With the given data provided below, identify the percentage recovery and structural formula of recrystallized sample of acetanilide. a. Mass of test tube: 33.05g b. Mass of aniline + test tube: 10.22g c. Mass of crystal compound: 12.98g
Q: For the post-lab: Calculate the experimentally determined mass% oxalate for each trial. Determine…
A: Let's considerYou have total three 'trials'· Mass of sampleTrial-1 : mass of sample = 0.1198 g…
Q: Discuss the purity of Acetanilide before and after crystallization based on melting points. Discuss…
A: The chemical reaction involves the combination of two or more reactants in an appropriate solvent…
Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of S02 are…
A:
Q: You started with 84g of aniline and 28 ml of acetic anhydride. Give % yield of acetanilide. 47
A:
Q: Prepare 500 mL of 10% formalin from commercial formaldehyde
A: Given Volume of Stock Solution = V1 Concentration of Stock = C1 Volume of Working Solution = V2…
Q: calculate the mass of excess reagent remaining at the end of the reaction in which 90.0g of SO2 are…
A:
Q: Which of the following is NOT correctly related to the parts of paper chromatography set-up? a.…
A: Paper chromatography is a method for separating dissolved substances from one another. The mobile…
Q: calculate the mass of maleic anhydride that corresponds with the number calculated in number 3…
A: • The values provided in the question are:- i) Number of moles of maleic anhydride, n = 18 mmol…
Q: A student reacted 0.500 g of triphenylmethyl bromide and 20.0 mL of water in 10 mL of acetone. The…
A: Given that - Mass of triphenyl methyl bromide = 0.500 g Volume of water = 20.0 mL Volume of…
Q: Paraform precipitate is formed in formaldehyde solution when stored at a temperature: A) Below + 18…
A:
Q: You started with 84g of aniline and 28 ml of acetic anhydride. Give % yield of acetanilide.
A: When aniline reacts with acetic anhydride then acetanilide is formed. Ph-NH2 + Ac2O = PhNHCOCH3 +…
Q: Weight of Anhydride and Evaporating Dish A Weight of Water Lost Weight of Anhydride Experimental…
A: To calculate these values , we would use the given formulae . First we would calculate the mass of…
Q: Suppose we start with 3.0g of contaminated benzoic acid. After recrystallisation we end up with 2.3g…
A: Given Mass of contaminated benzoic acid = 3.0 g Mass of pure benzoic acid = 2.3g
Q: In preparation of dibenzalacetone. You obtained bg of product. Calculate percent yield. 25g Acetone…
A: Volume of benzaldehyde used = 169 mL Volume of acetone used = 129 mL Actual Mass of dibenzalacetone…
Q: Given that 0.089 moles of benzaldehyde and 0.089 moles of 3'-chlow used to prepare 12.59 g of the…
A: Given: Benzaldehyde is 0.089 moles. 3'-chloroacetophenone is 0.089 Chalcone has 12.59 g.
Q: In the molecular weight determination by the Dumas method, several grams of an organic liquid was…
A: The mass of the bulb filled with vapor was 36.127 g;The mass of the empty (evacuated) bulb was…
Q: Assume that student reacts 1.55 mL of 2-methylcyclohexanol (d=0.93 g/mL) with 0.50 mL of 85 %…
A: To express the efficiency of a reaction ,you can calculate the percent yield . % yield = actual…
Q: Explain what will happen to the (i) yield and (ii) purity, of aspirin if the following steps were…
A: Modification in Step Yield Explanation Opting to filter the recrystallized product using only…
Q: Assume that the mass of impure acetanilide is 1.732 g. and the mass of recrystallized acetanilide is…
A: Answer: 73.38 %
Q: A student mixes 42.7 mL of acetone (58.08 g/mol, 0.791 g/mL) with excess benzaldehyde and NaOH to…
A:
Q: How would the calculated recovery be affected if the collecting flask used in distillation was not…
A: Amount product recovery means amout of the pure product recovered.
Q: I am preparing for a chem test, and this is one of my example problems. I was curious if you could…
A: Here we have:Mass of mixture = 1.00 gSince,Molar mass of CuO =79.5 g/molMolar mass of Cu2O = 143…
Q: We separated a mixture of sodium carbonate and calcium chloride using Gravity Filtration.…
A: A question based on analytical separation that is to be accomplished.
Q: alculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are…
A:
Q: A 150-g dried leaves sample of Ficus religiosa was subjected to ethanol extraction for 48 h. An…
A: Percent yield is defined as the percentage ratio of the actual yield to the weight of the crude…
Q: In an EAS Reaction the compounds 5.0g of acetanilide, 0.2g potassium bromate, 5ml acetic acid, 0.9…
A: Acetanilidine = 5.0 g KBrO3 = 0.2 g CH3COOH = 5.0 mL HBr = 0.9 mL NaHSO3 = 5 mL
Q: A)) Identify the residual gases that occupied 150cm3
A: Regardless of the type of hydrocarbon, combustion with oxygen produces 3 products: carbon dioxide,…
Q: A. The Cannabis Gummies were illegally shipped into the country but were intercepted at NAIA upon…
A: As per the Bartley expert guidelines, I am allowed to answer first one question at a time. Please…
Q: suppose 490.82 mg of dibenzalacetone was used to recrystalize. at the end, the recovered crystals…
A: Percentage recovery is defined as the ratio of amount of substance actually collected to the amount…
Q: Consider the volume vs temperature graph below of an unknown 36.00 mL alcoholic moture: Distillation…
A: Volume of alcoholic mixture = 36 mL Volume of distillate collected = 18 mL Remaining volume in the…
Q: Percent yield of methyl 3-nitrobenzoate(show working..include compound name or abbreviation)?…
A: Theoretical yield is calculated on the basis of the stichometry of the chemical equation. The…
Q: 12. In IR analysis, solid samples are prepared in KBr pallet O O Thin film O Nujol Mull Organic…
A:
Q: 11. A 101.3-mg sample of an organic compound known to contain Cl is burned in pure O2 and the…
A:
Q: 10 grams of compound A is dissolved in 50ml water Methanol will be used to extract A form water…
A: Extraction is the process of separating a desired substance by transferring the substance from one…
Q: - Also, identify the best solvent for molecular weight determination. g. Note that the density for…
A: Polylactic acid is thermoplastic polyester and obtained by the condensation of Lactic acid…
Q: Mass of crude Acetanilide = 0.508 Mass of filter paper = 0.800g Filter paper + pure Acetanilide =…
A: From the given data, Mass of crude Acetanilide = 0.508 g Mass of filter paper = 0.800 g Mass of…
Q: (Submit your answers on a separate sheet if necessary.) 1. If some of your unknown sample failed to…
A: These Questions are related to the effect of the error on experimental data calculation.
Q: A sample is analyzed for chloride using the Volhard method. What is the percentage chloride as NaCl…
A: Given, Weight of sample: 303.0 mg AgNO3 used: 40.00 mL of 0.1234 M KSCN used: 12.20 mL of 0.0930 M…
Q: caffeine
A: The crude caffeine contains contaminates, usually other organo compounds that were part of the plant…
Q: What is the percent recovery of 3-nitroaniline from a 1.65 g mixture containing 33.3% benzoic acid,…
A:
Q: of the following may cause an increase in the calculated percent recovery of the recrystallized…
A:
Q: Molecular weight (g/mol) Mass (g) density Equivalents Amount required Volume Reagent (mL) (ø/mL)…
A: Hence, 0.0135L or 13.5mL ethanol is needed to prepare 0.33M solution.
Q: Two successive reactions, D→E and E→F, haveyields of 48% and 73%, respectively. What is the overall…
A: Percent Yield: It is defined as the ratio of actual yield of product to the theoretical yield of the…
Q: If this is the procedure that we used to adapt a new reaction, what is the mass, molecular weiht,…
A: Amount of 2-chloro-5-nitrophenol added = 2.75 g Molar mass of 2-chloro-5-nitrophenol…
Q: Match Column A with Column B. Mobile phase is more polar than the stationary phase A. Reverse Phase…
A: Explanation is on the image. 1)-‐---A 2)-----A 3)-----B 4)-----B
Q: In the event of an acid leak, what is the best technique to ensure that the acid is safe to handle?…
A: Acids are the substances that furnish proton in aqueous solution. These are corrosive in nature.
With the given data provided below, identify the percentage recovery and structural formula of recrystallized sample of acetanilide.
a. Mass of test tube: 33.05g
b. Mass of aniline + test tube: 10.22g
c. Mass of crystal compound: 12.98g
Step by step
Solved in 2 steps
- Eugenol, the main component of clove oil, can be prepared by heating 2-allyl guaiacol (in the absence of oxygen) to temperatures >205 °C. In practice, however, it is most cost-effective to extract eugenol from cloves, its natural source. Given a weight percentage of eugenol in cloves at 15.0%, calculate the minimum mass of cloves one needs to obtain 8.00 g of eugenol as a product. Report your answer (as a mass in grams, without units) with three significant digits.At -28 C sodium bromide and water from a eutectic mixture which contains 48 % NaBr by weight. What is the maximum weight of pure NaBr that can be recovered from a mixture containing 80 g NaBr and 20 g water? a. 33.3 g b. 28.6 g c. 66.6 g d. 40 gA student was given an unknown hydrate, which could be one of threepossibilities: magnesium sulfate heptahydrate, sodium dichromate tetrahydrate orbarium chloride dihydrate. Using the following data identify the unknown.Wt. of crucible/lid empty 39.46 gWt. of crucible/lid/hydrate sample 46.84 gWt. of crucible/lid/sample after heating 45.77 g
- We separated a mixture of sodium carbonate and calcium chloride using Gravity Filtration. Additionally, did vacuum filtration for crystallized Vannilin. However we were not able to recover 100% of the original sample the question is: what do you think are the factors that contribute to low percentage recovery?If this is the procedure that we used to adapt a new reaction, what is the mass, molecular weiht, volume, mole equiv, moles of the all the reagents and products of the new reaction? Below is the procedure and attached is the new reaction 5-Amino-2-chlorophenol To a 250 mL Erlenmeyer flask containing a Teflon coated magnetic stirring bar was added 85% sodium hydrosulfite (14.0 g), water (80 mL), and 20% (mass/vol) sodium hydroxide solution (16 mL). The mixture was magnetically stirred until a clear solution was obtained, then solid 2-chloro-5-nitrophenol (2.75 g) is added in one portion. The mixture was stirred at room temperature for 20 minutes then heated to a gentle boil for about two minutes during which time the yellow color of the solution disappeared, indicating complete reduction of the nitro function. The reaction mixture was cooled to room temperature and then placed in an ice-water bath for about 10 minutes. The crude product was collected by vacuum filtration, washed with a…What is the weight percent of toluene in a mixture of toluene and n-heaxne that has a spevific gravity of 0.832
- Mass of crude Acetanilide = 0.508 Mass of filter paper = 0.800g Filter paper + pure Acetanilide = 1.153g Mass of pure Acetanilide = ? % recovery = ? Mpt of recrystallized Acetanilide =112 C – 114 C Mpt of crude Acetanilide = 97 C – 110 CGiven data for Preparation of Methyl BenzoateMass of benzoic acid used: 5.040 gramsVolume of methanol used: 12.0 mLMass of Methyl Benzoate Obtained: 4.810 grams please help find the %yield and limiting regent given the data for the expirementMass 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 (%)
- Determine the percentage Fe in a sample of limonite from the following data:Sample : 0.5000g ; KMnO4 used = 50.00 ml ; 1.000ml of KMnO4 is equivalent 0.005317 g Fe,FeSO4 used = 6.00 ml; 1.000ml FeSO4 is equivalent 0.009200 g FeO ( ans 44.59 %)Calculate the values of vrms, vmp, and vmean for Cl2 (70.90 g mol-1) at 25 °CA core sample is saturated with an oil (?o = 35oAPI), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (?w = 1 g/cm3 ), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm3 water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.