Lab report I chem 2753

Construct the expression for Ksp for solid Ba³(PO4)2 in aqueous solution. Ba3(PO4)2(S) = 3 Ba²+(aq) + 2 PO4³-(aq) 1 Based on your knowledge of how the solid will dissociate in aqueous solution, construct the expression for the solubility constant, Ksp. Each reaction participant must be represented by one tile.. [Bas(PO4)2] [Ba²+] [PO4³-1² 2[Bas(PO4)2] 3[Ba²+] 3[PO4³] Ksp 3[Bas(PO4)2] [Ba²+]³ [PO4³-1³ = [Bas(PO4)2]² [PO4²-] [Bas(PO4)2]³ 2[PO4²-] [Bat] [PO4²-]² 3[Bat] [PO4³-] RESET [Ba+]³ 2[PO4³]

You carry out an experiment on the physical properties of 3 organic compounds and observe the following data: Substance Solubility in Water medium Compound A low Compound B high Compound C You know that the 3 organic compounds are an alkene, ketone and alcohol of equal hydrocarbon length. Match the compounds above to their specific organic compound type based upon their solubility. And give a structural reason for the solubility observations that are observed. Substance Identity Reason Compound A Compound B Compound C

What is the role of sodium and chloride ions in this experiment

7. Copper(I) chloride salt is added to a solution of pure water to make a saturated solution. Upon dissolving, the concentration of copper(I) ion was found to be 4.15 x 10-4. What is the Ksp of copper (I) chloride? ©2022 F'22/S'23 Chemistry II A: 1.72 x 10-7 131

Construct the expression for Ksp for solid ZnCO 2 in aqueous solution. 3 ZnCO₂(s) Zn2+(aq) + CO2 (aq) Based on your knowledge of how the solid will dissociate in aqueous solution, construct the expression for the solubility constant, Ksp. Each reaction participant must be represented by one tile. Ksp = RESET [ZnCO₂] 2[ZnCO₂] [ZnCO₂]² [Zn+] 2[Zn+] [Zn+]² [Zn2+] 2[Zn2+] [Zn²+]² [CO] 2[CO₂] [CO]² [CO2] 2[CO2] [CO₂2-12

After the neutralization reaction of 42% 0.5 mL nitric acid and 0.28M 18 mL sodium hydroxide, a temperature increase of 15 ° C was observed and the temperature value was determined as 825 cal. According to these results;   a) Number of moles of neutralized base ................. ...................... b) Reaction enthalpy .................. ................. Reaction according to enthalpy value ................ .................. c) The constant of the calorimeter in terms of water ............................ .....................   (d (HNO3) = 1.51g / mL; M (HNO3) = 63.01 g / mol) Note: enter only required numerical values and units in the spaces in the question.

Write the Ksp expression for the sparingly soluble compound barium phosphate, Baz(PO4)2. Ksp = A₂ If either the numerator or denominator is 1, please enter 1

The efficiency of a particular catalyst is highly dependent on its zirconium content. The starting material for this preparation is received in batches that assay between 68% and 84% ZrCl4. Routine analysis based on precipitation of AgCl is feasible, it having been established that there are no sources of chloride ion other than the ZrCl4 in the sample. What sample mass should be taken to ensure an AgCl precipitate that weighs at least 0.372 g? Mass of the sample =______ g If this sample mass is used, what is the maximum mass of AgCl that can be expected in this analysis? Mass of AgCl  = _______  g To simplify calculations, what sample mass should be taken to have the percentage of ZrCl4 exceed the mass of AgCl produced by a factor of 100? Mass of the sample =  _______ g

Select one answer for each question. For each question, the response write the rationale for selection as supportive. In a dynamic Brownian movement of particles in a sample solution, which of the following factor will fundamentally apply? A.Larger particles will move slower only in the beginning of the process, due to the presence of the smaller particles in the environment. B.Smaller particles will move rapidly based upon their own mass, and under the influence of solvent molecules. C.Both larger and smaller particles move at the same speed motion.

5. In preparation for the analyses of other types of samples that may reach your laboratory, the supervisor tasked you to research different extraction procedures for the analyses of Tetrahydrocannabinol (THC) and other related compounds so that you can purchase different extraction instruments. How will you convince him to buy a Supercritical Fluid Extraction Instrument? C

A gallon of methyl ethyl ketone (MEK) is spilled in a room which is 20'x15'x10'. Given static conditions, what is the concentration in the room? A. 12,237 ppm B. 12, 327 ppm C. 13,227 ppm

Please give me very detailed solution.

Table 1 Experiment Temperature of solution Exp k 273 Time for Color change(s) 12345 6 1457 278 1077 288 485 293 359 298 208 303 (equation 6)= k, = 2. 3. n In 1- 47 Determine the value of n (Equation (6)) from the concentrations of the solutions. Plot In 11/n versus 1/T and determine the activation energy for the reaction from the slope. Include the graphs in your report. 4. Determine the pre-exponential factor A from the intercept of your graph. 5. Determine the rate constants k₁ and k₂ at 25°C.

Briefly explain the principles involved in the separation of the components of a mixture by solvent extraction.

3. A sealed glass vial is prepared with 4 mL of air and 36 mL of water. Trichloroethylene (TCE) is added to the water to create an initial aqueous phase concentration of 100 ppb (a) (b) After the system equilibrates, what will the concentration of TCE be in the aqueous phase (in µg/L)? Determine the % mass partitioning of TCE between the water and the air when equilibrium is established. (c) If a quantity of TCE is accidentally spilled into a well-mixed river, where would you expect most of the TCE to end up in the short term - in the air or in the water? Explain.

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An experiment was performed in a similar manner as Experiment 4 (The Hydrolysis of t-Butyl Chloride). The following data was obtained: Total Time (s) Volume NaOH Titrant used (mL) 46 2.01 91 3.97 131 5.98 175 8.03 220 10.00 266 11.99 311 14.01 357 15.97 401 17.98 450 20.02 Final Volume NaOH to fully react sample: 85.01 mL Assume the proposed reaction mechanism in the experimental procedure is correct. Based on the above measurements, how many minutes would it take for the solution to reach 81.0% completion? Round your final answer to two decimal places.

In any manufacturing process, reaction monitoring ensures that a chemical reaction proceeds as expected. Table 1 shows the monitoring data for the formation of chlorohexane, collected using a technique called gas chromatography. Note that the concentrations of the chlorohexane solutions are given in millimoles per litre (mmol l–1). The abbreviation mM (millimolar) is frequently used. Plot a graph of the data in Table 1. The graph should be drawn on graph paper or use fine grid if it’s drawn on Excel. Elapsed Time/Hours  Concentration of Chlorohexane/mM 0 0 2 40 4 65 6 80 8 90 10 95 12 99

Write the equilibrium expression K. for catalytic methanation. CO(g) + 3H2(g) CH4(g) + H2O(g) K(forward) = And write the K, for the reverse of catalytic methanation. CHĄ(g) + H20(g) 2 CO(g) + 3H2(g) K(reverse) =

Answer clearly and quick

Compute for the numerical value of the gravimetric factor required to convert the given precipitate into the desired analyte. 1. Magnesium ammonium phosphate (MgNH4PO4) precipitate into phosphorous (as diphosphorous pentoxide, P2O5). 2. Magnesium ammonium phosphate hexahydrate (MgNH4PO4.6H2O) precipitate into nitrogen.

solve within 30-40 mins and get multiple upvotes

Bromine monochloride is synthesized using the reaction Br₂(g) + Cl₂(g) = 2 BrCl(g) Кр = 1.1 x 10-4 at 150 K A 207.0 L flask initially contains 1.002 kg of Br₂ and 1.148 kg of Cl₂. Calculate the mass of BrCl, in grams, that is present in the reaction mixture at equilibrium. Assume ideal gas behavior. mass of BrCl: What is the percent yield of BrCl? percent yield: 6.D g %

The efficiency of a particular catalyst is highly dependent on its zirconium content. The starting material for this preparation is received in batches that assay between 68% and 84% ZrCl4. Routine analysis based on precipitation of AgCl is feasible, if having been established that there are no sources of chloride ion other than the ZrCl4 in the sample.  (a) What sample mass should be taken to ensure an AgCl precipitate that weighs at least 0.400g?  (b) If this sample mass is used, what is the maximum mass of AgCl that can be expected in this analysis?  (c) To simplify calculations, what sample mass should be taken to have the percentage of ZrCl4 exceed the mass of AgCl produced by a factor of 100?

Lactase is an enzyme that breaks down the sugar lactose which is commonly found in dairy products. Some people develop lactose intolerance as they grow older and the amount of lactase enzyme in their gut diminishes. Since the enzyme is commonly found in the gut of humans it can withstand a pH that is very acidic, ranging from a pH of 2-7. A student decided to do an experiment to determine how the pH of a solution affects lactase enzyme activity. Lactase works by breaking lactose into its two component sugars of glucose and galactose.   To conduct the experiment the student prepared a solution of lactose and placed it into 5 different test tubes. A pH buffer solution was then added to each test tube with a pH of 2.0 in the first tube, 4.0 in the second, 6.0 in the third, 8.0 in the fourth, and a 10 pH in the fifth. Next, the enzyme lactase was added in equal amounts to each test tube and allowed to sit for ten minutes white the enzyme reacted with the lactose. At the end of the ten…

Construct the expression for Ksp for solid Ba3(P04)2 in aqueous solution. Вaз(РОa)2(s) — З Ва" (аq) + 2 РО,3 (aq) 1 Based on your knowledge of how the solid will dissociate in aqueous solution, use the tiles to form the expression. Ksp CRESET [Ba3(PO4)2] 2[Ba3(PO4)2 3[Ba3(PO4)2 [Ba3(PO4)2l [Ba3(PO4)21° [Ba*] 3[Ba*] [Ba*j [Ba"] 3[Ba2*] [PO,?] 2[PO,] [PO,7? [PO,] 2[PO,] [PO4 3[PO,°] [PO,]°

what is solution homogenous catalysis?

For a certain reaction, a graph in which the natural log of vapor pressure is plotted along the y-axis and 1/T is plotted along the x-axis produces a straight line with slope equal to -4,091 K. What is the activation energy of the reaction, in kJ/mol? Report our answer to four significant figures. Do NOT include units in your answer.

please help, im not sure if my part 1 and 2 are right.

Treat your data sets independently. Enter your data in two columns in a spreadsheet. Your goal is to plot In K vs. 1/T (remember to use the absolute temperature). To determine K, you need to calculate the concentrations of all species that appear in the equilibrium expression. Do this as follows: [COC142-]: Use Beer's Law to calculate this concentration ( = 572 L mol-1 cm-1). However, you need to "adjust" your measured absorbance. Since both compounds absorb at 692 nm, not all of the light absorbed is due to the blue, chloride species. A small amount is due to the pink, aquo complex. Fortunately, this is a small amount, but it becomes important when the concentration of the chloro complex is very low. To compensate, divide the absorbance of the [Co(H2O)6]2+ at 511 nm by 29 ( this is the ratio of the molar absorptivity of this complex at 512 nm to that at 692 nm) and subtract this value from every absorbance measurement in your data set.* Use this "adjusted" absorbance to calculate the…