C,H,0 2738 2820 1703 4000 3000 2000 1000

Q: 4. Oxidation state of Mn in MnO2 is a) +2 b) - 2 c) +4 d) - 4

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Q: You were given a sample of virgin coconut oil and solutions of the following: A- Ethanol B- NaOH C- ...

A: Solution - According to the question - Given - Ethanol , chloroform ,octane  set of solutions will b...

Q: The following statements about anthracene are true EXCEPT: i. It gives a negative result in Baeyer'...

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Q: The following mechanism has been proposed for the conversion of tert-butyl bromide to tert-butyl alc...

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Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the questi...

A: For the given reaction , Mg(OH)2 +H3PO4--->Mg3(PO4)2 +6H2O  We have to fill the blanks .

Q: Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prep...

A: Balanced chemical equation is the equation in which number of atoms on both side of equation are equ...

Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the questi...

A: Answer: This is a reaction in which Al has been gradually added into the nitric acid solution.

Q: Ammonia gas can be prepared by the following reaction: CaO(s) + 2 NH4C1(s) →2 NH3(g) + H2O(g) + CaCl...

A: Given data,Mass of CaO=480gMass of NH4Cl=960gTheoretical yield of NH3=291gActual yield of NH3=147g

Q: how to prepare this buffer TES (Sigma-Aldrich) infiltration buffer (10 mM TES, 10 mM MgCl2, pH 7.5) ...

A: TES, having the molecular formula C6H15NO6S, is widely used to prepare buffer solution. A TES buffer...

Q: the following reaction 2 NO (g) +  O2 (g) -> 2 NO2 (g) Horxn = -12 kJ and Sorxn = -146 J/K. a. ...

A: Given-> 2NO(g) + O2(g) ---> 2NO2(g) ∆H°rxn = -12 KJ = -12000 J (1 KJ = 1000J) ∆S°rxn = -146J/K...

Q: The trans isomer of the compound below is more stable than its cis isomer. True or false?

A: Stereochemistry is branch of chemistry in which we deal with arrangement of atoms in molecules.

Q: how molecular spectroscopy works? what are its advantage and disadvantages

A: Spectroscopy is based on the interaction between light and matter.

Q: Calculate the concentration of H3O+ if the pH of a solution is 2.19. Answer to two significant figur...

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Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give calc...

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Q: What is the pH of a 0.450 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

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Q: 0.42139 17. G 5 19g. mass of Unknown sulfate. macs Of Empty Crucible & cover 18.33449 mass of Crucib...

A: Answer: This question is based on mass percentage calculation of sulfate in the given sample.

Q: Question/Problem: What is the % composition of potassium chlorate (KCIO,) in a mixture of potassium ...

A: The percent composition can be calculated as shown below. Percent composition=Mmass of simpler eleme...

Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the questi...

A: Given,  Balance the reaction, do not leave any fractions, don't leave anything blank, then answer th...

Q: 1. A balloon has a volume of 5.0 L when at sea level (1.0 atm) at a room temperature of 24 oC. What ...

A: Boyle's law states that for a fixed mass of gas (n) at constant temperature (T), the volume (V) is i...

Q: Calculate the concentrations of all species in a 0.770 M NaCH3COO (sodium acetate) solution. The ion...

A: NaCH3COO = 0.770 M Ka = 1.8 × 10−5  

Q: Complete hydrolysis of which of the following disaccharides yields a single monosaccharide? lactose...

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Q: The cyclobutane ring suffers from angle strain and steric strain but not torsional strain. t or f

A: Angle Strain In Cyclopropane And Cyclobutane The main thing to see about cyclopropane and cyclobutan...

Q: Determine: 2 Fe203(s) + 3 C(s) → 3 CO2(g) + 4 Fe(s) Given Enthalpy (K/mol) 3 -833.8 O2(g) Fe203(s) 2...

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Q: Calculate the specific heat (g'C) of gold if it takes 113.3 J of heat to raise the temperature of 29...

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Q: Chemical name of the gas evolved when hydrogen fluoride is made to react with silica.

A: Since you have posted multiple questions, the answer for first question is given below. Kindly repos...

Q: What is the osmotic pressure of a solution prepared by adding 12.5 g of sucrose (C12H22O11) to enoug...

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as...

Q: Use the Standard Enthalpies of Formation given to solve for the AHf for C2H6. 2 C2H6 (g) + 7 O2(g) →...

A: 2C2H6(g) +7O2(g) --> 4CO2(g) + 6H2O(g)  

Q: p-dihydroxybenzene and o-dihydroxybenzene can be separated by TLC using a solvent of medium polarity...

A: We know that in a TLC plate if we are using the non-polar solvent then it can form bonds ( attractio...

Q: a. Name the following compounds according to systematic and common nomenclature. N- HO EtO2C NH Br 1...

A: A question based on nomenclature of organic compounds that is to be accomplished.

Q: Guide Question/Exercise: 1. The half-life of sodium-24, a radioisotope used as a tracer for the card...

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Q: A hydrogen electrode is immersed in a 2.2 M solution of acetic acid at 25 °C. This electrode is conn...

A: The half cell reactions are, Anode: H2→2H++2e-Cathode: 2Fe3++2e-→2Fe2+Overall cell reaction: H2+ 2Fe...

Q: [References] Styrene, the building block of polystyrene, consists of only C and H. If 0.878 g of sty...

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Q: In a certain zinc-copper cell, Zn(s) + Cu2+(aq) – Zn2*(aq) + Cu(s) the ion concentrations are [Cu2*]...

A: Given reaction is :  Zn (s) + Cu2+ (aq) --------> Zn2+ (aq) + Cu (s)  [Cu2+] = 0.0234 M  [Zn2+] =...

Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for denta...

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Q: 2. Consider the transition for the H atom from n=4 to n=2. a) What would be the theoretical change i...

A: Given-> n(initial) = 4  n(final) = 2  

Q: 5. Empirical formula for C4Hsl4N2 Is. a) CH2IN b) C2H42N c) C2H2LN2 d) none of all

A: Empirical formula is the simplest whole number ratio of atoms present in a compound. Where as the mo...

Q: ​Weak base: 25 mL of 0.00255 M hydroxylamine HONH2 (Kb = 1.1 × 10-8) Strong acid: 0.001545 M HNO3.

A: When hydroxylamine is reacted with nitric acid, following reaction occurs: HONH2+HNO3→HONH3++NO3-

Q: 2. A solution that may contain Cu, Bi*, Sn*, or Sb2* is treated with thioacetamide in an acidic medi...

A: To identify:  What cations are present in the solution. Given:    Cu²+, Bi²+, Sn4+ , or Sb²+  When t...

Q: In the plot of lnK vs 1/T, data is not actually a straight line? What does this indicate about ΔH°? ...

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Q: The product A goes one epoxidation and  gives product B at 9:1 ratio diastereoselectivity. Now, Give...

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Q: Apply the Hückel approximation on the conjugated molecule, 1,3,5 – hexatriene, C6H8 to carry the fol...

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Q: Timer Calculate the molarity (M) of a solution prepared by dissolving 14.7 g of HCI in enough water ...

A: Molarity is defined as number of moles of solute dissolved per litre of solution.

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 308. kJ duríng a ...

A: Let us discuss the reaction and then solve the problem. 

Q: What is the goal of the lab on qualitative analysis of aqueous ions and solubility?

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Q: 4. A saturated solution of Magnesium hydroxide at 298 K contains 1.71 x 10-4 mol/L Mg2+ ions. Calcul...

A: Given :  [Mg+2] = 1.71 x 10-4 mol/L  Volume of Mg(OH)2 solution = 500 ml  Volume of NaOH solution = ...

Q: 2. Claisen a) Write the structure of the appropriate starting material that leads to the products sh...

A: Here we have to find the starting material needed to synthesize the given claisen condensation produ...

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 308. kJ during a ...

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Q: The compound is MX(M:2+cation, X:2- anion). Q1. schottky defects null= Q2. frenkel defects

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Q: How many grams of Al2(SO4)3 would contain 1.236 × 1020 atoms of sulfur? Mass of Al2(SO4)3 = grams

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Q: (Pages 325 - 331). An electron traveling at 4.6x105 m/s has an uncertainty in its velocity of 1.25x1...

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