A student starts the recrystallization of benzoic acid experiment with 0.592 g of crude material. After recrystallization they recover a sample of benzoic acid weighing 0.305 g of pure benzoic acid. The molecular weight of benzoic acid is 122.1 g/mol. Calculate the percent recovery of benzoic acid. Please show your work and round your answer to the nearest whole number.
Q: Write condensed structural formulas and give the IUPAC name for each structural isomer of C2H4Cl2
A: Condensed Structural Formula represents the organic molecules in a line of text. This consists the…
Q: CI Br CI -CBr H is this an enantiomer?
A: No, In a single molecule we cannot say enantiomer.
Q: 10. A multi-step reaction involving hydrogen peroxide and iodine anion is thought to have the…
A:
Q: What is the molality of ions in a 0.283 m solution of (NH₄)₃PO₄ assuming the compound dissociates…
A: Given that molality of (NH₄)₃PO₄ = 0.283 m The molality of ions produced from a 0.283 m solution of…
Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…
A:
Q: Identify the stereocentres, any, in the following structure. The carbon atoms have been numbered for…
A: We have given two questions. In one question, we have to tell which carbon atom is steteocentre.In…
Q: How many atoms of calcium are consumed if 7.53 grams of calcium nitrate are produced?
A:
Q: Q46: Is the molecule chiral? Does it contain planes of symmetry? Bril.. "Br
A: plane of symmetry is the plane which separate the molecule into two equal half .
Q: 1. Dinitrogen pentoxide, N₂O5, decomposes via the following reaction: 2N2O5(8)→ 4NO₂(g) + O₂(8) -1…
A: Given -> 2N2O5(g) -----> 4NO2(g) + O2(g)
Q: Calculate the mass in grams of each sample 4.8×1025 O3 molecules to g Express your answer using two…
A:
Q: Consider the compound 2,4-dimethyl-3-isopropylpentane. How many unique radical structures can be…
A: Given -> 2,4-dimethyl-3-isopropylpentane
Q: Consider the zeroth order decomposition of A with an initial concentration of 4.0 M. If k= 0.0235…
A:
Q: If I have this chart measuring time and temperature change what would be my final temperature? Time…
A: Given: Temperature v/s time data.
Q: сто 3. The balanced chemical equation between nitric acid and sodium carbonate: 2 HNO3 aq) +…
A:
Q: a. What observation would you record as evidence for reaction from Equa- tion 3.16? Na₂S (aq) + 2HCl…
A:
Q: d. Write the equation of state for and ideal gas and a Van der Waals gas 1. Ideal Gas 1. 2. Explain…
A:
Q: Does methane contain a plane of symmetry?
A:
Q: Which compound will you precipitate from solution by adding HCI? Benzoic acid Odiethyl ether…
A: We have to find Which compound forms precipitate from solution by adding HCI
Q: Please answer all parts. determine the hybridization around the atoms. 1.CO 2.HCN 3.CH3NH2…
A: Here we have to determine the hybridization of atoms in the following molecules. Hybridization=…
Q: Calculate the pressure (in atm) at which the freezing temperature of water is -20°C = 253 K. H₂O(s)→…
A: To find out the pressure of at which the freezing temperature of water becomes -20°C that is equal…
Q: OTBS Ph I h Me Me Ph Ph PH Ph BF₂ OE₂
A: As per the rules, only the first question can be answered. Please resubmit for the other questions.
Q: For the reaction shown, calculate how many moles of each product form when the given amount of each…
A: Given -> C3H8(g) + 5O2(g) ----> 3CO2(g) + 4H2O(g) Mole of O2 = 4.9 mole
Q: Draw the Citric acid cycle pathway, then identify and label the different types of organic reaction…
A: To draw the citric acid cycle pathway and identify the different types of organic reaction taking…
Q: Write the electron configuration for argon, Z=18. Express your answer in order of increasing…
A: Electronic configuration is basically the distribution of electrons in different orbital. Electrons…
Q: You have a solution of HIO3 with a mass percentage of 15.8% m/m and a density of 1.101 g/mL. You…
A: Given the w/w% of HIO3(aq) solution = 15.8 % w/w or m/m Given the density of the 15.8 % w/w, d =…
Q: one of the two boxes below, draw a wedge and dashed wedge structure (picture) of CH3Cl that best…
A: Jacobus Can't Hoff suggested that four atoms to which carbon is bonded sit at the corners of a…
Q: In what ways is a cell like a pot of soup? Select all that apply. The majority of it is water It is…
A: Answer is - Tha majority of it is water
Q: What are the overall goal(s) for the Food Dye Project? (Select all that apply.) Quantify the amount…
A: The main goal of food dye project is to increase appearance or to make it attractive.
Q: Calculate the mass in grams of each sample 3.9×1022 SO2 molecules to g Express your answer using…
A:
Q: When 7.0522 g of an unknown nonelectrolyte is dissolved in 150.45 g of water the freezing point is…
A:
Q: 1. Draw the mechanism and predict the major product for each of the following reactions to NH₂ OH…
A:
Q: Predict in order of reactivity (1 being the slowest, 3 being the fastest) of primary, secondary, and…
A:
Q: Analyze a mechanism, including molecularities; write a net reaction; and identify any catalysts or…
A: Answer: Molecularity is related to step of the reaction while order of reaction is the power of…
Q: 3. Draw the constitutional isomers of C4H8O. Name and draw only the structures that don't have…
A: Constitutional isomers :- The isomers which have same molecular formula but difference in the…
Q: What is the difference between a stereocentre and a chiral molecule?
A: Definitely, the stereocentre and a chiral centre both are the different things.
Q: QUESTION 6 If the atmospheric pressure is 190 torr, what is the pressure of the enclosed gas in a…
A:
Q: 1X10²1 mo
A: Number of mole is calculated by dividing the given mass with molecular mass. Avogadro number is…
Q: Q2. Fill in the table Element Sulfur Aluminum Carbon (graphite) Magnesium Copper lodine Iron…
A: We are given different elements(metals and nonmetals), and we have to find their atomic symbol,…
Q: 2 mL of Brillian Blue FCF was mixed with 98 mL of water, total of 100 mL. What's the concentration…
A: Given -> Volume of Brillian blue FCF = 2 ml Volume of water = 98 ml Total volume = 100 ml =…
Q: Does CHBrClF contain a plane of symmetry? is it chiral and does it contain a stereocentre
A: Chiral carbon: The sp3 hybridized carbon atom that is attached to the four different types of atoms…
Q: For the reaction shown, find the limiting reactant for each of the following initial amounts of…
A:
Q: 13. (a) . ] Determine the reduced temperature, reduced pressure and reduced molar volume of a sample…
A:
Q: Q45: How many stereocentres are present in the molecule? Bri.. H CI -CBr H
A: Stereocentres are the count of the chiral centres and the stereocentres without chiral atom.
Q: Part 1: Which atoms of which elements has the following electron configuration (using the orbital…
A:
Q: Use the References to access important values if needed for this question. The compound methanol,…
A: Given, Reaction : 2CH4O(I) +3O2(g) →2 CO2(g) +4H2O(g)
Q: If you add 21.1 mL of solution from a buret into a flask that already contained 38.7 mL of solution,…
A: Given that, 21.1 mL of solution from a buret is added into a flask that already contained 38.7 mL…
Q: Among CH₃OH, HOCH₂CH₂OH, CH₃CH₂OCH₂CH₃, which will have the highest vapor pressure?
A: Among CH₃OH, HOCH₂CH₂OH, CH₃CH₂OCH₂CH₃, which will have the highest vapor pressure
Q: In an ionic compound with the formula M1X, what is the charge on X
A: The ionic compound is M1X.
Q: Each of the two IR spectra are one of the following benzene derivatives: benzaldehyde, benzoic acid,…
A: IR spectroscopy is used to determine the functional groups present in the sample. Different…
Q: Answer number 11 to 20 pls.
A:
Step by step
Solved in 2 steps
- mass of unknown crude for acid and neutral is 0.03 grams mass of unknown recrystallized for acid and neutral is 0.03 grams. I need help in finding overall percentStock iron(II) solution (200Ug mL-1 Fe) ferrous ammonium sulfate hexahydrate mass= 0.1437g, transfer it to a 100 ml beaker. add 15 ml approx of water and 15m1 'approx of dilute sulphuric acid (2M H2SO.). then transfer FeII to 100 ml flask makeup to the mark with water. calculate the moles of ferrous ammonium sulfate hexahydrate solution in unit ug/mL.Read the Limit Test for salicylic acid in aspirin below then answer the question below. Remember: Aspirin = acetyl salicylic acid (ASA), and salicylic acid = SA Limit Test for salicylic acid: Extract powdered Aspirin tablets (i.e., active + excipient) containing 0.4g acetylsalicylic acid (i.e., active) with 4 mL of 95% ethanol. Add water to give a final volume of 100.0 mL and mix. Transfer 50.0 mL of the filtrate to a Nessler Cylinder and add 1.0 mL of acidified ferric ammonium sulfate solution. Mix and allow to stand. Prepare the standard solution used for comparison as follows: To another Nessler Cylinder add 3.0 mL of freshly prepared 0.01% (wt/vol) salicylic acid, 2.0 mL of ethanol, 1.0 mL of acidified ferric ammonium sulfate solution and sufficient water to give a total volume of 51.0 mL. Mix. A violet colour produced by the sample should not be more intense than that of the standard, used for comparison. Example of "Limit" calculations: Based on the above limit test, the…
- An impure sample of 0.1002 g benzoic acid underwent purification by recrystallization. A mass of 0.0542 g of white solid benzoic acid was obtained. Calculate the % purity of the initial sample. Show calculations and report the result with correct number of significant figures. Hi there please answer all parts clearly and concisely with legible hand writting, thank you!To prepare the solution you would place the solute in a 50.0 ml volumetric flask, and then fill to the mark with water while mixing. This would give a total solution volume of 50.0 ml. The 5.0 solution needs to be diluted to make 10.0 ml of a 2.0% solution. What volume of 5.0% solution should be used? Please answer fast i give you upvote.Sodium sulfate solution is mixed with a solution of barium chloride. When 8.413 kg of sodium sulfate with 3.672 kg of barium chloride, how many kg of the excess reagent is left over? Please provide an answer with 4 sig figs. Please answer fast i give you upvote.
- Data obtained: Chips # of extractions Chips' weight (g) Fat weight (g) Regular 3 20.043 6.745 3 20.187 6.438 3 20.198 7.451 Low fat 3 19.456 3.982 3 20.072 4.547 3 20.192 4.589 Mass percent is a method of expressing the concentration of a substance in a mixture or element in a compound. It is calculated as the mass of the component divided by the total mass of the mixture and then multiplied by 100 to get the percent. The formula is: mass % of component= (mass of component / total mass) x 100% 1) Reproduce the following table, and use the data to determine the mass % of fat in the chips for each trial. 2) Show one example calculation. Chips Trial % by mass of fat Regular 1 2 3 Lowfat 1 2 3Given the following data, what is the molarity? Include the relative error Error is 1.0 mg or 1.0e-4Determine the percent completion for both you distillation and your collegues whose data you obtained. (What percentage (by weight) of the octane/isooctane mixture was collected in the distillate vial?
- Mass of original mixture: 0.280g Mass of naphthalene recovered: 0.160 g Mass of 3-nitroaniline recovered: 0.015 g Mass of benzoic acid recovered: 0.135 g 1. a) calculate % by mass of naphthalene, 3-nitroaniline and benzoic acid in original sample 1. b) calculate total mass of three recovered components (g) 1. c) calculate total percent recovery (%)You have finished two trials of the sample analysis for the experiment and you noticed that the burette is almost empty (~5 mL remaining). Should you add more titrant before the next sample analysis or not? Why or why not? Select one: YES. It will not affect the calculations and not cause error NO. It will affect the calculations and cause error Neither A nor B Cannot be determinedMolarity: 0.148 M Na2S2O3 Data for Unknown Sample Trial 1 Trial 2 Mass of Sample 0.081 g 0.083 g Volume of Na2S2O3 ----------------- ------------------- Final Buret Reading 0.78 mL 0.84 mL Initial Buret Reading 0.07 mL 0.10 mL Net Volume of Na2S2O3 _____mL ______mL Calculation of Percentage NaOCl -------------- ------------- Moles of Na2S2O3 used _______mol _______mol Moles of NaOCl reacted _______mol _______mol Mass of NaOCl in sample _______g _______g Percentage by weight NaOCl (g NaOCl/g sample) X 100% _______% _______%