Which pKa value best represents the indicated hydrogen? H-CI 00 O 5 O 10 O-5

Q: Calculate the number of formula units of calcium phosphate produced when 19.50 grams of calcium…

A: Calcium fluoride reacts with excess iron(II) phosphate to form calcium phosphate and iron(II)…

Q: Chemistry Experiment 2: At which temperature would 6.79 g of NH, Cl begin to crystallize in 10 mL of…

A: Weight of NH4Cl = 6.79 gm  Volume= 10 ml = 0.010 L (1L = 1000ml)

Q: Choose the reagent(s) that would be most likely to complete this reaction. -Br

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Q: Question - 6: Draw the resonance structure of the structure mentioned below and which is more…

A: More electronegative atom with +ve charged making the compound unstable

Q: Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. Three…

A: we have to write the isotope symbols for the given isotopes

Q: What volume of groundwater containing 2 mg l−1 dissolved oxygen (DO) would be required to oxidize 23…

A: This is a problem based on oxidation of octane. Here using the concentration of O2 we can find the…

Q: How much heat, in kilojoules, is released when a 70.77 g sample of cesium metal is cooled from 729…

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Q: 2, 4, 6 trinitro aniline is about 104 times less sic compared to its N, N dimethyl derivative.

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Q: Identify the physical property: Lithium reacts with water giving off hydrogen gas and heat Oxygen…

A: The given problem is based on the physical properties of the compounds. Identify the physical change…

Q: Under certain conditions, the substance calcium carbonate can be broken down to form calcium oxide…

A: Given, mass of calcium carbonate reacts = 28.4 g mass of Carbon dioxide formed = ? Note: molar mass…

Q: The following information is for the substance carbon tetrachloride.  Heat of Fusion= 2.30 kJ/mol…

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Q: NH NH₂ a) Identify the hybridization of each nitrogen atom indicated. # NH NH₂ b) For each nitrogen…

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Q: Why is organic chemistry so important?

A: Organic chemistry is branch of chemistry in which we deal hydrocarbons that are made up of carbon…

Q: In picryl iodide one of the C-N bond is shorter (1.3 Å) than the other two (1.45A) give reason.

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Q: Which element in the set would you expect to have lowest IE3(3rd ionization energy?) Li, Al, B The…

A: Given Elements Al , Li and B And Ionic radii of S2- , Cl-  and K+ are 184 , 181, and 138 pm .

Q: What is the first element in the periodic table

A: In the periodic table, the elements are arranged in increasing order of the atomic number of the…

Q: Show that for a reversible adiabatic process, PVY is constant for an ideal gas. Note: ● ● ● For…

A: We have to show that for an adiabatic reversible process, PVγ is constant for an ideal gas. Given…

Q: Explain the aromatic nucleophilic substitution by benzlnl mechanism with proper example, also…

A: Aromatic nucleophilic substitution

Q: The enthalpy change for the following reaction is -92.2 kJ. Using bond energies, estimate the H-H…

A: E N2 = 945 kj/mol E N-H = 391 Kj/mol E H-H = ? enthalpy = -92.2 kj

Q: Problem 16.28 (GO Tutorial) Your answer is partially correct. Try again. For each of the metals…

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

Q: 1) You are in a really tough organic chemistry class and you get a 60 on the exam. But your…

A: Percentile is a way of comparing one's score with all others who participated in the same. It tells…

Q: Label the following reactions as either chemoselective, regioselective, stereoselective or…

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Q: Consider the reaction R  P. Check all of the following that are true when a catalyst is added to the…

A: •Here reaction given=>   R <=> P •R is reactant and P is product. •Here we are adding a…

Q: What is the common name for the following (fun) compound?

A: A question based on nomenclature of organic compounds that is to be accomplished.

Q: A sample of NOCl decomposes according to the following equation: 2 NOCl(g)  2 NO(g) + 1 Cl2(g) An…

A: Recall the given decomposition reaction,                        2 NOCl g  →  2 NO g  +  1 Cl2 g…

Q: Which solution contains the largest number of chloride ions? 100.0 mL of 0.30 M AICI, O 50.0 mL of…

A: we have to determine the solution that contains highest chloride ions

Q: 1. Consider the Following rate law: Rate= K[A] [B]" How are the exponents in and m determined ? 3. A…

A: For a first order reaction the integrated rate law is written as ln[A]o[A]=kt where, [A]o=initial…

Q: Sodium azide is used in many U.S. auto air bags. Its decomposition reaction is: 2 NaN3(s) 3 N₂(g) +…

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Q: Consider the following reaction: 6HCI + 2AI→ 2AICI3 + 3H2 Calculate the mass (in grams) of AICI3…

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Q: When 34.6 mg of a certain molecular compound X are dissolved in 45.0 g of dibenzyl ether…

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Q: What is the vapor pressure of a solution that contains 0.358 mol of Li2O dissolved in 100g of water?…

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Q: Write an equation for the proton transfer reaction that occurs when the following base reacts with…

A: Proton acceptor (base) which is the opposite of an acid. Broensted-Lowry base Base is a negatively…

Q: Arrange these bonds from most ionic to most covalent in character. K-F CI-F Most ionic Most covalent…

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Q: 1. Compute for the Molecular Weight, Eq. Wt, GEW, mEq and GmEq for every 200 grams c. Phosphoric…

A: Molecular weight: Molecular weight is the sum of the atomic masses of all atoms in a molecule.…

Q: hange the following measurement to the appropriate SI unit. The final unit required is shown to the…

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Q: Write the expression for Keq for the following reactions. In each case indicate whether the reaction…

A: We can write keq by recalling this equation A + B ---> C + D Keq =( Pc × PD) / (PA × PB) Px =…

Q: H₂N OH OH OH NH₂ NH₂ H₂N flip OH NH₂ OH OH none of these 0 NH₂ X Note: Only check the boxes of…

A: As we are given that the molecule is flipped by 180°.When we flip the Molecule , it rotate by the…

Q: Give systematic names for the following binary compounds. CsF K2O CuO

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Q: Give formulas for the following binary compounds.   Potassium chloride  Tin (II) bromide  Calcium…

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Q: draw the structure the following compound in chem draw and show hydrogen bond with different colour

A: We have to draw the given structure in chem draw, showing the hydrogen bond with the different…

Q: 1. The fermentation of glucose to ethanol and CO2 is given by: C6H1206(s) →2C2H5OH(1)+2C02 Given are…

A: Entropy is the measure of the randomness or disorder of a system. The entropy change for a system is…

Q: What is the mass of 2.41 moles of AgN*O_{3} ? Write your answer to 2 decimal places and include the…

A: Given  Moles of AgNO3 = 2.41 mol

Q: For the reaction 4Cr (s) + 3O2 (g) → 2Cr2O3 (s) calculate how many grams of the product form when…

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Q: Tubulysin D is a potent cytotoxic compound that interferes with mitosis. Identify the following…

A: we have to mark the functional groups : aromatic ring amide  carboxylic acid

Q: Osmotic pressure is a colligative property that can be used to determine the molar mass of an…

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Q: Read the volume of the liquid in the Erlenmeyer flask. Estimate the volume to the nearest 5 mL…

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Q: 4. N₂ has a molecular weight of 28.0129 Daltons, a bit larger than that of a He atom (4.0017). (a)…

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Q: How many molecules are there in (3.61*10^ ^ 3)N 2 l 6 Answer to 3 significant figures. Note: Your…

A: Given :  Number of moles of N2I6 = 3.61 × 103  To calculate : Number of molecules

Q: What is the formal charge on the oxygen atom in the following molecular species? 0 H CH₂

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Q: In the following reaction, 315 mL of O₂ gas was collected over water at 15°C and a barometric…

A: Given -  Volume of O2 = 315 mL              Temperature = 15°C             Barometric pressure = 745…

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.