Q: Rank compounds 1 – 4 (shown below) in terms of decreasing rates of cyclic ether formation.
A: Given : structure of ions
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Q: In SOAP Experiment, why did saponification reaction require the long period of stirring?
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Q: Calculate the number of hydrogen atoms in a 130.0 g sample of tetraborane (B,H10). Be sure your answ...
A: Calculation of number of hydrogen atoms:
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Q: Save What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2...
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A: Determine the heat of reaction for the decomposition of calcium carbonate CaCO3(s) → CaO(s) + CO2(g)...
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A: Given that, Mass of gold=521g Volume of water=50.0 mL Volume after addition of gold into water=77.0m...
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A: Given value, %K=24.74% , MOLAR MASS= 39 g mol-1 %Mn=34.76 %, molar mass=54.938 g mol-1 % O = 40.50 %...
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Q: Mercury is present in Lake Miramar at a total concentration of 20.4 ng/L. Lab tests suggest an avera...
A: The partition coefficient can be calculated as: K=CHg×CpCdissolve (1) Where CHg is the conc...
Q: Which of the following processes is exothermic, given the following N2lg) + 202lg) - N204) AH"=9.67 ...
A: Any reaction that gains energy is endothermic while exothermic reaction looses energy. So, for exoth...
Q: If the acid ionization constant for HX is 5.44 x10-6 at 25 °C what is the ionization constant for th...
A: Acid Ionisation constant Ka = 5.44*10-6 Let us suppose Ionisation constant for conjugate base is d...
Q: Explain the correlation between the structure of the compounds (b-Carotene, chlorophyll ) and the po...
A: Atomic Structure and PolarityThe designs of the significant parts are given beneath. Note that the ...
Q: 12.43 How is vapor-pressure lowering related to a rise in the boiling point of a solution?
A: Please find your solution below : Vapour pressure of a solvent is defined as the pressure exerted by...
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Q: What kind of solvent ingredients is widely is usually used in mouthwash, perfumes and spray A. Eth...
A: Solution is made up of two components: solue and Solvent. Component which is present in major amount...
Q: How many protons, neutrons, and electrons are there in a neutral atom of 113In (indium-113)?
A: Atomic number of indium = 49 Atomic mass of indium = 113
Q: What is the average mass, In grams, of one Zn atom? Multiple Choice O 394 x 10259 O 65.39 amu O 1661...
A: Calculation of mass of zinc:
Q: The pKa of acetone, CH;COCH3, is 19.3. Which of the following bases is strong enough to deprotonate ...
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A: In the electrolytic cell silver electrode act as anode undergoes oxidation. This cell is used to pla...
Q: 4. Determine the empirical formula of a compound with the following composition by mass: 48.0 % C, 8...
A: 4. Given, Molar mass of the compound = 200 g/mol Mass % of C = 48.0 % = 48.0 g Mass % of H = 8.0 % =...
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Q: What is the pH of a 0.320 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?
A:
Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 3.00 x 10° (3.00 billi...
A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...
Q: tow much heat (kJ) is evolved when 4.50 g of Fe203 is reacted with excess carbon monoxide using e203...
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A: Given : gaseous reaction
Q: 11- find the normality N of NaCl soluton , if w/v% = 0.85%. M.Wt =58.5? 0.145 0.0145
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Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 5....
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Q: 5. Magnesium hydroxide (Mg(OH)2) has a pKsp value of 11.25. In a solution at pH 10, what is the maxi...
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Q: 5. Predict the major product of the following reaction ТСРВА NaHCOз
A: Given: structure of reactant.
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Q: 2 Cu, S s(s).-30.(g)-2cu,0(s)-250,(g) 2 Cu, O +2 SO, In the second step, copper(1) oxide and carbon ...
A: Given - 1-2Cu2S + 3O2 --> 2Cu2O + 2SO2 2-Cu2O + C -->2Cu +CO
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Q: The data below were collected for the following reaction: CH3Cl(g)+3Cl2(g)→CCl4(g)+3HCl(g) [CH3Cl]...
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A: No.of moles = Molarity × Volume Mass = No.of moles × Molar mass
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Q: en the thermochemical equation 2S02(g) + O2(g) – 2SO3(g), AH°rxn-198 kJ/mol, how much heat is evolod...
A: Answer and explanation is given below hope you like it.
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Q: pH
A:
Q: reaction was monitored as a function of time: AB→A+B A plot of 1/[AB] versus time yields a straigh...
A: AB-->A + B Slope = 0.052 mol.L^-1.s^-1 Initial concentration = 0.52 mol.L^-1 Final concentratio...
Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 9.00 x 10° (9.00 billi...
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look for at least three extraction methods for perfumery materials.
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Solved in 3 steps
- Enumerate three (3) characteristics of a substance that can be separated from a mixture by steam distillation.What are some advantages of the membrane filter technique in the analysis of a water sample? Some disadvantages?Which of these could not be used in an extraction with water? Explain why you chose these solutions:Acetone, Diethylether, dichloromethane, ethyl aceate, chloroform, ethanol, and hexane
- Describe liquid-liquid extraction. Provide at least one application for liquid-liquid extraction in industryA 532 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After this purification was completed the product crystals were dried and analyzed. The purification procedure produced 174 mg of fluorene and 249 mg of benzoic acid. Calculate the percent composition of this mixture.Describe the differences between a Stober procedure and a water/oil emulsion procedure for the synthesis of colloidal silica particles.