Determine the mass of nickel that shall be electroplated from a solution of nickel (II) chloride by a current of 0.25 amperes flowing for 10 hours. Given that the atomic mass of nickel is 58.7.

Q: A water sample was analyzed for Fe content using the iron-phenanthroline method. The following data…

A: Volume of Stock Solution (mL) Total Volume of Standard Solution (mL) Concentration of Standard…

Q: A scientist isolates 2.366 g of a gas. The sample occupies a volume of 800.0 mL at 78.00 °C and…

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Q: Hz C. CH₂ ・CH-CH=CH₂ Br₂/cala (Bromination) Вр CH₂₂ CH 4-o H₂C - CH 1 Br Dehalogenation CH CE CH -…

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Q: A hydrocarbon mixture known to contain methane, ethene and butane only has a volume of 6.00L, a…

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Q: Among which of the following pairs can be differentiated by Iodoform Test? A. Benzaldehyde and…

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Q: A 20% wt/wt aqueous solution of NaCl (58.45) at 25 oC has a density of 1.145 g/mL. Express the…

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Q: Goal: Predict the results of a chemical reaction. 1. Count: CH, is the chemical formula for methane.…

A: 1.) We would count number of atoms in methane molecule .  2.) To answer these question , we first…

Q: Use the image to answer the following questions 1. 1 3 These two regions are composed of CT. 2 2 and…

A: A- 2  B_1  C_ 5

Q: The ester with the formula C8H1602 gives an alcohol and an acid when hydrolyzed. When the alcohol is…

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Q: 61-65. A 500-gram cube of lead is heated from 25 °C to 75 °C. How much energy was required to heat…

A: Given: Mass of lead = 500 g Initial temperature = 25oC Final temperature = 75oC Specific heat of…

Q: A gas at pressure = 5 MPa is expanded from 123 in³ to 456 ft³. During the process heat = 789 kJ is…

A: Given: Pressure = 5 MPa = 5 x 106 Pa Initial volume = 123 inch3 Final volume = 456 ft3 1 inch3 =…

Q: The ester with the formula C8H16O2 gives an alcohol and an acid when hydrolyzed. When the alcohol is…

A: An ester is derived from an acid and alcohol. If an ester is hydrolyzed it produces an alcohol and…

Q: Which one of the following is correct for the sparingly soluble salts? 1. The cation plus its…

A: To choose the correct answer

Q: Problem # 23. The reaction 2A-R yields the tabulated data below. Temperature (°C) Rate constant…

A: here we are required to find the frequency factor ,activation energy and enthalpy

Q: + HBr ROOR H₂O H₂SO4 H₂0 H₂SO4 H₂SO4 1) BH3 2) H₂O₂/NaOH 2 Br₂ 2 HCI 1) Hg(0Ac)2, H₂O 2) NaBH4 1)…

A: Fill in the blanks with appropriate structures to identify the major product of the reaction.

Q: if the [OH-] is 1.45x10 to the power -10 what is the pH?

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Q: Finish the diagram (from top to bottom) Mixture, silica, air bubble, silica gel, sand, glass wool…

A: We have to answer the given questions about the column chromatography and the thin layer…

Q: Draw 3-methylcyclobutanol. Include all hydrogen atoms. Draw Rings Select || H₂C с O | с H₂ H₂C What…

A: Draw 3-methylcyclobutanolinclude all Hs .

Q: The first method is through a pH strip. To estimate the pH of the sample, Tricia used a pH strip.…

A: In pH strip method, 1 mL of the sample has a pH of 3.3 . Then 1 mL of the same sample was diluted…

Q: 3. The reaction: 2NOBr(g) --> 2NO(g) + Br2(g), has the rate law: Rate k[NOBr]2, where k = 0.055…

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Q: A Poiseuille flow experiment was carried out to measure the viscosity of air at 298 K. The sample…

A: Detail mathematical calculation is shown below

Q: epared by extracting entrated solution.

A: Given: Drug is Tirofiban Concentration is 0.281 mg/ml Weight of patient is 87 Kg The ordered drug…

Q: Which of the following is a strong nucleophile but a weak base? A CH3CH2SNa B) CH3CH2OH c) CH3CH2ONa…

A: -> CH3CH2SNa is strong nucleophile but weak base. ->CH3CH2OH is weak nucleophile and weak…

Q: Propose a mechanism for the following transformation when an ethyl magnesium bromide in excess was…

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Q: The molar volume of hydrogen can be determined for the reaction Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)…

A: To calculate the molar volume of gas ( like Hydrogen ) metal is reached with HCl acid in which…

Q: Based on the general procedure and reaction scheme, how much of every reagent would be needed to…

A: Given: 4-hydroxycoumarin = 1 mmol aromatic aldehyde = 1 mmol methylcarbamate = 1.5 mmol and p-TSA =…

Q: Which of the following will more likely undergo an E1cB reaction with NaO (A) 4-hydroxybutan-2-one…

A: E1cB stands for elimination unimolecular conjugate base.The base will abstract the acidic proton and…

Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A: Given: The volume of 0.03 M Pb(NO3)2 added = 15 mL The volume of 0.2 M NaCl = 20 mL Ksp of PbCl2 =…

Q: A(aq)↽−−⇀2B(aq)?c=9.78×10−6 at 500 KA(aq)⁢↽−−⇀⁢2B(aq)   ⁢Kc=9.78×10−6 at 500 K   If a 3.40 M3.40 M…

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Q: Which of the following is the correct interpretation when Q> 1 in using the Nernst equation? O a.…

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Q: Given the following half reaction: a. lt b. Pt| Fe,Fe+3 c. ZnZn 2 d. Ag | Ag For each of the…

A: Since you have asked multiple questions with multiple sub-parts, we will solve the first question…

Q: NH–C—CH,CH(CH3)

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Q: 1. What does the ff compound belong to: a. ketone b. alcohol c. aldehyde d. alkane 2. What group…

A: The name of the organic compound depends on the functional group name and their position in…

Q: Calculate the pH after addition of 50.00 mL of 0.1000 M HCl into a 50.00 mL 0.1500 M Na2C2O4…

A: When HCl is added to the given salt solution , it will react to give its conjugate acid.  So we…

Q: Draw the organic compound based on the following and answer the questions that follows. a. what…

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Q: The reaction mechanism for Reaction 1 is _____ Choices: A. SN1, B. SN2, C. SN Acyl, D. None of the…

A: In the above given reaction scheme, alkyl halide is first converted to thiol and then it is further…

Q: A 0.1 M solution of the weak acid HA was titrated with 0.1 M NaOH. The pH measured when Vbase=1/2…

A: The solution is given below -

Q: Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is…

A: Given-> S2(g) +C(s) <------> CS2(g). Kc = 9.40 Initial mole of S2 = 12.6 mole Volume (V) =…

Q: Draw the most stable chair conformation of D-mannose (The Fischer Projection is provided below,…

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Q: Select the true option: a). Sigma bond can hold 4 electrons, 2 bonding and 2 anti-bonding b).…

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Q: Which of the following is not true about low molar mass carboxylic acids? They have a sour taste.…

A: Carboxylic acid can liberates H+ ion so it is an acid.

Q: 1. CH₂-CH₂-CH₂-CH₂-CH₂ + H₂O 2. H₂C-CH=CH₂ + HBr/H₂O₂ 3. H,C-CH (OH)-CH, +H* 4. Nitrobenzene +? ?…

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Q: To determine the purity of a synthetic preparation of methylethyl ketone, C4H8O, it was reacted with…

A: Given, Volume of sample = 3.00 mLconcentration of NaOH = 1.2149 M

Q: A standard solution contains 100 ppm of Fe, which was found to have an absorbance of 0.151 au at 508…

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Q: What are the reactants needed for a complete and efficient Fischer esterification reaction? A.…

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Q: Calculate the equilibrium concentrations for all reactants and products if initial concentrations of…

A: We would draw ICE table and use equilibrium Concentration of CH4 to Calculate the change. From this…

Q: What is the mfp of 0.0253 eV neutrons in Zr? For Zr: A = 55.8, p = 6.5 g/cm³, σs = 8 b, og = 0.18 b.

A: Given: For Zr, A = 55.8 g/mol Density = 6.5 g/cm3 σs = 8b σa = 0.18b 1 barn = 10-28 m2 = 10-24 cm2…

Q: Carla and her friends were tasked with determining the heat of reaction for the neutralization of…

A: The reaction between HX and NaOH can be represented as: HX+NaOH→NaX+H2O Number of moles are…

Q: The arrow points to a particular carbon atom that carries an H atom or group of H atoms. This/these…

A: In this question, we will see that appearing of hydrogens in proton NMR spectra as a singlet,…

Q: gram sample of a compound is made up of 35.9 G of aluminum and 64.1 G of sulfur. the empirical…

A: