If a chemical reaction produces a mixture of 80% R and 20% S, what is the % ee?

Q: What is the pH of a 0.030 M solution of oxalic acid? Ka for oxalic acid is 5.9 x 10-2.

A: pH of weak acid can be calculated by considering its Ka value.

Q: Which of the following statements about the operation of a standard galvanic cell made of a Cu/ Cu…

A: Galvanic cell : The cell which converts chemical energy into electrical energy is called galvanic…

Q: Predict the sign of the standard entropy change for each of the following: PC13(g) → PC13 (1) AS is…

A: For PCl3 (g) → PCl3 (l) Entropy decreases, so, the sign will be negative.   For 2 KCl (s) → 2K (s) +…

Q: Thank you for the explanation. I was also confused in how they came to the equation in the listed…

A: Given that, the combustion reaction of methane. The reaction is CH4 + 2O2 → CO2 + 2H2O + Energy. We…

Q: According to Charles' Law, as volume decreases what do you expect will happen to the temperature?…

A: For a definite amount of gas, at constant pressure, the volume of the gas increases with an increase…

Q: Question 20 of 26 Submit What is the energy (in J) of a mole of photons that have a wavelength of…

A: Given -> Wavelength= 701nm  h = 6.626 × 10-34 J.s  c = 3.00 × 108 m/s

Q: 5. Given the reaction below, if 200.0 g of each reactant is used, determine the following: 3 NaBr(s)…

A: 5) Limiting reactant: A reactant that is totally consumed when the chemical reaction is completed is…

Q: alculate the molarity of the solute in the following solutions containing a. 1.25 g MgNH4PO4 in 750.…

A: Molarity is defined as number of mole solute divide by volume of solution in liter

Q: Complete the following table for aqueous solutions at 25 °C: hydronium ion concentration hydroxide…

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Q: Question 15 Which one of these would give a positive Tollens (silver mirror) test? & A OA OD OC O C…

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Q: Gaseous ethane (CH₂CH₂) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂)…

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Q: Determine Tr and Pr at the final condition.

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Q: The farther pH is from pI the ______________ or __________________ the net charge is on the POI.

A: Amino acids are typically drawn either with no charge or positive and negative charges. When an…

Q: Calculate the hydroxide ion concentration, [OH−][OH−], for a solution with a pH of 9.59

A: We know that pH = – log[H+] pOH = – log[OH–] [OH–] = 10–pOH    Given that pH = 9.59

Q: 250 g of saturated MgSO4 solution is cooled down from 80 °C to 0 °C. What is the mass of MgSO4×7H2O…

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Q: 4. Calculate the pH of a solution having [H3O+] = 2.5 × 10-³. 5. If the pH of a solution is 9.8 then…

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Q: CH3 CH3 - Br CH3OH

A: We have to give the product of the given reaction. Introduction: Substitution uni-molecular reaction…

Q: What element representative (n stands for the principal quantum number and X stands for noble gas…

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Q: 1. a) Draw the structure of the major product that is produced from each of the following reactions:…

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Q: Calculate the wavelength in meters of electromagnetic radiation that has a frequency of 960.0 kHz.…

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Q: Glucose is a monosaccharide that consists of a 6 carbon chain. The second, third, fourth and fifth…

A: Given that,  Glucose is a monosaccharide that has 6 carbon chain.  C-2 , C-3 , C-4 and C-5 carbon…

Q: C₂H₂ + 0₂ ↑ CO₂ H₂O(g)

A: Given :

Q: calculate the mols of PO43- in 80.00 mL of the solution of 0.3000 g Na3PO4 that is dissolved in…

A: Here we  are required to find the moles of phosphate ion present in 0.3 gm of sodium phosphate.

Q: Which of the following pairs co the same intermolecular forces NH₂ and CH4 H₂S and CH₂ сни H ₂0…

A: Intermolecular forces, often abbreviated to IMF, are the attractive and repulsive forces that arise…

Q: 4. 5. 6 In the case of conductivity measurement; find three difference between NaCl and CaCo3.…

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Q: For the following reaction, do the following: 1. Write the correct formulas for the products,…

A: Given, Unbalanced / incomplete reaction : FeCI3(aq) +K2S(aq)→?

Q: The best definition of a chiral molecule is a molecule that has NO plane of symmetry. Sometimes,…

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Q: * Incorrect. Will strong electrolytes form from weak ones? What types of products are necessary for…

A: During an ionic reaction , ionic compounds reacts with each other in which mutual exchange of ions…

Q: Oxygen-22 disintegrates into Fluorine with a decay rate of  λ = 0.315 per seconds. Considering an…

A: Given: The decay rate of Oxygen-22 = 0.315 per seconds We have to find the percentage of it will be…

Q: Why C=O in concentrated/pure aliphatic carboxylic acid appear at lower stretching frequency (1710…

A: The intermolecular forces like hydrogen bonds effects the IR absorption frequencies functional…

Q: "Synthesis gas" is a mixture of carbon monoxide and water vapor. At high temperature synthesis ges…

A: At high temperatures, carbon monoxide (CO) and water vapor react with each other to form carbon…

Q: A chemist fills a reaction vessel with 5.15 atm hydrogen (H₂) gas, 1.52 atm oxygen (O₂) gas, and…

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Q: Titration of a 18.0 mL solution of KOH requires 11.0 mL of 0.0270 M H2SO4 solution. What is the…

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Q: In an oxidation-reduction reaction, electrons are transferred from the oxidizing agent to the…

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Q: hey could someone help me label all of the chiral carbons as R or S?

A: Given : structure Tip : Apply CIP rule

Q: Solution A is 2.00 L of a 2.00 M aqueous solution of copper(II) nitrate. Solution B is 2.00 L of a…

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Q: DATA TABLE A. Conductivity Testing-Evidence for Ions in Aqueous Solution Solution LIOH(aq) HNO₂(aq)…

A: Concept based on the conductivity of the solutions in ionized state and non-ionized state, solid…

Q: Can you please solve this questions 1.What is the mass in grams of 3 moles of potassium chlorate,…

A: In this question, we have to solve both the parts.

Q: The names and chemical formulae of some chemical compounds are written in the first two columns of…

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Q: Balance the equation using lowest whate-number cofficients. equation :-/ C1₂ H2₂291 +0₂ → CO₂ + H₂O

A: The equation is ;  C12H22O11 + O2 ---> H2O + CO2  Balance a equation means in both side of the…

Q: Order the substances below from lowest to highest entropy at 25°C. (lowest) C₂H₂OH(D) Mg(OH),(s)…

A: A question based on chemical thermodynamics. Four compounds and their respective physical state are…

Q: Which of these drugs will produce a basic solution when dissolved in water? (Select all that apply)…

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Q: a. How many molecules of tetraphosphorus decaoxide are present in 2.02 moles of this compound?…

A: As per the mole concept,  Each mole makes up for avogadro number of molecules and vice versa. In…

Q: 3. Propose how you will synthesis this compound Ans

A: Alkyl bromide reacts with alcohol to form an ether by the Williamson ether synthesis. The reaction…

Q: Suppose 50.0 g of superheated Na(s) melts at 500 K and 1 bar pressure. Find the ΔSsys, ΔSsurr​, and…

A: Melting of Na is a reversible change. So,  ∆Ssys=∆qT and,∆Ssurr =-∆qTHere, ∆q= m×Cp×∆Tm= mass. Cp=…

Q: 13) In which species does nitrogen have the highest oxidation number? A) HNO2 B) N2 C) NH3 D)…

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…

Q: Draw the products of the reaction shown. Electron flow is indicated with curved arrows. CH3 H3C

A: Basic rules of electrons/bond movements: When two electrons/lone pair moves away from an atoms it…

Q: en the reaction: C,H,(g) + H₂(g) → C₂H₂(g) AH° = -136.4 kJ and AS° = -120.8 J/K at is the value of…

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Q: The common name of this compound is: H -H

A: The common name is mostly given for compounds based on atoms , substituents or functional groups…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.