Construct the expression for Kc for the following reaction. 2 Cu+(aq) + Zn(s) <---> 2 Cu(s) + Zn2+(aq) 3 H2(g) + 6 C(s) <---> C6H6(g)

Q: Four runs are performed by mixing the reagents as indicated at 25 °C. concentration of each reactant…

A: We are given a reaction and it's reagents used.  The reaction was done in 4 runs, and we are given…

Q: The toxicity of DDT (C14H9CI5) led to a ban on its use in the United States in 1972. Determinations…

A: Molecular formula of DDT - C14H9Cl5 Molecular Mass of DDT - 354.49 g/mol Number of moles = mass of…

Q: A concentration, C (mol/L) varies with time, t (min) according to a valid empirical equation (Q-1)…

A: Given equation: C = 3.00 e-2.00t

Q: measurement of volume capacity of volumetric flask: please help me fill in the blanks Temperature of…

A:

Q: ОН N Ni2+ + 2 Ni + 2H+ ОН DMG FM 116.12 Bis(dimethylglyoximate)nickel(II) FM 288.91 FM 58.69 If the…

A: Amount of Ni present in the steel = (3/100) x 10 = 0.3 g Moles of Ni present = 0.3 / molar mass of…

Q: The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4lag)…

A: Given ksp of CaSO4 = 2.4 x 10-5 Volume of solution = 1825 mL Concentration of Ca3(PO4)2= 0.125 M To…

Q: Following the directions in the laboratory manual, you create Standard 2 by transferring the…

A: Calculate the total volume of mixture of solution in the test tube. i.e.…

Q: AICI3 cl) OZN-Hg, HCI

A: The first step is Friedel craft acylation. In this step, benzene reacts with acyl ion. The second…

Q: The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10*5 and a professor made 1825 mL of a CaSO4(29)…

A: Ca+² = 0.375 M + ( 6.39 × 10-⁵ M ) Ca+² = 0.375063 M   The new Concentration (Molarity) of Ca+² =…

Q: The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 so if a professor made 1825 mL of a…

A: Ksp = [Ca2+][SO42-] if solubility is s mol/L then: Ksp = s2 Number of mol = Molarity x Volume in L…

Q: [OH-] = 1.0 × 10-7 Express the concentration to two significant figures and include the appropriate…

A: Calculate hydronium ion concentration of the folowing---

Q: A student creates a calibration plot for serial dilutions of Cu(NO3)2. A graph of concentration in M…

A: (a) y = 0.345x -0.11 Absorbance = y = 0.655 0.655 = 0.345x -0.11 x = 2.22 M   (b) Molarity = Mass %…

Q: A chemical factory has been illegally disposing their chemical wastes without necessary…

A: Given, Site                                   A                          B…

Q: A student dissolves 30 g of an unknown compound in 50 g of water at 39 °C. What is the unknown…

A: Since the student is able to dissolve 30 g in 50 g of water hence it means that he will be able to…

Q: 4. Br MeO Meo Me 5. Me Meo

A: 4. Ylide preparation followed by Wittig reaction. 5. Ylide preparation followed by Wittig reaction.…

Q: In this experiment, your goal is to determine the amount of lead present in a water sample and, if…

A: Maximum allowed concentration of lead in drinking water are 0.01 mg/l and 0.015 mg/l. Amount of lead…

Q: 2. For his second experiment, Samuel uses vinegar instead of acetic acid powder. He sets up three…

A: Given that : The data for the three trials is given below :

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

A: Given, the balanced equation: Fe(s) + CuSO4(aq) → Cu(s) + FeSO4(aq) The volume of copper(II)…

Q: The rate at which a solid substance dissolves varies directly as the amount of undissolved solid…

A: Given, 2 grams of A dissolves in 1 hour

Q: The solubility of Ca(OH)2 is measured and found to be 0.912 g/L. Use this information to calculate a…

A: 1- First calculate the molar solubility of Ca(OH)2 :  Molar solubility(S) = [ solubility / molar…

Q: Fe(NO3)3(aq) Cu(NO3)2(aq) Submit 2 L 1 M Undo 1 L 2 M Reset Fe+ Fe3+ Fe NO, 3 L NO, NO, NO, NO,- 3…

A: The above mentioned question is explained below :

Q: Identify the type of error (systematic or random) for each of the following situations below and…

A: Systematic error : it is repeatable error and consistent . it can be done by the analysts . it comes…

Q: 1) Mass of aspirin used (g) 0.088g 2) Absorbance for final unknown solution (measured) 3) Molarity…

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Q: A. Standardization of NaOH Solution TRIAL [HCI] Volume Moles Moles Volume [NAOH] HCI НОEN 25.75 IOH…

A:

Q: One of the standard solutions used in preparing the Calibration curve in Figure 1 was a 88.5 mM…

A: Given -  Molarity of Cr(NO3)3 Solution = 88.5 mM  =  88.5×0.001 = 0.0885 M  And, volume of this…

Q: 4AI203 + 3CH4→ 8AI + 3CO2 + 6H20 AH° rxn kJ exo ? endo thermic AH° = -1676 -75 -394 -242 kJ/mol…

A:

Q: Dissolution 0.01 M HCI Distilled H20 Concentration (mg/ml) Total amount Concentration (mg/ml) Time A…

A: Dissolution is the process where a solute in gaseous, liquid, or solid phase dissolves in a solvent…

Q: A 1 mL sample of glycogen was calculated to contain 35 µmol (micromole) glucose. To 1 mL of this…

A: Given, Volume of sample of glycogen = 1 mL Moles of glucose = 35 micromole HCl volume = 2mL…

Q: Data Set Exp.5 Use the following data to determine the mass percent of the active ingredient in…

A: Calibration curve It is the standard curve used to determine the concentration of unknown sample…

Q: Sample B 0.110m Sample C 0.110m 0.110 m 8. Molarity of NaOH solution (average from part A) 0.00ml…

A: SAMPLE A The neutralization reaction for acetic acid with NaOH is, CH3COOH(aq) + NaOH(aq) →…

Q: What is the mass percent of Fe for each trial ?   Mass of (NH4)2Ce(NO3)6 (in 100.00 mL) =   4.5038…

A: The balanced chemical reaction between Fe2+ and Ce4+ is:   Fe2++Ce4+↔Fe3++Ce3+

Q: Classify the following reactions whether they are homogeneous or heterogeneous: 1- PbCl2 (s) 2NH3…

A: In a reaction, reactant and product both are present. There are many types of reaction…

Q: In a Spec-20 experiment a student took 4.3178g of an unknown material containing cobalt and…

A: Given data,Mass of sample=4.3178gMolarity of Co solution=0.075MVolume of solution=250mL=0.250L

Q: ml. meles CUSO. meles NH. ml. meles cone conc 0.1 M CuSO. 2.5M Cu(NH) Ce(NH) NH. formed 0.0001…

A: First we need to write a balanced chemical reaction for formation of Cu(NH3)42+ . The using ICE…

Q: A solution of potassium hydroxide KOH was prepared by dissolving 1g of it in 100ml of distilled…

A: Moles of KOH = Mass/Molar mass = 1g/(56.1g/mol) = 0.0178moles Mass of water = Density Volume =…

Q: The standard concentration of a CdCl2 barium chloride solution containing 562 mg / liter is…

A: Note : CdCl2 is cadmium chloride but in question Barium chloride is written .Therefore name should…

Q: student creates a calibration plot for serial dilutions of Cu(NO3)2. A graph of concentration in M…

A: Introduction :  Percent error is an expression to let know the difference between calculated value…

Q: 3-6 3 SOLUTIONS AND NAME SOLUTION CONCENTRATIONS 1415 Section Pre-Lab Assignment Experiment…

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Q: NAOH (ag) + HCI NaCl (ag) + H20 (1) (aq) -> 31.88 mL of 0.09951 M NaOH was used to titrate 7.00 mL…

A: We will calculate moles of NaOH , then moles of HCl and at last molarity of HCl.

Q: Ksp = 3.2 x 105 for PbCl2. Which of the following mixtures will form a precipitate of PbCl2(s)? X.…

A:

Q: 3. Now that you know the physical state of each of the reactants and products in this chemical…

A: The substances take part in a reaction are called reactants. The substances formed after a…

Q: In chemistry class, a student conducted an investigation about factors affecting the solubility of…

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Q: A commercial cola brand states that the cola contains 45 mg phosphorus per 250 mL serving. Calculate…

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Q: For this lab, 2 Lof 0.0020 M Fe(NO3)3 needed to be prepared. How many grams of Fe(NO3)3 needed to be…

A: Molarity is moles of substance present per liter volume.  Molarity= moles of substance/ volume From…

Q: Lab 1. Students study the reaction Znis) + 2 HCKaq) → Halg) + ZnCllag) In Trial 1 they use a single…

A: The principle applicable here is the rate of reaction will depend upon the surface area of the zinc…

Q: ZI 2. C Your Task | X C Please Ans x E Untitled de X G differences X V Other Resc X tChemistry x M…

A: The functional group of a molecule is a key component that is responsible for providing the…

Q: a 25.00 mL aliquot of vinegar was diluted to 250 mL in a volumetric flask. Titration of 50.00 mL…

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Q: Determine the volume of glacial acetic acid to prepare 500 ml of a 0.020 M acetic acid solution…

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.