A 0.800 M solution of NH3 is prepared and is in equilibrium with its ions. What is the hydroxide ion concentration of the solution? Ammonia has a Kb of 1.75x10-5.

Q: At what Celsius temperature will 2.7 mol of a gas occupy a 30.0 L container at 2.6 atm. (Remember to…

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Q: You perform a thin-layer chromatography test on pigments extracted from a purple flower. There are…

A: Thin-layer chromatography, most commonly known as TLC, is one of the most important separation…

Q: 1. The composition of a mixture of gases in percentage by volume is 30 % N2, 50 % CO2 and 20 % O2.…

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Q: 5. The scene below represents the equilibrium mixture after 0.10 M solutions of HA (blue and red)…

A: HA = blue and red A = red B = black HB = black and blue

Q: What is the final temperature of a piece of 0.0438 kg of aluminum after the addition of 1046 J of…

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Q: Calculate the potential (in V) of a zinc electrode immersed in 0.0200 M in NaOH and saturated with…

A: In this question we will find the potential of a zinc electrode in Volts(V). We are given  E° of…

Q: Select one of the following redox reactions that is beneficial to humans. Explain. A. Photosynthesis…

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Q: Draw the structure(s) of the major organic product(s) of the following reaction. „NH, NANO aqueous…

A: Aromatic amine reacts with sodium nitrite and hydrochloric acid at 0oC temperature to form a…

Q: Which of the following statements are correct? More than one answer is possible. (Select all that…

A: below answer is given

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 2.5 g remain. What is the original…

A: Given :-  Amount of sample left after 120 years = 2.5 g  Half-life kf Cs-131 nuclide = 30 years  To…

Q: For a specific reaction, which of the following statements can be made about K, the equilibrium…

A: Given,  For a specific reaction, which of the following statements can be made about K, the…

Q: What is the pressure in atm in a 5.00 l tabk with 46.00 grams of oxygen gas at 350 k

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Q: A solution of CaCl, in water forms a mixture that is 32.5% calcium chloride by mass. If the total…

A: Mass percent :- The mass of a component in grams present in 100 grams of a mixture is defined as…

Q: 1. HCN is a weak acid (Ka=6.20×10-10) , so the salt, KCN , acts as a weak base. What is the pH of a…

A: Note: As per the guidelines, solution of first question has been. For the expert solution of second…

Q: e molarity of the solution? e molality of the solution?

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Q: Which member of each of the following would you expect to be more soluble in water? Briefly explain…

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Q: Identify the conjugate acid-base pairs: (. ---) (a) CH;COOH(aq) + H2O() CH;COO2(aq) + H30-(aq) (b)…

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Q: Calculate the amount of material remaining for each of the following substances. 5.25 g Rn-222 (t ½…

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Q: 3. Consider the couples I2/I¯ and S4O6²/S2O3²-. I2 is brown in water-solution, and the other three…

A: It is an example of redox reaction  Here we are required to find the overall balanced redox reaction…

Q: 3. These equilibrium constant are measured in the reaction below at 300 K: [Cu) = 0.148 M, [Sn-l=…

A: From the given equation , condition of equilibrium is rate of forward = rate of backward

Q: sp'd-hybridized.

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Q: If 10.0 g of ethanol (C2H5OH) combusts, how many grams of oxygen will be needed to completely react…

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Q: The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. Calculate the change in entropy AS…

A: We have to predict the change in entropy.

Q: How do you label an energy diagram of a chemical reaction?   What is a catalyst and how does it…

A: The progress of a reaction can be represented by the reaction coordinate diagram. In a reaction…

Q: Question #4 - Show how cyclobutane carboxylic acid can be prepared using the malonic ester…

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Q: How many transition states will the reaction shown below have? TSOH OH MeOH O 5 O 2 ОЗ O 4 O 1

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Q: Complete and balance the following redox reaction in acidic solution Teo, (aq) + N,O̟(g)→ Te(s) +…

A: The given redox reaction is: TeO32-aq+N2O4g→Tes+NO3-aq

Q: Rese Consider the solubilities of a particular solute at two different temperatures. Temperature (C)…

A: The solubility of any compoumd can be defined as the mixing of the solvent into the solution at…

Q: When 163.7 g of aluminum chloride (M = 133.33 g/mol) decomposes under STP conditions, what volume of…

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Q: 1.In the properties of a system listed below, which one is not state function A U B S С Р D Q

A: State functions in thermodynamics, depend on only initial and finals position and not depend on the…

Q: (Q66). What is the change in entropy (in J/K) when 16.9 g of liquid hexane boils at its normal…

A: we need to calculate the change in entropy for hexane

Q: Which member of each pair is the stronger acid or base? (a) HCIO or HCIO (b) HCI or CH3COOH (c) NaOH…

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Q: 3) Define conjugate, with respect to acid-base conjugate pairs.

A: 3)  In Bronsted-Lowry definition of acids and bases, a conjugate acid–base pair consists of two…

Q: Cell potential an electrochemical cell based on the following two halr- reactions. Be sure to…

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Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A: 1.) First we calculate moles of SC using mass and molar mass.  2.) Then we write a balanced chemical…

Q: Experiment 3. Assay of Cupric Sulfate Principle: lodometry The percentage purity of cupric sulfate…

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Q: The vapor pressure of the liquid CaH10 is measured at different temperatures. The following vapor…

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Q: For the reaction 2IB1(g) I2(g) + Brz(g), K = 8.50 x 10-3 at 150 °C. If 0.300 mol of IBr is…

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Q: 5. Given the reaction 2 CO(g) + 0,(g) 2 CO(g), what is the effect of adding O, (g) to a…

A: Given reaction , 2CO (g) + O2 (g) <----->2CO (g) we have to see effect of adding O2

Q: Consider the equilibrium reaction: C2H5OH + CH3COOH = CH3COOC2H5 + H2O. What effect will adding a…

A: This question belong to chemical equilibrium best on Le-chatelier's principle. According to…

Q: Determine E° for the half-reaction Fe3 (aq) + e Fe2 (aq). Fe3+(aq) + H2(g) → 2H*(aq) + Fe2+(aq) E° =…

A: E° for the following net cell reaction = +0.77 V  Fe3+(aq) + H2(g) ---> 2H+(aq) + Fe2+(aq)  E°…

Q: Phencyclidine is c17h25n a same suspected of being the illicit drug was formed to be 84.71 c 10.42h…

A: The molar mass of Phencyclidine, C17H25N is 243.387 g/mol

Q: oxidation number

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Q: Translate into condensed structural formula

A: Translate the given structure into its condensed structural formula.

Q: A sample containing only NaCl and KCI was treated with AgNO,.. The sample weighed 0.5325 grams.…

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Q: 3. 184 g of C2H5OH dissolved in 400 g of H2O 4. 600 g of C3H7OH dissolved in 600 g of H20

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Q: In this Chemical equation  Pb(NO3)2 (aq) + 2KI(aq) —> PbI2(s) + 2KNO3 (aq) with an ON of +2 +5-2…

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Q: W 17 A 0.36 M hydrocyanic acid (HCN) solution has a pH of 4.87. Give: (a) the balanced equation for…

A: Given, Concentration(C) = 0.36 M pH = 4.87 pH = -log([H+]) [H+] = 10-4.87 = 1.35×10-5 M a)…

Q: can explain the energy changes as a chemical reaction.  What is activation energy?

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Q: Choose the correct answer. For the electrochemical cell producing a lot of gas the increase in…

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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.