Why is it important to pre-treat the solid before leaching?

Q: A student dissolved a mixture of benzoic acid (C6H5CO₂H), phenol (C6H5OH) and 1,4 dimethoxybenzene…

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Q: 4. What current is required to deposit on the cathode 5.00 g gold/h from a solution containing a…

A: Current = Charge/Time  Q = I/t  1F =96500 C/mol  Mass of 1 mole =Molar mass

Q: Question 5 L Give the reagents. O mCPBA O 1. BH3, 2. H2O2, NaOH O KMnO4, H2O 03 1. Hg(OAc)2, H₂O 2.…

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Q: electron dot formula for O₂ sh a single covalent bond a double covalent bond an ionic bond total of…

A: Given molecule= O2 We know that, the valence electrons for O2 molecule= 2*6 = 12 electrons. When…

Q: Explain which compound is more acidic than the other. I II HO HO II is more acidic because of…

A: We have to predict the correct option regarding acidity of compound.

Q: 1. Calculate the concentration (mol/L or M) of calcium ions in each water sample using the molar…

A: The balanced chemical equation for the reaction between Ca2+ and EDTA is shown below: Ca2+ +…

Q: Write the product, side products and the mechanism for reaction. Write the names of starting…

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Q: When bromomethane undergoes solvolysis in a solvent mixture composed of 90% water/10% acetone, the…

A: The process of solvolysis proceeds via the attacks of water, H2O(solvent) to the carbocation…

Q: 4. The following IR spectrum is produced by a compound with C9H10O2 as its empirical formula. What…

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Q: Addition of PPh3 to a solution of Wilkinson’s catalyst, [RhCl(PPh3)3], reduces the turnover…

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Q: Which step would favor the starting materials at equilibirum? energy OB C OA B C D A 1 (1 (I B 21…

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Q: ASAP: Please help me solve for Average Molarity of EDTA Standard Solution and Ca Titer (mg Ca/mL of…

A: The experimental data for the below reaction is given, Ca2+(aq) + EDTA4-(aq) ⇌ CaEDTA2-(aq)

Q: Treatment of 1,2-dimethylcyclopentene with OsO4, followed by aqueous NaHSO3, produces which of the…

A: -> when OsO4/NaHSO3 added to alkene then syn diol product is formed .

Q: Select the starting material which will generate the following two compounds through an ozonolysis…

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Q: 7. Acrylonitrile (C₂H₂N) is a molecule used to produce a plastic called Orlon. How many grams of…

A: We have to predict the amount of acrylonitrile produced.

Q: 2. A sol of silver sulfate is obtained by mixing equal volumes of AgNO3 and H2₂SO4. Write out the…

A: A question based on colloid that is to be accomplished.

Q: 13.How many protons and electrons are in one Br ion? A)35 p. 35e B)80 p. 81 e C)35 p. 34 e D)35p,…

A: In neutral element , number of protons and electrons are same but for ionic species number  of…

Q: A weak acid, HA, with molarity = 0.235 M was found to have a pH = 2.37. Calculate the ionization…

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Q: 20 S-Carvone, found in caraway and dill seeds, is shown below. The reported value for the [a]²⁰ is…

A: Given -> Specific rotation for S-Carvone = +61.7° -> Specific rotation for enantiomer is just…

Q: Questions and Problems Q.1 From their positions on the periodic table, categorize the following…

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Q: Provide the expected major organic product of the reaction sequence shown. 03 - IV and V O V only II…

A: This reaction is known as reductive ozonolysis. Let us discuss its mechanism to find out the answer.…

Q: Which is the correct IUPAC name of this molecule? CH3 _요 CH₂ -CH-CH₂-CHCI…

A: We have to find the IUPAC Name of the molecule.

Q: How many moles of Al2O3 can be formed when a mixture of 0.36 moles of aluminum and 0.36 moles of…

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Q: Predict the d orbital splitting of [RuCl6]2- complex.

A: d-orbital is composed of five degenerate orbitals, and as the ligand approach through the axis, this…

Q: Which of the following alkene addition reactions occur(s) specifically in an anti-fashion?…

A: -> In oxymercuration - Demercuration there occur overall addition of morkovnikov addition of H2O.…

Q: No two electrons in an atom can hav e four quantum numbers" is a statem e Pauli exclusion principle…

A: Pauli's exclusion principle states that no two electrons in the same atom can have identical values…

Q: 3. Write the product and the mechanism for reaction: AICI 3 Hole to H3C H3C

A: When tert butyl benzene treated with acetyl anhydride in presence of anhydrous aluminium chloride,…

Q: In which of the following mechanisms (S N1, S N2, E1, E2) the major reaction products go through a…

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Q: Instructions: Choose any 2 molecules to synthesize. Your starting materials can be any 4 carbon or…

A: The cyclic polymerization of ethyne to give a benzene. Benzene undergo nitration with nitric acid in…

Q: Define the relationship between the two molecules shown below. ОН CH3 **|||| CH3 ОН

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Q: xcept: s cannot be created or destroyed. lement is composed of very small particles d protons,…

A: Dalton's atomic theory includes: 1. Atoms cannot be created or destroyed 2. All atoms of a given…

Q: What is the IUPAC n

A: According to IUPAC 1st give numbering to longest chain according to priority order i.e ethyl will be…

Q: please indicate next to each item if acid, neutral or basic

A: pH and hydronium ion concentration, [H3O+] are related as, pH = - log ([H3O+])

Q: Question 8 How many intermediates in the energy diagram shown below? 02 01 O energy O 4 3 0 reaction

A: Intermediates It can be define as the short lived molecular entity  (atom, ion or molecules)  which…

Q: The geometry of the CS₂ molecule is described as

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Q: 10) What do you mean by calorific value and which chemicals have you used for the determination of…

A: A question based on energy that is to be accomplished.

Q: How is this compound synthesized with its chemical reaction mechanism

A: Let us discuss the step by step process of aspartame synthesis.

Q: 17. What type of chemical bond holds the atoms together within a water molecule? A)Ionic bond…

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Q: 20. The number of lone electron pairs in the N₂ molecule is A) 1 B) 2 C) 3 21.The Lewis structure…

A: Number of lone pair of N2 and Lewis structure of CS2

Q: Consider a pure sample of dimethylamine, an amine which has the formula C₂H7N. Of the options listed…

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Q: Question 22 Which of the following can't be an electrophile? ○ a.. O b.. OC.. O d.. (a) NH2₂ (b) (c)…

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Q: Kerosene, C12H26(1), is a hydrocarbon used in jet fuel. The combustion of kerosene can be…

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Q: Does that mean that  Average molarity of EDTA standard solution =  Average molarity of EDTA? Will…

A: Recall the given reaction,                      Ca2+ aq  +  EDTA4- aq  →CaEDTA2- aqWe have to…

Q: O strong nucleophile in an aprotic solvent O strong nucleophile in a protic solvent O weak…

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Q: e the Esystem values after the addition of 30.00 mL of 0,0500 M HCIO3 to 25,00 mL 0 M NaAuCl4: 3(aq)…

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Q: НО A НО Me OMe НО НО В Me Me MeO ОН 1. m-CPBA (1 equiv) CH₂Cl₂ 2. NaH, Mel, DMF 3. HClO4, H2O НО с…

A: Epoxidation occurs in more electron dense centre

Q: A solution has a pOH of 10.65. What is the [OH-] of the solution? [OH-] = [?] x 10²] M Coefficient…

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Q: What is (are) the expected major product(s) for the following reaction sequence? enantiomer ||| OI…

A: -> BH3.THF / H2O2,NaOH is reagent used for hydroboration -oxidation reaction . In which overall…

Q: Find the theoretical lambda max of the ff compound

A: For calculating lambda max we use Woodward fieser rule

Q: A solution has an H* concentration of 3.8 x 10-9 mol/L. Calculate the solution's pH. Round your…

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Applications of Molecular Spectroscopy

When light sources pass through the diffraction grating then light splits into different wavelengths. The light source produces two types of patterns that are shown as destructive and non-destructive. The light source is in the form of quanta that is quantitation.