enumerate 10 importance of fuel cells

Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

Q: Provide a radical mechanism and the radical product for the ring- opening reaction of the following…

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Q: Draw an organic molecule with the main chain being a "heptane" and containing an Ethyl side chain, 3…

A: Here we have to write the structure of the compound in the following given conditions.

Q: [T4] Balance the following redox equation, using the reductions table method. SO?- + Cr2+ Cr3+ + SO2…

A: The given unbalanced redox reaction is: SO42-+Cr2+→Cr3++SO2

Q: What is the total electron count of this complex? BAr". BArF4 СудР — Со — РСУ2 ČHĄSIME3 H-N-

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Q: Draw the 2d Lewis structure for AlCl-4

A: Draw 2-D lewis structure of AlCl4- .

Q: Draw the structure of Diborane. Write a note on the nature of bonds present in it.

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Q: What is the vapor pressure of 1000 g of a water solution at 25 Celsius that contains 124.0 g of the…

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Q: A) Given the following set of data, plot the chromatogram (absorbance versus volume of eluate). Vol…

A: To plot the chromatogram, the volume of eluate is taken as x axis and absorbance as y axis The graph…

Q: 7. What are the possible sources of error in this experiment?

A: Incorrect concentration determination when concentration of Fe3+ is more than that of Fe2+. The…

Q: 3. Answer all parts of the question. Compound A is thermally unstable, decomposing to release…

A: Phosphazenes are organophosphorus compounds (also known as P-N compounds) in which phosphorus atoms…

Q: If 4.27g of sucrose, C12H22011 are dissolved in 15.2 g of water, what will be the boiling point of…

A: Boiling point of solution is defined as the point at which vapor pressure become equal to…

Q: What is the major product of the following reaction? HBr ? 0°C (A) (B) Br Br (C) -Br (D) Br

A: Conjugated dienes can give 1,2 or 1,4 addition products in the electrophilic addition reactions. In…

Q: Titration of a 0.7513-g sample of impure NazB,07 required 30.79 mL of 0.1129 M HCI. B40,2+ 2H3O*…

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Q: - preparation

A: Given: Volume is 100 mL Concentration 0.25 M pH is 9.8 pKa of HCO3-=10.3Total millimoles=0.25×100=25…

Q: Give the product of this reaction  A. 3-methylpentane B. 2-methylpentan-3-ol  C.…

A: Grignard reagent :- alkyl magnesium halide is known as Grignard reagent. It is generally written as…

Q: 1. Give the IUPAC name of this compound: CH3OCH2CH3. dimethyl ether methoxyethane methylethyloxide…

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Q: In case of Ideal Gas law, PV=nRT, at what tempertaure in Kelvin does 0.750 mol of gas occupy at 114…

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Q: A closed system of water and water vapor at equilibrium is at a temperature of 30°C. If the…

A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on…

Q: 50. Sketch the shape of an s orbital and a p orbital.

A: We have to draw s orbital and p orbital.

Q: out the stepwise mechanism (include intermediates or transition state) for: CH3CH2OH CHCH2)3CBr…

A: Close observation of reactant will confirm the reaction mechanistic pathway which is SN1 for the…

Q: How would you prepare the following compounds from l-phenylethanol? More than one step may be…

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Q: What is the major product of the following reaction

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Q: Compound Structural Formula Theoretical Result (Short and Specific) dehyde dehyde e (2-propanone)

A: Solutio: We know when phenylhydrazine treated with carbonyl compound (aldehyde or ketone)…

Q: The Learning App Step -1 -Br - KBr" HO + K - 1/2 H, Step -2 H Он + K - 1/2 H, K* - KBr Ether…

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Q: (a) Which carbonyl compounds would CH3 CH3CH,CH2CH,CCH,OH (b) HyÇ OH (e) you reduce to produce the…

A: The compounds given are,

Q: How many moles of sucrose, C12H22O11 are contained in 1.12m sucrose with 150 g water?

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Q: What is the Normality

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Q: The Ksp of aluminium hydroxide, Al(OH); is 1.8 x 10*. Solve for the solubility of AI(OH)3.

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Q: HO 5. 6. NH CH,CH,CH Biology Environmental Scence -OK+

A: Given compounds are :  Give IUPAC names of the following = ?

Q: Draw the 2d Lewis structure for PO3-4

A: Draw the 2d Lewis structure for PO43- ?

Q: A solution contains 92.2g of methanol, CH3OH, dissolved in sufficient water to give a  mass of…

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Q: true or false? The following reaction equation is a redox reaction: HPO42- (aq) + NH4+ (aq) ⟶…

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Q: If 4.27g of sucrose, C12H22O11 are dissolved in 15.2 g of water, what will be the boiling point of…

A:

Q: Determine the molarity of a solution of potassium chloride that is prepared by dissolving 1.7385 g…

A: Molarity is defined as number of moles of solute divide by volume of solution

Q: ... 1300 Liquid Tie line a+ Liquid a + Liquid 1200 R- -S 20 30 40 50 Co Ca Composition (wt% Ni) (b)…

A: Given: 35 wt% Ni, 1250 °C To find: 1) what are the mass fraction liquid and the mass fraction solid?…

Q: Temperature of an iron block decreases from 850C to 250C. Calculate the heat lost by the block with…

A: Given data m = mass of iron block = 1200 g s = specific heat of iron block = 0.115 Cal/g-∘c Change…

Q: One type of iron nail is coated with another metal in order to reduce corrosion. A solution of the…

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Q: How much heat is absorbed by 100mL of boiling water? The molar heat of vaporization of water is…

A: The heat of vaporization of water is 40.7 kJ/mol, which states that 40.7 kJ of heat will be absorbed…

Q: This question is concerning the amino acid methionine.  a. Draw methionine in a way such that every…

A: There are two pH sensitive groups in the given molecule ethanol which are -NH2 and -COOH and the…

Q: What may have caused the separation of the dye components?

A: ✓The dyes are carried at different rates because they are not equally soluble. A dye  that is the…

Q: 36. Molten iron glows with a reddish-orange color. How is heat energy converted into light energy in…

A: The detailed solution of the given question is as under.   concept used here is from Heat , light…

Q: H. What is the IUPAC name of the compound, Answer:

A: We can write iupac name of the compound according to the given rule... 1.first we identify the…

Q: How many grams of copper(II)-nitrate react with 1.80 g of silver-nitrate in the presence of excess…

A: Given,  1.80 g of silver-nitrate in the presence of excess copper to produced mass of copper(ii)…

Q: Both UV/Vis and IR spectrometers can be used for quantitative analysis of analytes.   True   False

A: Given question is multiple choice question That is : Both UV/Vis and IR spectrometers can be used…

Q: The vapor pressure of solvent X is 56 mmHg at 30°C. When 5 moles of a nonvolatile solute Y is added…

A: The liquid molecules tend to convert into the vapour phase. In a closed container, the pressure of…

Q: 4. A solution contains 2.29 moles NaCl dissolved in sufficient water to give a total volume solution…

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Q: How many volume in liters is required in preparing 1N HCl using 50 grams of it? mwt is 37 g/mole

A: Normality is defined as number of gram equivalent of solute dissolved per litre of solution.

Q: A. What is the component concentration ratio, [NH3]/[NH4 + ] of a buffer that has a pH of 9.18? B.…

A: Here we can solve the given problem by applying Henderson Hassel-Blach equation .

Q: Calculate the 143Nd/144Nd ratio of a basalt after it has interacted with seawater, given the…

A: The solution of the given question is