19) A sample of an organic solvent has a mass of 2.59 kg and fills a volume of 1.75 L. Use the table below to identify the solvent. Substance Density, g/cm3 diethyl ether 0.714 isopropyl alcohol 0.785 toluene 0.867 chloroform 1.483 A) diethyl ether B) isopropyl alcohol C) toluene D) chloroform E) none of the above
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- The alcohol content of hard liquor is normally given in terms of the “proof,” which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 75-proof gin. The density of ethanol is 0.798 g/mL. Round off to 4 sig. figures for all calculations made prior to final answer and the final answer should be in 3 sig. figuresProduce Water mass “X” is known to be a mixture of water masses “1”, “2”, and “3”. Using the data plotted below, calculate the composition of “X” (i.e. determine the fraction from each of the 3 water masses that makes up water mass X). Watermass#1– SF6 =25 S=33.5 Watermass#2– SF6 =75 S=32 Watermass#3– SF6 =50 S=36.5 Water mass X – SF6 =60 S= 34A mixture of methanol and water contains 60.0% water by mass. Assuming volume additivity: If the actual specific gravity of the mixture is 0.9345: How many liters is required to provide 150 mol of methanol?
- The odour was orang. Made of acetic acid and 1-octanol. Mass of 1-octanol= 6.51 g Mass of acetic acids = 6.00 g Please answer in detailA 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.Can paper chromatographt be used to separate and identify very volatile substances? Explain.
- Concentration of AR Stock Solution (ppmppm) 21.22 Unrounded Rounded Concentration of AR Stock Solution (μMμM) 42.7461 42.7What is the molarity of a concentrated solution of sulfuric acid with a specific gravity of 1.84 and 95.0% by weight sulfuric acid? specific gravity = density of substance at certain temp/density of water at 4 degrees C the density of water is 0.999973 g/mL at 4 degrees celsius. Describe how to prepare 3.0 L of 0.100M. I will pipet ______ and add this to 200mL water. The solution will be stirred and diluted to 3L with water.Althea extracted 2g of pure dry salt frame 6g of rock salt. The mass of the salt obtained is less than the mass of rock salt because the rock was removed by ______?a dissolvingb. distillationc. evaporationd. decantation5. A mixture of different colored inks can be separate using ______?a. chromatographyb. distillationc. evaporationd. distillation6. what is one property of a suspension that is different from that of a solution or colloid?a. the particles of a suspension will settle down upon long standing.b. the particles of a suspension reflect light.c. A suspension is always clear.d. A suspension is colorless.
- A solution is formed by dissolving 2.000 kg of sugar (sucrose, density = 1587 kg·m−3) in 1.000 kg of water (density = 1000 kg·m−3). Assume that the volume of the solution formed is the sum of the sugar volume and the water volume. a) What is the final volume of the solution? b) What is the density of the solution?Stock 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.Given the following data forMass of test tube, beaker and cyclohexane = 100.17 gMass of test tube and beaker = 84.07 gFreezing point of cyclohexane = 6.59 oCMass of weighing paper + naphthalene =1.080 gMass of weighing paper = 0.928 gFreezing point solution = 5.11oCKf = 20.8oC/mDetermine the followinga. mass of cyclohexane in g (2 decimal places); _____b. mass of naphthalene in g (4 decimal places); _____c. freezing point depression (2 decimal places); _____d. molality of solution (3 significant figures); _____e. moles of naphthalene (3 significant figures); _____f. molar mass of naphthalene, experimentally (3 significant figures); _____g. % error if theoretical molar mass of naphthalene is 128.17 g/ mole, USE ABSOLUTE VALUE (3 significant figure); ____