2.0 g of a substance in 12 mL of a solvent is extracted with three aliquots of 10 mL of an extracting solvent. How much of the substance by mass was extracted out of the original solvent? (Assume K=2)

Q: At 20.0°C, the vapor pressure of water is 17.5 torr. Using the Clausius-Clapeyron equation,…

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Q: Which is the correct Newman projection of the compound below, as viewed from the angle shown? CI H…

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Q: b. C. CH₂ CH₂ + H-Br Br- -Br Br-Br

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Q: lons Na+ K+ Mg2+ Ca2+ CI™ SO42- HCO3 Total g/kg 10.781 0.399 1.284 0.4119 19.353 2.712 0.126 35.067…

A: Molarity is defined as the number of moles of solute present in 1000 mL of solution.Molality is…

Q: How many carbon atoms are in 57.9 g glucose (C6H12O6)?  (Provide your answer with the correct…

A: mass of glucose (C6H12O6) = 57.9 gNumber of carbon atoms = ?Note: molar mass of glucose (C6H12O6) =…

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A: Atoms consists of three particles called sub-atomic particles which are: electron, proton and…

Q: In the laboratory, a student dilutes 17.8 mL of a 9.80 M hydrobromic acid solution to a total volume…

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Q: A student ran the following reaction in the laboratory at 715 K: N₂(g) + 3H₂(g) → 2NH3(g) When she…

A: In the above question given that-N2(g) + 3H2(g). ==> 2NH3Number of moles of N2 = 0.0307 molNumber…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

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Q: can you please prepare the mechanism for the reaciton in detail

A: The given reaction is an example of the acid catalysed Aldol condensation reaction. This reaction…

Q: Which of the following reaction is an example of an elimination reacti H H H H Br₂ hv Br₂/FeBr3…

A: Removal of two groups or atoms from same carbon or adjacent carbon atoms is called elimination…

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A: As per our guidelines We are supposed to answer only the first three questions, hence kindly repost…

Q: The symbol of a simple unprefixed SI unit has been left off of each measurement in the table below.…

A: We need to tell the symbol of the SI unit for the given measurements.The answer and explanation is…

Q: A student adds 15.0 mL 2.00 M Acetic Acid and 10.0 mL 0.03 M HCl. Determine the pH of the resulting…

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Q: If 100 mL of the gas is collected at 26 degrees Celsius, how many moles of gas were collected?…

A: Q. GivenTemperature (T) = 26oC = 26°C + 273.15 = 299.15KAtmospheric Pressure of water (P1) = 764…

Q: 3. a. Rank the following based on stability, least to most stable (1 is the least stable; 3 is the…

A: A Conjugated system means the presence of alternate single and double bond.Conjugated system is more…

Q: Find the product and the mechanism of the following reaction: it H (CH,),NH

A: The given reaction is a simple addition of amine to aldehyde followed by addition to a ketone to…

Q: Identify the counterion in the following reaction: LiCH3CH2CH2 + H2O → CH3CH2CH3 + LiOH

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Q: Identify a true statement about trans-2-methylcyclohexanol.     a)  The hydroxyl group and the…

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Q: Five samples of neon gas are described in the table below. Rank the samples in order of increasing…

A: Here 5 samples of argon gas are given.Also their number of mole's,pressure  and temperature are…

Q: The pka's of the amino acid asparagine are 2.02 and 8.80. Select the asparagine structure that…

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Q: How would you perform the following transformation? OCH₂CH3 ? NaBH4 1. SOC12 2. LiAlH(O-t-Bu)3 1.…

A: NaBH4 ----> Can  reduce aldehyde/ketone to alcoholLiAlH4 -----> Can reduce aldehyde, ketone,…

Q: Read each description in the first column of the table below. If any chemical element with atomic…

A: An element in Period 5 and Group 2A: StrontiumA semimetal in group 8A: Elements are Noble Gases:…

Q: 3. Given the ligands on the Ru(II) center in the following, explain whether the complex is likely to…

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Q: A sample of oxygen gas at a pressure of 1.19 atm and a temperature of 25.9 °C, occupies a volume of…

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Q: 5. An Olympic-size pool is 50.0 m long and 25.0 m wide. C. How many gallons of water (d = 0.998 g…

A: 5. Length of the Olympic-size pool = 50 m.Width of the pool = 25 m.Density of water = 0.998…

Q: Problem 7: Closed system Provide a ratio of carbonate to total inorganic carbon ([CO3²-] / [C+]) in…

A: The molarity of hydrogen ions in a solution is calculated using the following equation:…

Q: Complete the table below, using the diagram of an atom shown at right. name symbol GI 0 proton 0…

A: There are three sub-atomic particles of an atom: Electron: it's symbol is e-, mass is 0.0005 amu,…

Q: Determine if the following relationship between these substances are enantiomers, diastereomers,…

A: Stereoisomers are of two types: enantiomers and diastereomers.Enantiomers are those stereoisomers…

Q: Br Ph |||||| (CH3)3 CONa (CH3)3 COH (CH3)3 COH A

A: Elimination reactions are favored over nucleophilic substitution reactions due to the presence of…

Q: A. B. C. D. E. F. G. C6H1002 NaOH/H₂O 1) R₂BH 2) H₂O2, H₂O, NaOH Br₂ 1 eq 120 °C 1) NaH 2) EtI 3)…

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Q: i dont understand the explanations, im still a bit confused as to why it is not b, b, a

A: Here, E2 elimination reaction takes place. We know that the E2 elimination reaction is more…

Q: CI Br NaOCH3 CH3OH EtOH

A: Primary alkyl halides undergo SN2 reaction.Secondary alkyl halides undergo both SN1 or SN2 based on…

Q: Molecule: Benzocaine Provide a balanced chemical reaction and mechanism for the reaction. Briefly…

A: Benzocaine is an aromatic compound in which an amino and an acyl group remain attached at the para…

Q: Multiply both sides of the equation by the same expression: (Be sure that the answer field changes…

A: Multiply both sides equation by the same expression.  The expression become as           To multiply…

Q: If the Kh of a weak base is 6.1 x 10-6, what is the pH of a 0.20 M solution of this base? pH =

A: Concentration of the weak base (C) = 0.20 MKb of weak base = 6.1 × 10-6pH of the solution = ?

Q: Consider the following ball-and-stick model. Which of the following represents a constitutional…

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Q: How much K2SO4 will be formed from the reaction of 35.2 g KOH with 74.33 g KHSO4? KOH + KHSO4 -->…

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Q: Question: Research and describe some technologies that are used to protect metals against corrosion…

A: There are several technologies commonly used to protect metals against corrosion. Here are four…

Q: A sample of hydrogen gas at a pressure of 1.09 atm and a temperature of 29.6 °C, occupies a volume…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: 0.100 mol of both H₂CO3 and KHCO3 are dissolved in 1.00 L of water. What reaction takes place when a…

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Q: A constant pH within living cells is maintained by the H₂PO4 (og)/ HPO42 (aq) buffer system. How…

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Q: Calculate the ph of a solution prepared by dissolving 1.30 (g) of sodium acetate, CH3COONa, in 92.0…

A: IntroductionSodium acetate, CH3COONa, dissociates into sodium ions (Na+) and acetate ions (CH3COO-)…

Q: what is the density (in g/mL) of a solid whose mass is 30.57 g if the solid displaces 6.87 mL of…

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Q: Which of the following bonds is the weakest? а спо O b. c. Oco. Odc-o 0

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Q: Three of these reactions proceed using the same intermediate. Draw the structure of that…

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Q: A sample of solid iron is heated with an electrical coil. If 77.7 Joules of energy are added to a…

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Q: 31₂ + CI+ 60H™- →61¯ + CIO3 + 3H₂O In the above reaction, the oxidation state of chlorine changes…

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