(NH,),]*(aq) Kf = 2.00 x 10" determine the…

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Q: 7. For sequential reaction: A > B +C ..(i) 2B »C+ 2D ..(i) If % yield of (i) and (ii) reactions are…

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Q: Considering a cubic crystal system, show that the [hkl] direction is perpendicular to the (hkl)…

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Q: Show the chemical equation of Hydrolysis of oil of wintergreen

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Q: What group renders the acidic resistance of this drug? methoxy benzyl phenoxymethyl carboxymethyl

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Q: 2. Calculate the enthalpy for the following reaction: > 2NO2 (g) AH = ? kJ Nao) + 20zg) Using the…

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Q: Determine the number of electrons transferred in one complete reaction? Cr(s) + O2(g) + 2H20(/) → 4…

A: Given-> Cr(s) + O2(g) + 2H2O(l) ---> 4OH (aq) + Cr3+(aq)

Q: 2) If 1mol of gaseous carbon dioxide and 2mol of gaseous sulfur dioxide are produced when 1mol of…

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Q: Both silver(I) chloride and silver(I) bromide are slightly soluble salts, with Ksp values at 25°C of…

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Q: what are likely possibilies for X if Xn + Cl -> XCl2 can you help explain how to solve this? Would…

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Q: 1. The thermochemical equation showing the formation of ammonia, NH, from its elements is Nalg) +…

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Q: Calculate the entropy change when a 375-g sample of nitrogen gas is cooled from 25°C to 0°C at…

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Q: In this experiment, we will be using the gas inside of a small hand-held lighter. Before the trial,…

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Q: 7 List the following metal-ligand bonds in order of increasing thermodynamic stability and explain…

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Q: dry ice sublimes to gaseous CO2. What volume will 1.0 g dry ice occupy at STP?

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Q: 1-Chloro-1,2-diphenylethane can undergo E2 elimination to give either cis- or…

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Q: What volume of oxygen gas is produced when 28.2 g of mercury(II) oxide reacts completely according…

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Q: Give the principle and general reaction involved in Beilstein test.

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Q: How does temperature affect the ability of Catalase to speed the decomposition of hydrogen peroxide?

A: Temperature has important role in the decomposition speed of hydrogen peroxide by catalase.

Q: A certain electrolytic cell produced 39.0 g Cl, from molten NaCl. The time it took for this process…

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Q: Use this diagram below to answer Questions 2 through 4 200 172 kJ 160 155 kJ PE (kJ) 120 112 kJ 102…

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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.