Q: C5H12O 3.0 2.5 2.0 H 1.5 SH 3H 0.5 PPM 17
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Q: Is the separation of the mixture shown here a physical orchemical process?
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Q: How many milligrams are in 0.250 mmole CHC16H17N2HNS2 (A.wt: C=12, H=1, N=14, S-32)
A: The molar mass of the given compound is 12+1+(16x12)+(17x1)+(14x2)+1+14+(2x32) = 329 g / mol
Q: refractometer
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Q: liquid
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Q: Mass Spectrum 120 100 80 24 41 56 57 10 15 20 25 30 35 40 45 50 55 60 65 70 m/z Relative Intensity
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Q: The widths at half-height, wi/2, of the peaks for compounds A and B are 0.123 min and 0.299 min,…
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Q: technique called “GCMS” is often used instead of simple GC analysis. This technique entails passing…
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Q: What is the corrected weight (g) of KHP (Molar mass = 204.22 g/mol) with an actual weight of 0.8026…
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Q: negative ion * a. 03- b. 02- С. 01- d. Ca3- Саз- е. Ca2- f. Cal-
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Q: Following is the mass spectrum of 1-bromobutane. Q.) Propose structural formulas for the cations of…
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Q: _is a technique which is used to separate a single chemical 3. compound from a mixture dissolved in…
A: Chromatography can be defined as the technique used for separating mixtures with the help of a…
Q: 14. After a thin layer chromatography experiment, spots of J, Kand Lappeared 10.1, 7.0 and 2.7 cm,…
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Q: A student accidentally started the chromatographic run without saturating the beaker with the…
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Q: 68. This process is an example of O Liquid Chromatography O Atomic Absorption Spectrophotomer O Thin…
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Q: STANDARDIZE THE Na,$;O3.5H;O WITH KIO,. Weight of KIO, = 0.5325 g V of KIO, = 250 mL N KIO, V KIO,…
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Q: Which one is the most common method used for the purification of liquid mixtures? Filtration…
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Q: What is the %composition of the Vitamin A peak in the sample?
A: To determine the % composition of the Vitamin A peak in the sample.
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Q: An example of planar chromatography is:
A: Dear student I have given answer to your question in the image format.
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Q: How many milliliters of sulfuric acid labeled 96% w/w, (sp.gr. 1.80) will be needed to make 12 fl oz…
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Q: ns) You use paper chromatography to separate the following two molecules. The stationary phase is…
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Q: [Glucose), mg / mL | Absorbance 0.132 5.000 10.00 20.00 30.00 0.290 0.498 0.642 40.00 0.750 a. Using…
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Q: 3. List possible sources of errors from each type of polarimeter. Automatic polarimetry: Manual…
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Q: What volume (in mL) of 15.921 ppt K+ (39.0983), with a density of 1.01 is needed to provide 8.31…
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Q: Determine if the following are systematic (instrumental, personal, method) or random errors. A. A…
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Q: 1. a) calculate % by mass of naphthalene, 3-nitroaniline and benzoic acid in original sample 1. b)…
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Q: Barium sulfate from a 1.300-g sample was contaminated with 9.4 mg of Fe2(SO4)3 and weighed a total…
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- A 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 gos the enrgy cost to break IMFs for acetone to mix with water likely larger or smaller?Describe how to weigh hygroscopic solids.
- I asked this question earlier but I think I forgot to include a conversion wht we know : mm of citrix acid = 192.14g/moldensity of citrix acid =166g/cm3 1 lime = 2tbsp of juice = 6 tsp 1tsp = 4.929x10-3L Q: assume citrix acid makes up 7.96% by volume of the lime juice . How many moles of citrix acid are in the recipe ( calls for 1 lime juice)V26What is special about the following terms: (i) Kraft Temperature (ii) Sorption
- A mixture of ethanol (ethyl alcohol) and water contains 40.0% water by mass.(a) Assuming volume additivity of the components, estimate the specific gravity of themixture at 20°C. What volume (in liters) of this mixture is required to provide 150 mol ofethanol?(b) Repeat Part (a) with the additional information that the specific gravity of the mixture at20°C is 0.89045 (making it unnecessary to assume volume additivity). What percentage errorresults from the volume-additivity assumption?27)Viscosity inscresses with increasing pressure true or falseBenzoin Tincture 18 mL Peru Balsam 10 g Cold Cream 70 g Sig cold sore ointment If benzoin tincture has a specific gravity of 0.88, calculate its percentage strength (w/w) in the mixture.
- In measuring the surface tension of a liquid (drop weight method), 20 drops of the liquid (r=0.2cm) falling apart from the tip whose diameter is 0.4cm were found to weigh 0.95 gram. What is he surface tension of the liquid? Show complete solution, and round the final answer up to 4 decimal places.If you mixed a solution at ARCC that was 17.5 % mass/mass of the sugar sodium and then transferred 2.00 mL weighing 3.21 g into a graduated cylinder and diluted to 10.00 mL, what mass of sodium was transferred to your new solution?Pls help ASAP. Pls pls pls make sure to inlcude SI units.