A 22.6 mL sample of 0.318 M dimethylamine, (CH3)2NH, is titrated with 0.265 M hydrobromic acid. After adding 11.0 mL of hydrobromic acid, the pH is

Q: A helium-filled weather balloon has a volume of 564 L at 15.9°C and 757 mmHg. It is released and…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: The redox reaction below has a AG value of 642. kJ. Determine the standard cell potential (E cell)…

A: Given that, a balance redox reaction is A(s) + 5B3+(aq) → A5+(aq) + 5B2+(aq). The ∆G0 value of the…

Q: ↳ In the titration of HF with NaOH, which species are present at the equivalence point? HF and H₂O…

A: In this question we have to tell which species present at the equivalenc point.

Q: The following addition reaction produces which stereoisomer? H₂O.

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Q: e, what are the products (

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Q: The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg…

A: Given :- pressure = 74.2 cm of Hg  To convert : 74.2 cm of Hg to atm

Q: Below is the mass spectrum of 2-methyl butane. Identify the base peak and molecular ion peak.…

A: below answer is given

Q: What is the pH of a solution that is 0.150 M NH3 and 0.200 M NH4CI? Kb of NH3 = 1.8 x 10-5 O9.26…

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Q: a. Calculate E for the process E° 0.799 AgIO3+eAg +10 (s) E 18 b. Write the Nernst equation…

A: The expression for EAg is given as,

Q: In the electrolysis of molten aluminum oxide, what are the products (select ALL correct answers)?…

A: Given that, the electrolysis of molten aluminum oxide. We have to tell what are the products.

Q: When initial concentration of a reactant is doubled in a reaction, its half-life period is not…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: A reaction vessel is charged with only 0.616 atm of NO, 0.616 atm of H20 and 0.307 atm of H2 gases.…

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Q: The volume c

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Q: Given the following equation: 2 C4H10 + 13 02 → 8 CO₂ + 10 H₂O How many moles of O₂ are needed to…

A: When butane is burnt in presence of oxygen it gives water and carbon dioxide and water. And…

Q: Name the following complex ions. formula [V(CN)]* [Co (CN),] [Crc14] name

A: Name the following complex ions---

Q: (iii) Draw the organic products of the following Pd-catalysed reactions, paying particular attention…

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Q: Select all of the following reactions that would be expected to provide a positive change in…

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Q: a. Draw a structure showing at least four repeat units of polyacrylonitrile {[CH2-CH(CN)]n}…

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Q: 2. When 1.3 g of C4H9NO is dissolved in 150 mL water, the resulting solution is 0.50% ionized at…

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Q: For the reaction below, A+2B → AB2 if AG= -29.1 kJ-mol what is the value of K at 298 K? (the answer…

A: The free energy change of the reaction is = -29.1 kJ/mol = -29.1 x 1000 kJ/mol The temperature of…

Q: Which compound has the element X with the oxidation number of +6. (select all that are correct…

A: Determination of oxidation number of various molecules.

Q: (c) Define self-assembly in supramolecular chemistry. Explain the metal-directed self-assembly…

A: According to guidelines I will answer only one of those questions!!

Q: Methylacetate 2. Predict IR signal and their values in the assigned molecule (Part B). Also predict…

A: Ester compound shows an characteristic carbonyl absorption at 1735 cm-1 and 1H-NMR spectrum gives an…

Q: 3. Show that the following linear combinations used to form sp³ orbitals are mutually orthogonal. a)…

A: In sp³ hybridization, one s orbital and three p orbitals hybridize to form four sp³ orbitals, each…

Q: QUESTION 1 How many moles are there in 88 g of CO2 sample? O A. 18 moles OB. 1 mole O C. 2 moles O…

A: Moles of a compound can be calculated from knowing the mass and molar mass of that compound.

Q: A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 4.626 liters…

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Q: What is the value of AG (kJ mol-1 ) for this reaction at 201.4 °C? The data refer to 25 °C: P2 (g) +…

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Q: An arctic weather balloon is filled with 27.5 L of helium gas inside a prep shed. The temperature…

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Q: Which of the products listed below is formed as an organic product of the following reaction? be…

A: In this question we have to tell the organic product of the reaction.

Q: 14 Identify the correct reactant, product or conditions for the following reaction H₂SO/H₂O HgSO OH…

A: The correct answer is given below

Q: What is the coefficient for H* after balancing the following reaction in acidic medium? (Please note…

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Q: Consider the following reaction that follows a second order rate law. 2 NO2 (g) → 2 NO (g) + 02 (9)…

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Q: A 0.22 M solution of a weak monoprotic acid, HA, has a pH of 3.28. Calculate Ka for the acid. 1.5 ×…

A: pH = 3.28

Q: "One HCI molecule can form O, N, or F." lone pairs on O, N, or F and hydrogen bonds because it has…

A: Given : We have to fill up the blanks.

Q: A sample of an unknown compound is vaporized at 100. degrees C . The gas produced has a volume of…

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Q: How are gases different from solids and liquids? O A. Gases can only be made up of atoms O B. Gases…

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

Q: What is the value of AG (kJ mol-1) for this reaction at 349.4 °C? The data refer to 25 °C: P2 (g) +…

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Q: utions of sulfuric acid and lead (II) acetate react to for d. If 15.3 g of sulfuric acid and 13.1 g…

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Q: You need to prepare 1L of 100 mM phosphate buffer at pH 7.1. What masses of monosodium phosphate…

A: Given: Total concentration of solute in buffer = 100 mM = 0.100 M Volume of buffer = 1 L And pH of…

Q: The total pressure of a mixture of 64.0 g of oxygen and 10.0 g of hydrogen contained in a 10.0 L…

A: Given :-  Mass of oxygen = 64.0 g  Mass of hydrogen = 10.0 g  Volume = 10.0 L  Temperature = 200°C…

Q: a) b) c) the following equations: I(py) 2 + I + H => 1₁ + I+ + H₂O => 1₂ + 1₂ + OH => 13 + Hpy+ 103…

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Q: Using the values you got from the textbook for enthalpy and entropy, calculate AGO (kJ mol-¹) at…

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Q: For the following reaction, 0.128 moles of potassium hydroxide are mixed with0.158 moles of…

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Q: he dominant type of IMF for CF4 is LDF Ion-Ion forces Hydrogen Bonding Dipole-dipole forces   The…

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per…

Q: If 3.04 grams of chromium have been electroplated on a piece of metal from a CrCl3 solution after…

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Q: given the density of cyclohexane is 0.779glml, what would be the mass of 25.0 mL in grams

A: Given data :  Density of cyclohexane =0.779gm ml-1  Vol.= 25ml  Mass= ?

Q: Calculate Eºcell (in V) and indicate whether the overall reaction shown is spontaneous or…

A: Positive value of E°cell means reaction is spontaneous.

Q: When a 16.9 g sample of NaOH dissolves in 70.0 g of water in a calorimeter, the temperature rises…

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Q: Calculate [H3PO4], [H₂PO4], [HPO4²-], [PO4³-], [H3O+], [OH-], and [CI-] in a mixture that is…

A: H3PO4 is a triprotic weak acid with pKa values of 2.12, 7.21, and 12.32.  Concentration of HCl =…

Q: What is the conjugate base of HCO3™ ?

A: Given :- chemical formula = HCO3-  To determine :- conjugate base of given species

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for