1. How many calories is needed to raise the temperature of 40 g water from 0°C to 100°C? The specific heat of water =4.18 J/g.°C.

Q: Please help Please find the limiting reagent using the information in the photo Please show your…

A: Given,20 mL of 0.200 M CaCl2 . 2 H2O20 mL of 0.220 M K2CO3Required,                   The limiting…

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Q: 1 سلم 2 3 4 5 เก OH

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Q: She fills a reaction vessel with H3PO4 and measures its concentration as the reaction proceeds: time…

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Q: What is the correct order of reactivity of CH3CHO, C2H5COCH3 and CH3COCH3?

A: ✓Aldehydes are more reactive than ketones due to the following two reasons:  ✓(i) Due to smaller…

Q: Which is the correct increasing order of reactivity towards electrophilic substitution among the…

A: Electrophilic substitution reaction involves substitution of one H from benzene ring by an…

Q: An ammonium sulphate solution with a concentration of 29% (w/v) was prepared. The molar mass of…

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Q: Consider the following alcohols: - produces symmetric ketone after oxidation? -resistant to…

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Q: Determine the vapor  pressure ratio of the glucose solution and sucrose solution. For both solution,…

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Q: A radioactive substance decays at a rate proportional to the amount present. If 45 percent of a…

A: Given :   Time (t) = 20 years  Percentage of substance decays = 45 %

Q: Br Pool of choices: OCH₂ ABC CH3OH DEF major substitution product GHI OCH 3 major elimination…

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Q: What difference would you expect to see between the UV-vis spectra of (3E,5E)-octa-1,3,5,7-tetraene…

A: The UV-Vis spectra is useful for the determination of color property of the compounds. In other…

Q: a A Lewis acid is an electron pair donor. b. NH, is a Bronsted-Lowry base but not an Arrhenius base.…

A: Lewis acid is proton accepter and lewis base is proton donor.  Arrhenius acid which gives H+ ion and…

Q: A 2.036 g of copper (II) salt was dissolved in a 250 mL volumetric flask. A 25 mL aliquot of the…

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Q: What is the property of sublimate? a. dissolves easily in h20 b. lower evaporation point c.…

A: The given question is based on the physical properties of matter.

Q: 3. An electrolytic cell is used to plate silver from a silver nitrate solution unto an electrode.…

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Q: QUESTION 10 a) Draw the structural formula of 3,4-dimethyl-2-pentene. Name the rule that governs the…

A: Given,

Q: What is true when acids and bases neutralize each other? O The amount of H* and OH is the same O The…

A: When acid is react with base it will form salt and water called neutralization

Q: The limiting molar conductivities of KCl, KNO3 and AgNO3 are 14.99, 14.50 and 13.34 mS- m2/mol,…

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Q: The following anhydride is produced from a reaction of an acid chloride and a carboxylic acid in the…

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Q: 5.76 Identify each of the following as a six-carbon or a three-carbon compound and arrange them in…

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Q: What is the absolute configuration of the two carbons in this compound? H H BrCH, OA. S-left carbon;…

A: -> For configuration give numbering according to preority then rotate 1->2->3 if clockwise…

Q: CH3COO-C₂H5 + H₂O CH3COOH + C₂H5OH Ethyl acetate Acetate Ethanol yl acetate, acetate and ethanol…

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Q: Calcium phosphate is a supplement used to treat calcium deficiencies that may be associated with low…

A: Since the patient is given calcium phosphate, Ca3(PO4)2 supplement to treat calcium(Ca2+)…

Q: A piece of metal thought to be either chromium, nickel or lead was weighed and found to have a mass…

A: A piece of metal Chromium/Nickel/Lead has a mass of 47.4 grams. Volume of water in a graduated…

Q: Conductivity measurements of aqueous solutions of MgCl₂ (strong electrolyte) were done and the…

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Q: Choose the best answer.

A: Raw material are the basic material which are used to produce the end material according to  its…

Q: N-(2-hydroxyethyl)piperazine-N'-(2-ethanesulfonic A purified protein is in a Hepes acid) buffer at…

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Q: Which are true about the Meisenheimer complex? Select the correct response(s): It is positively…

A: A meisenheimer complex is negatively charged intermediate formed by attack of a nucleophile upon one…

Q: Calculate £º, E, and AG for the following cell reaction: 3+ 3Zn(s) + 2Cr³+ (aq) = 3Zn²+ (aq) + 2 Cr…

A: Given-> [Cr3+] = 0.090 M [Zn2+] = 0.0055 M 3Zn(s) + 2Cr3+(aq) <-----> 3Zn2+(aq) + 2Cr(s)

Q: Determine the concentration of ferric ion that can exist in a solution at pH 3. The Ksp of ferric…

A: Given that : pH = 3 pH + pOH = 14 pOH = 14 -3 = 11

Q: On Lime Production Problem: The following dry kiln gas (DKG) analysis equation for the amount of…

A: The solution is shown below

Q: parts per million of DDT in each of the following? tissue ulty: Hard Moss DDT = - 057ing may plkm =…

A: ✓ppm is the abbreviation of parts per million and it  is calculated by dividing the mass of the…

Q: Choose the correct IUPAC name of the structure below. * H₂N. CH3 Propanamine Propanamide Butanamine…

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Q: Which one of the compounds shown is the strongest acid? F ОН F F III ОН V F. F F F = ОН F IV ОН ОН

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Q: Which way would the equilibrium shift if the pressure was decreased for this reaction? C₂Hs (g) +50₂…

A: In this reaction,total moles in the left side = 6 ,total moles in the right side = 7  We know , when…

Q: What is the percent by weight of silicon dioxide in a 1.0006g sample decomposed with hydrochloric…

A: #Experimental data: mass of the residue before volatilizing with silicon tetrafluoride, SiF4 =…

Q: For the reaction, CO(g) + H₂O(g) = CO2 (g) + H2 (g), the value of the equilibrium constant, K, is…

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Q: 38. What type of reaction is observed below? you-l-fynd A. Acylation B. Alkylation C. Markovnikov D.…

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Q: Chemistry written by hand.    Are there any protecting groups involved in the synthesis of…

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: Q. HOW IS THE ATTACK OF MILD ACIDIC ENVIRONMENT ON ACID,BASIC, AND NEUTRAL REFRACTOTRIES.

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

Q: The conductance of several salts in a binary mixture of water and a dipolar aprotic solvent ethylene…

A: Given data:

Q: When a molten mixture of NaCl and ZnCl₂ is electrolyzed with enough dc voltage, the primary products…

A: The metal having more reduction potentiam will be liberated at cathode .

Q: The following are intermediate products in the stepwise synthesis of compound 1 from benzene. Give…

A: The answer is as follows:

Q: Can you please explain the answers??

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Q: . Based on molecular structure, alcohol molecules and ether molecules are analogues of water. This…

A: General molecular formula  of ether molecule is as            R---O---R where R is an alkyl group…

Q: Can anyone please answer this? How would you prepare 5L of 0.9% solution with the given density of…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: Draw the major product of the reaction of 1-butanol and the following reagents:(i) Na (ii) NaH

A: Alcohol has acidic hydrogen so when it reacts with sodium metal ,H2 gas is evolved.

Q: Data Table: Basic Laboratory Techniques (Dry Lab) A. Meter Sticks Point lo 120 Distance Distance…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…