When making the stocks and standards for the spectroscopy analysis, a student forgets to add ethanol to the salicylic acid. How will this technique error likely affect his results? Explain your answer

Q: Part B The titration of 0.5538 g of KHP required 25.89 mL of an NaOH solution to reach the…

A: KHP is actually Potassium hydrogen phthalate which is a monoprotic acidic salt compound. It reacts…

Q: A 1.45 g sample of acetic acid , HC2H3O2 was burned in excess oxygen in a bomb calorimeter. The…

A: We have to predict the heat of combustion.

Q: The measured nuclear mass of I-126 is 125.876548 amu. Calculate the nuclear binding energy for I-126…

A: Binding energy = mass defect × 931.5 MeV

Q: Calculate the energy required to heat 0.20 kg of water from 30.3 °C to 50.9 °C. Assume the specific…

A: Heat gained = q = Mass * Specific heat capacity * Temp change

Q: Given :           (1) 2NF3 + 2NO  → N2F4  + 2ONF     ∆H= -82.9 kJ           (2) NO + ½ F2  → ONF…

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Q: The rate constant of a first order reaction is 4.60 x 10 ^-4 s^-1 at 350C . If the activation energy…

A: we need to find the value of temperature when rate constant is 8.80 x 10^-4 s^-1.

Q: A gas sample iş initially at 3.08 atm and 6.80 L. If the volume is adjusted to 9.75 L, what is the…

A: Keeping temperature constant, we Solve the question using the formula    P1 = initial pressure =…

Q: The specific heat of nickel is 0.444 J/g 0C. If 50 J of heat is added to 32.3 g sample of nickel at…

A: Final temperature of the sample = ? Specific heat, c = 0.444 J/g 0C. Heat, Q = 50 J Mass, m = 32.3 g…

Q: What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 40.00 mL of 0.10 M…

A: Weak acid are those which does not dissociate completely in aqueous solution. Here all CH3COOH are…

Q: QUESTION 3: Write the following half reaction per 1 electron. 1) Cr(III) to Cr(II) 2) Zero valent Fe…

A: Here we have to predict the half reaction in which one elctron transfer occur.

Q: Hydrogen gas was cooled from 373 K to 283 K. Its new volume is 750.0 mL. What was the original…

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Q: 36  The reaction C2H5Cl →C2H4  + HCl is first order in C2H5Cl. The rate constant is 1.60 x 10-6/s.…

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…

Q: The thermal decomposition of phosphine into phosphorus and molecular hydrogen is a first order…

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Q: Draw the structure that formed between alpha-L-Erythrose with the amino acid Asparagine and label…

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Q: How many grams of a gas with a molar mass 146.42 g/mol would be required to occupy a 868 mL flask at…

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Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas…

A: Given data :

Q: The decomposition of N2O5 is a first –order reaction with a rate constant of 0.420  min-1. If the…

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Q: The reaction C2H5Cl →C2H4  + HCl is first order in C2H5Cl. The rate constant is 1.60 x 10-6/s. In an…

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Q: An arctic weather balloon is filled with 44.0 L of helium gas inside a prep shed. The temperature…

A: Given: Initial volume of gas = 44.0 L Initial temperature of gas = 10.0oC Final temperature of gas =…

Q: 6. An example of the type of cell described in question 5 can be represented as Mg(s) Mg (0.025 M)…

A: Given-> Mg(s)/Mg2+(0.025M)//Mg2+(1.5 M)/Mg(s)

Q: Given:  (a) BCl3 + 3H2O →H3BO3 + 3HCl                    ∆H =-112.5kJ   (b) B2H6 + 6H2O →2H3BO3 +…

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Q: 217. mg of an unknown protein are dissolved in eñough solvent to make 5.00 mL of solution. The…

A: Given :  Mass of protein = 217 mg  volume of solution = 5.00 mL  Osmotic pressure = 0.0364 atm…

Q: Explain why the molecule below CANNOT be FLAT

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Q: A balloon with at the surface of the ocean has a volume 3.7 L, a pressure of 1.0 atm and a…

A: Gas laws , PV = nRT  P1V1/T1 = P2V2/T2

Q: Choose all of the processes from below which describe changes which are independent of the path by…

A: A multiple choice question based on chemical thermodynamics that is to be accomplished.

Q: using the starting material (on the left) to determine the sythetic route which will be the most…

A: Note : First disconnect the bonds. Then you will get the synthons. Start synthesis from 1-Ethyl…

Q: Set up a Hess's law cycle, and use the following information to calculate AH, for aqueous nitric…

A: To calculate enthalpy of formation , we first need to write a reaction for formation of HNO3 using…

Q: d. If 464mL of an ideal gas is at 27°C and 1.05atm, what will be new volume at STP? Gas Law: Solve…

A: d. Given: The initial volume, V1= 464 mL The initial temperature, T1=27 + 273=300 K  The initial…

Q: At a certain temperature the vapor pressure of pure àcetyl bromide (CH, COB1) is measured to be 395.…

A: Raoult's Law :-  It states that, For a solution of two volatile liquids, the partial vapor pressure…

Q: REDOX REACTIONS: Work neatly to balance these equations using the half-reaction method.  P4 --->…

A: Balance these equations using the half-reaction method.

Q: redict the major products of each of the following reactions. CH3 Br,/CCI4 он е. + CH3 HNO3 Br2 f.…

A: ->If electron donating group attached then it increases electron density in ring and it is ortho…

Q: For a reaction in which A and B forms C, the following data were obtained from the experiment:…

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Q: A chemist fills a reaction vessel with 1.32 atm methanol (CH,OH) gas, 9.24 atm oxygen (0,) gas, 8.01…

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Q: Explain this phase diagram of copper and nickel briefly

A: A phase diagram represent the variation in the physical state of a substance under different…

Q: 2. Rank the following species in order of INCREASING nucleophilicity (1= least nucleophilic a. "CN…

A: To think about the Nucleophilicity one must know about the nucleophile.  Nucleophile- Nucleophile is…

Q: Incorrect Mechanism (The mechanism is for the formation of the 1,4 product. Please ignore the 1,2…

A: Note : 1,3-butadiene reacts with proton produces the allylic carbocation. Allylic carbocation…

Q: When 2.19 g of a certain molecular compound X are dissolved in 100. g of formamide (NH, COH), the…

A: To Calculate molar mass , we would first Calculate depression in freezing point using freezing point…

Q: A 2.86 g magnesium chloride, MgCl2 (MW = 95.211 g/mol) in a 1L solution at 25°C has an osmotic…

A: Weight of magnesium chloride= 2.86g MW of MgCl2=95.211g/mol  Volume=1L Osmotic pressure=2.15 atm…

Q: Answer question in the picture: Also the info you need that in the picture it says refer to ALEKS…

A: For the given redox reaction, 1) The balanced equation for the half reaction takes place at the…

Q: A chemistry graduate student is given 450. mL of a 1.40 M nitrous acid (HNO, solution. Nitrous acid…

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Q: e reaction rate law applied to the reaction aA + bB → AB gives the expression a. roc[A]°[B]*[AB] b.…

A: For the given reaction aA + bB → AB

Q: Based on below information, answer the question. Let's consider the proposed reaction mechanism…

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Q: if i need to make  225 L of a 0.5 M LiCl solution , how much of the original 2 M LiCl solution do i…

A: Given :-  Initial concentration = 2 M  Final concentration = 0.5 M  Final volume = 225 L  To…

Q: Question 7 At STP a sample of gas with a mass of 28.4 grams occupies 9.70 L. What is the molar mass…

A: At standard temperature pressure one mole of gas occupies 22.4 L 22.4 L of volume is occupied by = 1…

Q: Lithium, is used in dry cells and storage batteries and in high temperatures lubricants, it has two…

A: Given- M1=6.01521 M2=7.016003 A1 (%)=7.50 A2(%)=92.50

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

A: It is given that 214 kJ of heat flows out of the system, thus the reaction is exothermic.  As heat…

Q: If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the…

A: Polarity of various molecules

Q: REDOX REACTIONS: Work neatly to balance these equations using the half-reaction method. 1. MnO4- +…

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Q: Enumerate at least 2 specific biological applications of precipitation titration and discuss each.

A: Precipitation titration : It is a titrimetric approach in which precipitates are formed throughout…

Q: Cl, +2 e-→ 2 CI +1.36 V CuCl,(1) → Cu(s) + Cl;(g) The electrolysis of molten copper(II) chloride is…

A: