the percent yield

Q: 1. List three criteria that is important to consider when choosing a solvent for recrystallization I...

A: Since you have asked multiple questions we will answer the first one for you. To get the remaining q...

Q: ОН H .N. .CH3 CH3 H,N

A: Here we have to predict the types of streoisomerism shown by the following compound. The streoisomer...

Q: Pick the correct answer. Assume equal concentration of solutions. As the magnitude of the K, of a se...

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Q: thermometer A 56.2 g sample of polystyrene is put into a calorimeter (see sketch at right) that cont...

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Q: mass

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Q: using the following thermochemical equation determine the % yield form the following reaction if 3.0...

A: Given mass of octane =3.080×10=30.80 g Molar mass of octane C8H18=8×12+18×1=114g/mol Mass of CO2 pro...

Q: ieer is H2(9)+I½(9) → 2 HI(g) At the temperature the engineer picks, the equilibrium constant K, for...

A: A chemical engineer is studying the following reaction: H₂(g) +I₂(g) → 2 HI(g) Q = [HI]2/[H2][I2] We...

Q: Why is it important to study the structure of crystalline solids?  pls answer within 20 mins. thank ...

A: Crystal structures depicts the arrangement of atoms in a material. The lattice parameter bond length...

Q: Acrolein test

A: The acrolein test is used to determine if oil or fat is present. When oil or fat is heated in the pr...

Q: What is the percent rate if a quantity is 1/1000 of the base?

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Q: A solution contains 9.82×10-3 M silver nitrate and 1.35×10-2 M zinc acetate. Solid potassium phospha...

A: Given,  [AgNO3] = 9.82 x 10-3 M  [(CH3COO)2Zn)] = 1.35 x 10-2 M  Solid potassium phosphate is added ...

Q: CPAP is the acronym for "Continuous Positive Airway Pressure".  A CPAP device is used in respiratory...

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Q: Ascorbic acid is one form of vitamin C and is known to contain only carbon, hydrogen, and oxygen. th...

A: Given,  The mass percent of Carbon = 40.91%  Hydrogen = 4.578% and Oxygen = 54.50% The mass of the c...

Q: An organic compound can have one of the following structures: The Amar of the ethanolic solution is ...

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Q: Data The following tables include calculated as well as observed and recorded data for Part 1 and Pa...

A: Answer :

Q: 1. Which of the following paired atoms 1 point is non-polar? * a. Br-F b. H-CI c. H-F d. H-P 2. Whic...

A: Here we have to determine polar and nonpolar bond, ionic and covalent bond, shape and dipole moment ...

Q: A metal crystallizes with HCP unit cell. Its density is 8.67 g/cm3 and atomic weight of 111.95 g/mol...

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Q: Gaseous butane (CH,(CH,),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

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Q: Calculate the Amax of the efhanolic solufion of the following compound.

A: 273 nm is the answer.

Q: reaction will occur, give the product(s) otherwise write no reaction. Also indicate if the reaction ...

A: The answer is as follows:  

Q: H H H H H H H H H H. H. H H H H H.

A: Given compounds are :  Which of the following chemicals would have a higher vapor pressure = ?  

Q: A metal has an atomic radius of 0.1335 nm. The volume of its cubic unit cell is 2.9305 x10-23 cm3. W...

A: Answer: To solve this question we have to find out the relation between atomic radius and edge lengt...

Q: What mass of excess reactant remains at the end of the reaction if 90.0 g of SO2 are mixed with 100....

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Q: Illustrate the mechanism of forming alkynes from a 1,2-dihalide and a vinyli halide. Show intermedia...

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Q: the reaction below, which face of the carbonyl did the nucleophile (SH) add to? HS O SH

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Q: Calculate q, AH and AU for the process during which 2 mol NO2 is heated at a constant pressure of 1 ...

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Q: 19.975 ģ Ar gas is compressed isothermally at 25 0C from 500 cm3 to 100 cm3. Calculate w when this c...

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Q: A reaction is found to be first-order with a rate constant of 0.00125 s–1. If the reaction initially...

A: Given,  Rate constant, k = 0.00125 s-1  Initial concentration, [A]0 = 0.25 M  Final concentration [A...

Q: Find the standard molar enthalpy for the reaction C + 1/2 O2 -> CO given that C + O2 -> CO2 Delta H ...

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Q: Draw the structure of (Z)-2,3-dichloro-4-methyl-2-hexene.

A: For E nomenclature, more prior group are on the opposite  side . For Z nomenclature  ,more prior gro...

Q: Use the following calorimetrically dtermined enthalphy changes to predict the standard enthalpy chan...

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Q: The concentration of barium ion in a solution is 0.010 M. What concentration of sulfate ion is requi...

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Q: Given: I2 (aq) ↔ 2I-(aq) Write the equation relating the two species:  [I-] = ______ a. (k1/k-1)2...

A: [ I- ]2  = k1 [ I2]  / k-1   [ I- ]2  = ( k1 / k-1 )  [ I2]  [ I- ]  = ( k1 / k-1 )1/2  [ I2]1/2  D ...

Q: ramp generator

A: This is a multiple questions. According to guidelines in multiple questions we can only solve the fi...

Q: OH HO. NH2

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Q: Selected bond dissociation enthalpies are given in this table. Polyvinyl chloride (PVC) is one of th...

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Q: A system does 435 kJ of work(w) and loses 312 kJ of heat(q) to the surroundings. What is the change ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: What is the relationship between the following two compounds?

A: Given compounds are representing stereochemistry of each center. and on the basis of stereochemistry...

Q: III. Convert the ff. cyclic sugar structures in Fischer formula into their corresponding Haworth for...

A: The first step in converting a Fischer to a Haworth is to draw in these wedges and to number the car...

Q: conditioners

A: In this question we have to explain the Name and describe the specific use of at least four types of...

Q: 1. If the reference range for serum Ca is 8.5-10.5 mg/dL, would a result of 2.3 mmol/L be within tha...

A: Given that, in serum the concentration of Ca2+ ion is 2.3 mmol/L. The molecular mass of Ca is 40.08 ...

Q: JUgging every day is good for health. Assume that when you jog a work of 500 kJ is done and 230 kJ o...

A: The above mentioned question is based on first law of thermodynamics which states that the change in...

Q: What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to prod...

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Q: Calculate the [H +], [OH -], pH , pOH of 0.005 M NH3 Kb= 1.8 x 10 -5

A: Ammonia is a weak base hence it dissociated less

Q: Write short hand notation for each reaction: (a) Fe + Ag+ → Fe2+ + Ag (b) VO2+ + O2 + H2O(l) → VO2+ ...

A: For writing the shor hand cell notation - the left-hand side anode is written and on the right-hand ...

Q: 6. 2 kg of H2NCOONH4(s) is sealed in a 50-L vessel. H2NCOONH4(s) = 2NH3(g) + C02(g) Kc = 0.215 a. Ca...

A: Given:  Mass of H2NCOONH4 = 2 kg = 2000 gm  Kc = 0.215  Volume = 50 L 

Q: A reaction performed at 1.00 °C exhibits a rate constant of 1.115 s–1. What temperature (in °C to th...

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Q: When a reaction that was known to release 17.55 kJ of heat took place in a calorimeter and containin...

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Q: How much KBr could dissolve in 50 g of H2O at 70ºC?

A: Solution is mainly of three types:-  Unsaturated solution  Saturated solution  Supersaturated soluti...

Q: What is the weight of nitric acid in 12.5N HNO3 solution? Use the following atomic weights H - 1 g/...

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".