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Q: Q4. Write the molecular formula of the compounds with the following empirical formula and molar…
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Q: How many formula units are present in 825 mL of a 0.250 M solution of calcium hydroxide?
A: Volume of solution = 825 ml = 0.825 L....... ( 1 L =1000 ml) Concentration of the calcium hydroxide…
Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I dissolve 3.62 of KBr in 37 mL of water,…
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Q: What is the molecular formula of a compound given the molar mass of the compound is 62.2 g/mol and…
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Q: How many moles of oxygen gas are present if the gas has a volume of 769.9 mL and pressure of 1.70…
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Q: at what temperature is a saturated solution of NaClO3 at an approximate concentration of 11M?
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Q: What will the equilibrium concentration of [Cu(CN)6] be in a solution prepared by adding 0.050 mole…
A: Given, Concentration of Copper(II) nitrate= 0.04 M Moles of KCN = 0.05 M Volume= 1.5 L…
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A: Given : compounds Tip : buffer solution contains weak acid or base and their salt.
Q: Questions: 1. Calculate the value of [N2leq if [H2leq = 2.0 M, [NH3leq = 0.5 M, and Kc = 2. N₂(g) +…
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Q: Choose from this list all of the solutions containing compounds that act as Arrhenius bases. 0…
A: Given compounds: H2SO4(aq) BF3(aq) Cs(OH)2(aq) HClO3(aq) Al(OH)3(aq) We have to find the compounds…
Q: The Eºcell = 0.135 V for the reaction 312(s) + 5Cr₂O7²- (aq) + 34H*(aq) →6103¯ (aq) + 10Cr³+ (aq) +…
A: Given -> E°cell = 0.135 V [Cr2O72-] = 0.036 M [H+] = 0.28 M [IO3-] = 0.00027 M [Cr3+] = 0.0015…
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Q: Shown in the accompanying image is a general Lewis dot formula for a family of representative…
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Q: 2. Confirmatory tests for the various ions are often colorful. Identify the confirmatory…
A: We have find out confirmatory test for the various ions.
Q: A H1 NMR signal is observed at 117.0 Hz (downfield of TMS) on a 1.20×102‑MHz instrument. a) What is…
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Q: ОН ACO ỌAc -ОАс
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Q: Macmillan Learning For each reaction, identify the element that gets reduced and the element that…
A: We will identify elements geting reduced and oxidized and answer the question.
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Q: 24) Which of the following does not have eight valence electrons? A. Rb+ B. Xe Br D. Cat
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Q: Determine the molecular formula of a compound that has a molar mass of 183.2 g/mol and an empirical…
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Q: Potassium bromide (KBr) has a molar mass of 119 g/mol. If I dissolve 11.3 of KBr in 1 L of water,…
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Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: Sn (aq) +Ba…
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Q: QUESTION 13 What is the condensed structural formula for an alkane with four carbon atoms…
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Q: A reaction between liquid reactants takes place at 30.0 °C in a sealed, evacuated vessel with a…
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Q: Draw the major product of this Claisen condensation reaction. Ignore inorganic byproducts. O + 1.…
A: In claisen ester condensation reaction, two moles of ester react with each other in presence of…
Q: 1. How many MOLES of phosphorus pentachloride are present in 1.47 grams of this compound ? moles. 2.…
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Q: If 0.0179 moles reacted, and 793.0 J of heat were absorbed by the reaction in a coffee cup…
A: Given data is Moles of substance reacted = 0.0179 moles Amount of heat absorbed= 793.0 J Enthalpy…
Q: Macmillan Learning A 3D representation of a cyclohexane (C6H₁2) molecule, a cyclic compound used in…
A: Name of compound = cyclohexane Molecular formula = C6H12 In cyclohexane each carbon is single bonded…
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Q: The bond dissociation energy, in kJ, to break 1 bond in 1 mole of CO2 molecules is Single Bond HUN O…
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Q: Calculate the heat of reaction AH for the following reaction: 2 H₂(g) + O₂(g) → 2 H₂O(g) You can…
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Q: PbCl2 has a Ksp of 1.7 x 10-5. If you have a solution of PbCl2 that has a chloride ion concentration…
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Q: A galvanic cell is composed of these two half-cells, with the standard reduction potentials shown:…
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Q: Draw the two possible produ that result from the less stable enolate and the more stable…
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Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. NaOEt, room temperature 2.…
A: -> Base can abstract most acidic hydrogen and form nucleophile which can give nucleophilic…
Q: Using the equations 2 H₂ (g) + O2 (g) → 2 H₂O (1) AH° = -572 kJ/mol Ca (s) + 12 O2 (g) → CaO (s) AH°…
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Q: 1. Write the equilibrium expression for each of the following reactions. a. 203(g) 302(g) b.…
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Q: How many grams of sodium sulfide calcium hydroxide are necessary to create 129.5 mL of a 0.15 M…
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Q: Find [OH-] in 6 M aq. NaOH. [OH-] = Find [CI] in 2 M aq. MgCl₂. [CI] = Find [Br] in 3 M aq. FeBr3.…
A: Concentration of NaOH = 6 M Concentration of MgCl2 = 2 M Concentration of FeBr3 = 3 M
Q: Draw the enolate anion and the ester that would be needed to make this product through a Claisen…
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Q: The cycle of the figure consists of four processes. Make a chart with rows labeled A to D and…
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Q: What is a confirmatory compound/ion?
A: Analytical chemistry uses instruments and methods to separate, identify, and quantify matter. It…
Q: Starting with the following equation, Pb(NO₃)₂(aq) + K₃PO₄(aq) → Pb₃(PO₄)₂(s) + KNO₃(aq) calculate…
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Q: Determine the value of Kc at 25 °C for the reaction C 2H₂O + 2Cl₂4H* + 4CI¯ + O₂ E° (Volts) +1.36…
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Describe commonly used standards for proton NMR? Please answer at your own easy words. Answer should be to the point.
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- Draw the instrumentation of ATR spectroscopy? Please answer at your own words.How could you analysis the concentrated sample using Fluorescence spectroscopy? Please answer shorty at your own words. Answer should be to the point .What types of molecules can study in IR spectroscopy? Please shortly answer at your own words. Answer should be to the point (3-4 lines maximum).
- What type of information of analyte can be obtained using proton NMR? Explain with example. Please answer at your own easy words. Answer should be to the point.How to get coupling constants from this spectra. Values at the top are in ppm. The instrument is 300 MHz.How many (theoretical) peaks can you expect from the H2O in IR spectroscopy? Please shortly answer at your own words. Answer should be to the point (Specific).
- Why KBr used in IR spectroscopic sample preparation? Please shortly answer at your own words. Answer should be to the point (Specific 2-3 lines).Instrumentation of IR spectroscopy? Please answer at your own words.Explain tropylium ion formation in Electron Ionization Mass Spectroscopy (EI-MS). Please answer at your own easy words. Answer should be to the point.
- Analyze the Proton NMR. Determine the number of signals and come up with possible chemical structures.What are the advantages of using the KBr in IR spectroscopic sample preparation? Please shortly answer at your own words. Answer should be to the point (specific 4-5 lines).( give chemical shift value of a and b proton and my must give reason why u choose this chemical shift value )