(a) What is the most stable oxidation state of nickel in acidic solution? (b) Show a balanced equation for a possible comproportionation reaction of nickel species in basic solution.

Q: Which of the following is the most correct name for this compound? a. 2,5-dioxooctanal b. 4,7-dioxoo...

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Q: he steroid contains only C, H and O; combustion analysis of a 14.765 gram sample yields 43.257 g CO2...

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Q: b) 1.881x10-3g of copper (II) sulfate in 122mL of solution

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Q: num.. OD D 1/5 Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial ...

A: Given, Ammonia decomposes to nitrogen and hydrogen at high pressure, In 5.0L of vessel, the initial ...

Q: A. Water and chloroform has a partition coefficient of 5.00. A 50.00mL sample of a 8M aqueous soluti...

A: The partition coefficient for water and chloroform is given to 5.00. We are required to calculate th...

Q: b) Provide a stepwise mechanism for the bromination of nitrobenzene.

A: -NO2 is a electron withdrawing group,it pull electron from ortho and para position by resonance and ...

Q: respect to B. The reaction is run with an initial concentration of B equal to 3.18*10^{-1} M3.18∗10−...

A: For 1st order kinetics,  Kt = ln(Ao/A) Where,   K = Rate constant  Ao = initial concentration of B A...

Q: What name 4,4-dimethyl-2-heptyne 3-isobutyl-2-hexyne 5-methyl-2-heptyne 4-isopropyl-2-hexyne

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Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0 °...

A: We have to predict the pressure at different temperature.  

Q: Can 99% of the original 0.040 M IO3 be precipitated as AgI03 before 0.070 M CO32- begins to precipit...

A: Here an aqueous solution contains 0.04 M IO3^-1 and 0.07M of CO3^2-. Ag+ ion is added in order to se...

Q: write the complete ionic equation for the reaction when (nh4)3po4 and na2so4 are mixed in an aqueous...

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Q: gal(a1-6)gal(a1-6)glc(a1-28)fru. Which of the complete IUPAC of this tetrasaccharide? O a-D-galactop...

A: Here we have to write IUPAC name of the following tetra saccharide

Q: In än atom, what is the maximum number of electrons that can have the following quantum numbers? (a)...

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Q: 10x TE is 0.1 mol/L Tris-Cl and 0.01 mol/L EDTA. It is commonly made from 1.0 mol/L Tris-Cl and 0.5 ...

A: TE buffer is called Tris-EDTA buffer.

Q: The phosphorus in a 0.2091-g sample was precipitated as the slightly soluble (NH4)3PO4 • 12 MoO3. Th...

A: Given Mass of PbMoO4 = 0.2922 gram Total yield of sample  = 0.2091 gram We have to calculate the per...

Q: 3. Solve the following. Express the answers in appropriate number of significant figures. Show your ...

A: Significant digit is defined as any of the digits of a number beginning with the digit that is not z...

Q: How many calories are needed to raise 10 g of ice at -5 °C to steam at 100 °C ....

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Q: B. Write name of the following using traditional or IUPAC rules as indicated below the molecules 9 1...

A: Given compounds are : Give IUPAC names = ?

Q: Which of the following statements about buffers is TRUE? Select one: A. When pH = pKa, the weak acid...

A: An acid is substance which can release hydrogen ions and base is substance which can release hydroxy...

Q: 7.000-g sample of a pesticide was decomposed with metallic sodium in alcohol, and the liberated chlo...

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Q: Determine the cell potential of the following system: a) Pb/PbSO4//Pb2+/Pb

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Q: Fluorine-18 (18.0009373 g/mole) decays into oxygen-18 (17.9991596 g/mole). Calculate energy differen...

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Q: Express the quantity in the unit indicated and designate whether this heat is gained or lost by the ...

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Q: bianks Answer: a grams of Fe b. reaction -1 attachment Given the reaction: 2 Fe + 3 0, → Fe,O, + 3 C...

A: For the reaction., 2Fe + 3O2 ---> Fe2O3 + 3CO The amount of heat energy absorbed when two mole of...

Q: What is the mass of a substance that has a value of Q= 98 J, a specif heat of 0.33 J/g.K, and a temp...

A: Given , Q = 98 J  Specific heat = 0.33 J/g.K  Temperature difference = 25K 

Q: Treatment of a 0.2500-g sample of impure potassium chloride with an excess of AgNO3 resulted in the ...

A: First find out moles for AgCl from mass of AgCl. Then use mol to mol ratio to find moles of KCl in s...

Q: eeq/mole cells Nitrogen Source AGpe (kJ/g cells) AGpe (kJ/eeq cells) Ammonium (NH,") Nitrate (NO3) 2...

A: Here we have to write the balanced redox chemical reaction of toluene and Nitrate ion to produce CO2...

Q: 6. 3,3,6,6-tetramethyl-4-octyne 7. 2-bromo-1-chloro-3-isopropyl-1,3,5-cyclohexatriene

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Q: Do expect to get similar data from visual and VS/Avis data collection? Explain

A: A question based on UV and visible spectrum that is to be accomplished.

Q: 1) What is the purpose of adding sodium potassium tartrate (Fehling's B)? 2) What test is used to di...

A: Here we have to explain the purpose of using sodium potassium tartarate in Fehling solution, differe...

Q: Predict the impact of changing the proposed variable

A: A question based on concentration terms that is to be accomplished.

Q: Which has lower temperature 100 ml of water with 10 grams of sugar or 100 ml of water with 10 grams ...

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Q: A. Solve for the Rf value 400mm 333mm 222mm 111mm 99mm 55mm 22mm 5mm A B C D E B. Arrange the letter...

A: The Compound which have more polarity then it’ll travel smaller distance from baseline and more adhe...

Q: Calculate the standard free energy change (kJ/mol) for the reaction shown at a temperature of 298.15...

A: Given reaction is :  N2 (g) + 2O2 (g) ------> N2O4 (g)  Change in enthalpy of the reaction = ΔHrx...

Q: 50. The name of the hydrocarbon H3CH-CH=CH-CH2-CH2-CH3 is 4-hexene O 3-hexene 2-hexene

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Q: 1. (a) Draw the structures of A to E in the following reactions. (i) OH 1. LIAIH4 A РСС 2. H2о (ii) ...

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Q: Complete the right side of the following molecular equation. Assume all salts formed are soluble. Ac...

A: Displacement reaction: when a highly reactive metal displaces the lower reactive metal from its salt...

Q: express in four decimal places. How much heat is required to convert 40.0 g of ice at -10.0 oC to 1...

A: Thermodynamics is branch of chemistry in which we deal with heat of reaction gained or lost to syste...

Q: 70. This process is called , O sublimation process recrystallization process O decolorization proces...

A: Since cooling takes place ans crystallization occurs.  Hence  the process is recrystallizatiion  So ...

Q: For the gaseous reaction 3H₂ + N₂ ⇌ 2NH₃ given are the following no. of moles at equilibrium nH₂ = 0...

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Q: Match the following drug metabolism pathway Prompts Submitted Answers Acetylsalicylic acid Choose a ...

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Q: Calculate the mass percent composition of (NH4)2SO4 (Show work please)

A: The solution is as follows:  

Q: 2. For a certain gas, the VDW constant are a= 6.69 atm-liter/mol? and b= 0.057 liter/mol. What will ...

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Q: _refers to the formation of a new, insoluble product by a chemical reaction; this product then preci...

A: When a substance convert it state from solid to gas directly without converting into liquid phase is...

Q: (а) The IR spectrum below shows the important absorption bands for compound A (C7H1402). Its 'H NMR ...

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Q: Steroid contains only C, H and O; combustion analysis of a 14.765 gram sample yields 43.257 g CO2 an...

A: Given mass of sample  =14.765 gram  Carbon dioxide mass formed = 43.257 g  Water mass formed = 12.39...

Q: Perform the conversions between energy units. 588 kJ = J 3425 kcal = kJ 8.97 x 106 J = kcal FEB 23

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Q: 8. Determine the amount of theoretical oxygen and theoretical air needed to burn a.) 60 kg of butane...

A: By combustion of hydrocarbons, carbon dioxide and water are formed . To predict the amount of water ...

Q: Explain how bacteria are being detected using an electrochemical sensor.

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Q: Amino acid A Amino acid B H2N-CH-Ĉ-OH ČH2 c=0 ÓH isoelectric point = 6.3 isoelectric point = 9.5 "Vh...

A: When the PH is higher than isoelectric point , then there is net negative charge  When PH  is lower ...

d-Block Elements

According to the modern form of periodic table, 118 elements are present which are subdivided as four blocks, namely, s, p, d and f-block elements based on the entry of the valence electron or last electron into which orbital.