Cinchonine is more soluble in water when some acid (such as HC1 or H₂SO4) is added. Explain that observation and provide any relevant structure to support your answer.

Q: Show how you would prepare the following molecules from the indicated starting material. More than…

A: In this reaction secondary alcohol group of cyclic D-glucose is converted into AzideN3 group. Only…

Q: At 700 °C, hydrogen gas reduces nitric oxide according to the equation 2H2(g) + 2NO(g)  2H2O(g) +…

A: From the rate law it is clear order with respect to H2 is one and order with respect to NO is two

Q: Choose all of the processes from below which describe changes which are independent of the path by…

A: ANSWER: Independent a. the elevation increase experienced by a traveller travelling from Grand…

Q: What is the percent by mass of carbon in the amino acid valine (C5H11O2N)?

A: The percent mass of an element in a compound can be calculated by using the following formula:

Q: The equilibrium constants as function of temperature are: Temperature (°C) 227 300 327 427 527 (b)…

A: Given: Temperature(degree celcius) Temperature(K) Kc 227 500.15 95 300 573.15 12 327 600.15…

Q: Formula of the Hydrate Weight of Hydrate and Evaporating Dish Weight of Empty Evaporating Dish…

A: Experimental weight of water in the hydrate = Weight of water lost = 3.893 g  Molar mass of H2O…

Q: Q5) Which one of the following is(are) required for the Halogenation of aromatics? A] Catalyst B]…

A: Note: According to our guidelines we are supposed to answer only first three questions.  Kindly…

Q: What is the percent yield for a process in which 10.4 g CH3OH reacts and 10.1 g CO₂ forms according…

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Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas…

A: Given, The container used for the reaction is a cylinder that is 0.49 meters wide and 0.588 meters…

Q: Write the correct chemical formula for 0.10 M lithium nitrite

A: Lithium : The atomic number of Li is 3 and belongs to IA-group. The electronic configuration of Li :…

Q: How many moles of cheronisopierium atoms correspond to 1.56x104 atoms of cheronisopierium?

A: Mole is defined as mass of substance divide by it's molar mass.   Also mole is defined as number of…

Q: the reaction, N2(g) + O2(g) → 2 NO(g) The rate of disappearance of N2 is 0.887 M/min. What is the…

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Q: Draw one of the possible diastereomers of the molecule shown below. Use a dash or wedge bond to…

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Q: ΔG° for the reaction shown is equal to -698.9 (kJ/mol). Use the information given in the table to…

A: We have been given a reaction and we also have been given the standard free energy of formation…

Q: please solve the following NMR unknown   C14H18O2 1H: 7-8, dd, 4; 4.6, s, 1; 3.6, t, 2; 2.9, t,…

A: 1H-nmr analysis : 1H-nmr provides the information of hydrogen environment in the unknown structure.…

Q: 11.36 Give the IUPAC name for each of the following: a. b. C. Br CI Br Cl OH CI CI

A: The given compound are derivatives of benzene. The IUPAC name of the benzene derivative is given on…

Q: Because of its bent structure and the fact that the oxygen atom attracts electrons more strongly…

A: It is the fact that water molecule has a bent structure and it is also the fact that oxygen atom…

Q: What is the coefficient in front of the Fe ion in the balanced net ionic equation? FeNO33aq +…

A: Since, For write balanced net ionic equation, first balanced the equation then after change into…

Q: OH HO OH wenal

A: A chiral centre is a carbon atom that has four different groups attached to it.  Chiral molecules…

Q: Complete and balance the following equation then write the net ionic equation. Fe(NO3)3+ K3PO4 -->

A: Complete and balanced reaction is as follows: FeNO33aq + K3PO4aq →FePO4s + 3KNO3aq

Q: A student proposes the following Lewis structure for the isocyanate (NCO) ion. _|:N−0= Assign a…

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Q: Which of the following shows the propagation step(s)? Selected Answers: Answers: CH₂ to ta fa. S .(…

A: Concept: A free radical substitution reaction: The mechanism for the substitution of one of the…

Q: 1. Find the change in entropy if 72.5 g of aluminum, originally at 225°C, is melted. (HINT you need…

A: To find out the change in entropy when 72.5 g of aluminium initially present at 225°C is melted.…

Q: Given 0.462 grams of acetic anhydride, how many mmols of acetic anhydride are present? Provide your…

A: Mole is defined as number of mass of substance divide by it's molar mass

Q: Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure :C=0: :Z: ||…

A: Lewis structure is the representation of valence electrons in the atoms of a molecule or ion. In the…

Q: Sensipar is a pharmaceutical used for the treatment of hyperparathyroidism in patients with chronic…

A:

Q: Iron(II) sulfate, is typically the source of iron in tablets prescribed to anemic patients, a…

A: Mass of the Fe2+ tablet taken = 500 mg  During the redox reaction, Fe2+(aq) is oxidized to Fe3+(aq),…

Q: 11.2 Identify each of the following as a formula of an organic or inorganic compound. For an organic…

A: Given  Formula  Find compound organic and inorganic compound

Q: Upload a drawing that shows how a hydrogen atom changes when absorbing light. Be sure to label…

A:

Q: Decide how the sketches below would be listed, if they were listed in order of decreasing force…

A:

Q: Calculate the entropy of the system (J/mol-K) for the reaction shown using the values for S° found…

A:

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: Here, we have to find the name and empirical formulas of the ionic compounds whose constituent…

Q: 6. Shown below is the Fisher projection of (R)-2-bromo-(S)-3-chlorobutane. Draw the mirror image of…

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Q: In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C…

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Q: Draw the major organic product of the Bronsted acid-base reaction. Include all lone pairs and…

A: Concept:  Acids and Bases are classified in many ways , among them one is Bronsted acid and Bases.…

Q: Data Table 1. Increasing Hydrogen-1 # Hydrogen-1 # Hydrogen-2 atoms (purple) atoms (green) 1 10 10…

A: We are given the experimental data for the average atomic mass for different percentages of…

Q: For acetylacetone, plot your measured %Enol as a function of the dielectric constant of the solvent.…

A: We need to plot the % Enol as a function of the dielectric constant of solvent.

Q: A student proposes the following Lewis structure for the carbonate (CO²) ion.

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Q: Calculate the number of oxygen atoms in a 90.0 sample of iron(III) oxide (Fe₂O3). Be sure your…

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Q: Write the net ionic equation for the reaction shown. Include physical states. 2 HNO3(aq) +…

A: The reaction is given and we have to find out the net ionic equation of the given reaction.

Q: An individual has 7.5 × 10−3 mol of hemoglobin (molar mass = 64,456 g/mol) in their blood. How many…

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Q: what is the moles of anhydride, ratio of moles of water to moles of anhydride and experimental…

A: In the given question we have to calculate the moles of anhydride, ratio of mole of water to…

Q: We worked a previous question on an adiabatic irreversible transition that had 0.0101 moles of gas…

A: To calculate the ∆S, ∆SSurrounding, ∆Stotal for an irreversible adiabatic transition given that…

Q: 11.14 Give the IUPAC name for each of the following: CH3 a. CH3-CH-CH₂-CH₂-CH3 b. Br CH₂ - CH3 c.…

A: IUPAC nomenclature: In IUPAC nomenclature  a molecule's longest chain of carbons is taken as parent…

Q: Use pH, pOH, [H3O+], and [OH-] relationships. (a) The hydronium ion concentration in an aqueous…

A:

Q: Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure [H-] : : 0:…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: Combustion of natural gas (primarily methane) occurs in most household heaters. The heat given off…

A: Assuming the house is a cube, its volume is computed from the given dimensions as shown below, with…

Q: A sample of 2-bromobutane has an enantiomeric excess (e.e.) of 45.0% favoring the I-enantiomer. What…

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Q: Draw the least stable resonance form for the intermediate in the following electrophilic…

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Q: What is the relationship between the following compounds? constitutional isomers stereoisomers O…

A: The molecules with the same molecular formula but different structures are known as isomers. If the…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.