Q: 24. approach 100% purity and are used to standardize solutions at a very high degree of accuracy. a.…
A: Q.24 Ans: (a) USP grade The USP or US Pharmacopeia is the organization that sets the bar for potency…
Q: Which one answer does NOT represent a characteristic of a good recrystalli solvent? 1) Should not…
A: Recrystallization is the process of purification of an impure substance by the use of a suitable…
Q: Determine the possible ion/cation present Draw the flowchart of it CATION CONFIRMATORY TEST…
A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…
Q: Classify attached solvent as protic or aprotic ?
A: Protic are the defined as the solvents in which the protons (hydrogen) are attached to the…
Q: (11) Find Unknoong P Note: PeX Bothaiva Posidive Test with ammonical A gNDs Solution. S04 Hg S04
A: HgSO4/H2SO4 CH ≡CH + H2O à CH3CHO ethanal Ethyne CH ≡CH + B2H6 (hydrogenation ) à CH2=CH2…
Q: The compound eluted last and retained more in Normal phase Chromatography are: A. Polar compounds B.…
A: In normal phase chromatography, the stationary phase is Polar
Q: Nitrogen Content Assay Method I is also known as? Distillation Micrometric Method Macromethod…
A: Nitrogen Content Assay Method I is also known as?
Q: Is recrystallization a good method for purifying any product?
A:
Q: oles of I-(x 10) noles of Pb2+ (x 10-5) noles of Pb2+ (X 10-5)
A: 1) 5 mL of 0.012 M Pb(NO3)2 gives 0.012 *5mmol= 0.06 mmol of Pb2+.
Q: Note the color of the cupric sulfate pentahydrate before and after heating. Question: Observations…
A:
Q: Tou were tasked to check if the liquid sample you have is a substance or a mixture Which among these…
A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want…
Q: This is a not graded pre test, I just need the blanks in the BCA table based off the balanced…
A: The balanced chemical equation for combustion of propane C3H8(g) + 5O2(g) --------> 3CO2(g) +…
Q: Methylated samples hydrolysate samples can be analyzed using a gas chromatography. True False
A: Chromatography is a technique which is used for seperate the reaction mixture
Q: give a hegative Tol test? B A C H. H. H. H.
A: The question is based on the concept of qualitative analysis. we have to identify the compounds…
Q: Make a schematic diagram of the recrystallization procedure.
A:
Q: Some de-icing compositions include dyes or colored compounds called indicators. Why?
A: The process of removing snow or ice from the surfaces is called de-icing. This can be done through…
Q: REAGENT AMOUNTS In this section, you must record the actual amounts and volumes of reagens use in…
A:
Q: What will be needed for resting a separatory funnel when it is charged (meaning in use)? O beaker…
A: Introduction: We have to tell what will be required for resting a separating funnel.
Q: ka = 5.70 x 10^-10 d0.0120 M in NaOH and 0.630 M in NH3. pH = | 12.25 An error has been detected in…
A: Concentration of NaOH = 0.0120 M Concentration of [OH- ] = 0.0120 M Concentration of NH3 = 0.630…
Q: In 6.75g of distillate >130C. After performing all necessary GC calculations, it is determined that…
A:
Q: Dissolution is considered one of the mosto important quality control test performed on…
A: Qualitative analysis is a branch of chemistry that deals with the identification of elements present…
Q: Is the separation 100% complete after evaporation process? Explain.
A: Evaporation is a process by which a compound changes its phase from liquid state to gaseous state…
Q: An oil sample had its iodine number determined using the pyridinium tribromide method. The sample…
A: To calculate iodine number, using formula: I.N=BmL-SmL*1.269 g/mLW(g) W (g) = weight of oil in gram…
Q: Measure 0.400 g of KMNO. using a 50-mL beaker as the sample pan. Make sure to press the tare button…
A: Concentration of a solution is the indicator of amount of solute present per fixed amount of solvent…
Q: Analysis of Percent Organic Matter of * a soil sample was conducted and the data are shown below.…
A:
Q: Find the ksp of PbCl2 5.0 g od pbcl2 100ml of h2o
A: GIVEN DATA: given mass of PbCl2: 5gm Molar mass of PbCl2 is 278.1gmol-1 water = 100ml
Q: How does the analyzed vinegar sample conform with the FDA standards?
A: According to the Food and Drug Administration(FDA) standards, the minimum amount of acidity that a…
Q: Why must be the primary standard be dried before use
A: A primary standard is a reference solution used to determine the unknown concentration of another…
Q: how much diluent is needed to make a 1:2 dilution 50 ul sample
A: Diluent is a substance that is used to dilute the solution. Given information: 50 uL sample…
Q: When you use a balance to weigh a reagent, you should weigh onto: -a filter paper. -the top of the…
A: Practical of any subject can help us to gain better knowledge of that particular subject specially…
Q: What is the purpose of chromic acid test? What is the evidence of positive result?
A:
Q: An oil sample had its iodine number determined using the pyridinium tribromide method. The sample…
A: To calculate iodine number(I.N), using formula: I.N=(BmL-SmL )1.269g/mLW(g) BmL is the blank volume…
Q: 1. C3HO2 a Proton-decoupled CDCI3 (solvent) 200 150 100 50
A:
Q: Calculate the theoretical yields of: Isobornyl acetate IsoborneolCamphor
A: The term theoretical yield of a given substance can be defined as the amount which is predicted by…
Q: 24. In paper chromatography, a rectangular piece of filter paper serves as the 24. A. mobile phase…
A: Paper chromatography was discovered by Synge and Martin in the year 1943. In paper chromatography,…
Q: Classify these solvents as either protic or aprotic solvents.
A: A protic solvent is a compound containing at least one hydrogen atom bonded to anelectronegative…
Q: Column A Cesponse Unretained peaks Compound Y Compound X Time (min) 8 min. Compound Y Column B…
A: We can decide the effectiveness of resolution in column chromatography based on the nature of the…
Q: Pinacl-Pinacole lab What visual criterion is to be used to assess whether the crude reaction product…
A: Pinacol pinacol rearrangement is a type of rearrangement which occurs in geminal diols and…
Q: An oil sample had its iodine number determined using the pyridinium tribromide method. The sample…
A:
Q: What is the [acetate]/[acetic acid] ratio with a pH of 4.39? Provide an answer with 2 significant…
A:
Q: ml Diluted Undiluted Diluted to mL Water Absorbance Unknown Conc. (M) Conc. (M) 0.5 4.5 0.4IS 1.25…
A: Given are the volumes of unknown sample which are diluted with given varying volume of water. The…
Q: NPCI2) 2(NSCI) reflux Ru(PMeg)4ME2 Me2GeArH reflux Na, toluene
A: product of the following reactions given below;
Q: Pertinent General Reactions Lucas test: Ferric chloride test:
A: The Lucas test in alcohols is a test to differentiate between primary, secondary, and tertiary…
Q: Compound A, B, C, D Chromic acid test (-) |(+) blue-green solution А, В С, D. Lucas test 2,4-DNPH…
A:
Q: plete balance lne following han ICtion in SOluli CIO: (aq) → CI-(aq) O3- D2+ 3+ 14+ 1 2 3 6. 7 8 D4…
A: The half-reaction is as follows: ClO3-(aq)→Cl-(aq)
Q: B D. 1 1.16E-04 0.005 2.32E-04 0.074 3 3.47E-04 0.145 4 4.63E-04 0.219 5.79E-04 0.301 6. Salicylic…
A: The absorbance of student's solution is 0.250. The equation of straight line is,…
Q: Explain which hydrolyzed component will be positive in the Br2 water test. (Refer to image)
A: Alkenes can be defined as the organic compounds that contain carbon and hydrogen atoms in a…
Q: a. Pb2* ion Probable Observation Treatment After heating After adding K2CrO4 b. Ag* ion Treatment…
A:
Q: To which sample solution the spike will be add? the distillate>130C the mass standard the…
A: A spike is a known quantity of analyte added to a sample of test solution whether to redponse to…
Q: observation and inference hexane is subjected into lucas test and Metallic sodium test
A: Sodium Metal Test: Drop a piece of sodium metal in the liquid to be tested (before adding sodium…
Step by step
Solved in 2 steps