What impurity was likely removed during the recrystallization necessary ?

Q: Draw condensed structural formulas for all unique constitutional isomers of the monochloro derivativ...

A: The answer is as follows:  

Q: 16.04g

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Q: You started with 1.000 g of unknown and isolated 0.9550 g of metallic Cu. What is the calculated for...

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Q: sample of He occupies a volume of 213 mL at 132.3 kPa. What volume in ml would the gas occupy if the...

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Q: Which of the following processes is exothermic, given the following: N2(g) + 2 02(g) N204() AH°= 9.6...

A: From the given del H value we can calculate the del H value of target reaction. Enthalpy change of r...

Q: 1. Calculate the vapor pressure of a mixture containing 35.6 g of glucose and 5 mL of ethanol at 25°...

A: Given :-  Mass of glucose, C6H12O6 = 35.6 g  Volume of ethanol, C2H6O = 5 mL  Temperature = T = 25 °...

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is b...

A: Here only we have to use the mass of AgCl precipitate. We convert it into moles and from that we can...

Q: For the reaction, N2(g) + 2 O2(g) ➞ 2 NO2(g) , the enthalpy change is 33.9 kJ/mole of NO2 formed. Wh...

A: Enthalpy is a thermodynamic property which is an extensive additive property we are required to find...

Q: Cyclic peptides received increasing amounts of attention because of their pharmaceutical propertie i...

A: Cyclic peptides have much importance in Pharmaceutical industries. This cyclic peptides are formed V...

Q: If 18.0 mL of glacial acetic acid (pure HC2H3O2; Ka=1.8×10−5) is diluted to 1.40 L with water, what ...

A: Glacial acetic acid is purest form of acetic acid in which anhydrous form or undiluted form of aceti...

Q: How many milliliters of 0.20 M chloric acid are needed to prepare 3.0x102 milliliters of 0.050 M chl...

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Q: Question 22 What is/are the challenge(s) of imaging pancreatic beta cells? O the poor spatial resolu...

A: A multiple choice question based on general chemistry that is to be accomplished.

Q: Provide an arrow-pushing mechanism for the following reaction. The first half of the mechanism invol...

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Q: 1. How many liters of oxygen, at STP, can be obtained from 100g of potassium chlorate? 2KCIO, → 2KCI...

A: These type of questions are solve using mole concept. Let us solve this step by step. Mole= volume/2...

Q: Calculate the standard enthalpy change for the reaction 2C8H18() + 1702(9) → 16CO(9) + 18H20(). Give...

A: To determine the value of ∆H° for the reaction given below as; 2 C8H18 l   +   17 O2 g   →    16 CO ...

Q: What is the molar mass of 7 kg barium hydroxide?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

A: Aluminum reacts with iron(III) oxide to form aluminum oxide and iron. The equation for the balanced ...

Q: Be sure to answer all parts. Use the table to calculate AG for the following reactions at 25°C. Spec...

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Q: what pressure does the mean free path of argon at 25°C become comparable to the diameters of the ato...

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Q: Select all reactions where Kp is equal to Kc. PCl3(g) + Cl2(g) ⇌ PCl5(g) 2 SO3(g) ⇌ 2 SO2(g) + O2(...

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Q: Strontium-90 is a particularly dangerous product of nuclear fission because it is chemically similar...

A: Since you have posted more than one question, we will solve only first question for you. If you want...

Q: Select Draw Rings More Erase H CH;CH2OK CH;CH,OH heat Br

A: This is the concept of Organic chemistry

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

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Q: 1) Cl2, H30* 2) NaCN 3) H2SO4, H20 4) SOCIl,

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Q: For Cr23+ ion, calculate the wavelength of the light that is emitted upon the electron's transition ...

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Q: A gas initially at 67.0 °C and 3.75 atm is heated to 346 °C and the pressure is reduced to 2.68 atm....

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Q: In the design of H2 antagonist, the polar guanidine group was proposed to interact with the antagoni...

A: Introduction :  Drug design is the inventive process of finding new medications based on the knowled...

Q: deltaG

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Q: Question 2 Based on the reaction below, which direction would the following changes to the reaction ...

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Q: How much heat is required to raise the temperature of 15 x 10g of water from 45F to 130F? The specif...

A: Answer: This question is based on the following formula: Q=mS∆There:Q=heat exchangedm=mass of the wa...

Q: A laboratory procedure calls for 250 mL of an approximately 0.10 M solution of NH3. Describe how you...

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Q: Methylhydrazine Chemical Formula CH,N2 Molar Mass 46.07 g/mol Standard boiling point (T°%) AH°vap at...

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Q: Determine the empirical formula of a compound containing 3.76 g of silicon and 19.0 g of chlorine.

A: Given :-  Mass of Si = 3.76 g  Mass of Cl = 19.0 g  To determine :-  Empirical formula 

Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are ...

A: Precipitate is the solid residue obtained at the bottom of the solution.

Q: In order to optimize acetylcholinesterase inhibition, a set of benzylamine derivatives were studied,...

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Q: 1. List the four variables or factors that can affect the rate of reaction.

A: Solving only first question in accordance with the guidelines. We will discuss factors affecting rat...

Q: Complete the reaction scheme below with the missing structure and any other necessary reagents. You ...

A: The answer is as follows:  

Q: Calculate the pH of a mixture containing 0.23 M HONH2 and 0.44 M HONH3Cl. (Kb = 1.1 × 10–8)  ICE ta...

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Q: Use the References to access important values if needed for this question. When the following skelet...

A: Concept  1) The species which oxidised others while reduced itself is called oxidising agent.  2) Th...

Q: Consider the problem below: (Equation 1) H2(g) + F2(g) ---> 2 HF(e) AH = -542.2 kJ/mol %3D (Equation...

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Q: If the molar solubility of MnCO3 is 2.1l × 10-0 M at a certain temperature, what is the Kgp for the ...

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Q: Predict the molecular structure, bond angles, and polarity (dipole moment) for each of tl Formula Mo...

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Q: A 22.0 g block of copper at 45°C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0385 JigC...

A: Given - - > Heat absorbed = 2.50 KJ Mass of block = 22 g Initial temperature = 45°C Specific heat...

Q: Enter your answer in the provided box. 35 The atomic masses of the two stable isotopes of chlorine, ...

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Q: 5 Isopropylbenzene (C9H12) is commercially produced by Friedel–Crafts alkylation of compound H with ...

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Q: Which of the following species are strong acids? H,SO4 HSO, HF HNO3 HCN HNO, H,CO3 HCI HCO3

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Q: Clikk in the ansner bes to activate the palette. Halance the equation representing the reaction hetw...

A: Answer: Balancing of a chemical reaction is based on concept of conservation of mass and for that at...

Q: The equilibrium constant, K, for the following reaction is 2.44x10 2 at 518 K. PCI5(9) 2 PCI3(g) + C...

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Q: manganese atom: n 1 mi M; e- e- n M. 1 6. 7 3 8 4 9 10 d) Is the element manganese paramagnetic or d...

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Q: As pure elements, all of the halogens are diatomic molecular species. Their melting points are: F2, ...

A: Astatine is a member of halogen group having no stable isotope.