GMontenaro M5 Lab 1 Dehydration of a Hydrate 2022

4. Geologist also use binary phase diagram to show compositional change with temperature. These diagrams are described on pages 249-256 of MMS, and in your chemistry books. For the initial composition shown by an X, determine the original composition of the olivine (core) and the final composition of the solid - the rim. Use Fo/Fa percentages. Olivine Binary Phase Diagram Temperature "C 1990 1800 1600 1400 1200- 0 М035904 Fo Olivine 20 X Liquid 40 60 Weight % Fa 41205 100 Fe Fa Substances with >1 component melt over a range of temperatures core rim 3

Calculate the - total number of moles of oxalate ions (sources are oxalic acid solutions and potassium oxalate monohydrate is 0.0186 moles) - total number of moles of Fe3+ ions (source is ferrous ammonium sulfate hexahydrate, FeSO4(NH4)2SO4.6H2O)

I need answer within 20 minutes please please with my best wishes Hussein

please answer  7 ，thanks！！

is water a good solvent for recrystallization for acetanilide based on the image?

18. Jet is an undergraduate chemistry student, he’s out in the laboratory trying to determine the volatile organic compounds as well as overall protein content of the leaf and stem of a malunggay (Moringa oleifera). He subjected the leaf and stem in a separate digestion reaction (treatment of sulfuric acid), afterwards he subjected the products to high temperature induction to get a dry ash like substance. Which type/s of chemical analysis did Jet employ to reach his objective?I. Qualitative AnalysisII. Quantitative Analysis III. Instrumental Chemical AnalysisIV. Wet Chemical AnalysisA. II & IV onlyB. I & IV onlyC. I, II & IV onlyD. I, II, III, IV

Organic chemistry

kindly help me with this problem thank you  Subject: PHYSICAL CHEMISTRY INSTRUCTIONS: solve as neatly as possible and show complete solution. Round your final answer to four decimal places and box  highlight all final answers. all values must include proper units with proper conversion if needed in your solution. kindly follow this format Given Required Solution thank you so much!

A sample of rainwater was collected from four separate locations across theMetroplex. Each sample was measured once by two separate methods for the presence ofsulfate. Determine whether the two methods are equivalent with respect to giving thesame answer for [SO42-].

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Please answer letters a-k.

An open tubular column with a diameter of 215 um and a stationary phase thickness on the inner wall of 0.51 um passes unretained solute through in 79 s. A particular solute has a retetion time of 467 s. What is the distribution constant for this solute? Kp = What fraction of time does this solute spend in the stationary phase? ts !! ttotal

Find miller indices values (hkl)

a. Colloidal particles typically have a negative surface charge that attracts oppositely charged positive ions in the surrounding bulk solution. These so-called _______-ions are held at the particle surface through electrostatic and van der Waals forces of attraction strongly enough to overcome thermal agitation. b. Turbine and propeller type mechanical mixers used for rapid mixing of reagent chemicals have either ------------- flow impellers with flat or curved blades located parallel to the axis of the drive shaft, or --------------------- flow impellers with blades making an angle of less than 90o with the drive shaf

Using the image attached please write the procedure in your own words Please write it in a paragraph if possible please answer fast it's important

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You are analyzing the effluent from a lotion plant for parabens using HPLC. You have a working standard solution with a concentration of 59.4 ppm which returned a Peak Height of 10,164 and Peak Area of 5,315. You take 44.4 L of the water sample and concentrate it to 0.3 L and analyze this solution. The Peak Height is 9,119 and the Peak Area is 6,320. What is the concentration of parabens in the effluent of the plant in mg/L to two decimal places.

1.     Given the molal-boiling point elevation constant Kb of water, calculate the theoretical boiling point elevation of sugar, NaCl, and KCl. Also, indicate the level of accuracy by calculating the % error.

02:21 4G File Details 4CH003/UM1: Fundamentals of... Place a thermometer into the mixture and cool the flask in a water bath until the temperature is below 200C. Remove the flask from the water bath and carefully add cyclohexanol (10ml, 9.6g) to the acid mixture. Cyclohexanol is only slightly soluble in water so you should observe two immiscible layers at this point. Dissolve sodium dichromate dihydrate (10.5g) in water (5ml) in a 25ml conical flask and, using a dropping pipette, add this solution carefully drop by drop to the cyclohexanol/sulphuric acid mixture over about 30-40minutes. Swirl the flask vigorously during the addition process and maintain the temperature of the mixture in the round bottomed flask between 25-35°C during the addition by immersion of the flask in the cold water bath. If the dichromate solution is not added slowly, a rapid rise in temperature will occur and the reaction will become violent. 3 When all the dichromate solution has been carefully added rinse…

Mass of Empty Beaker is 141.2g, Beaker + Water is 388.3g,  mass of water is 247.1g, volume of water is 0.2471mL, calculate volume H2=Volume displaced water

Two salts A and B are dissolved in water. At the temperature of the experiment, the solubility of A is 1 kg A/kg pure water and that of B is 0.4 kg /kg water. It will be assumed that the solubilities of the two salts are not affected by the presence of each other. If originally 20 kg of A and 20 kg B are dissolved in 100 kg water, and some of the water is evaporated from solution, calculate the: (1) amount evaporated (2) weight of mother liquor (3) composition of mother liquor (4) weight of each crystal formed for the following cases: a) 50% of the water is evaporated b) Enough water is evaporated to reduce the total weight of the solution to 50% of the original value c) Enough water is evaporated to leave the solution saturated with A, without crystallizing any A d) Enough water is evaporated so that the remaining solution is 50% of the original value.

Assume the data below was collected for two different sample solutions using the same experimental procedure you carried out. Based on the two lines shown below, which solution (orange data points or blue data points) corresponds to the sample with the higher molar absorptivity? 0.9 y4.771 - 0.0728 0.7 0.6 04 0.3 02 y1414 - 0.0546 R0.99642 0.1 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 02 0.1 [Concentration, M] orange data points (lower line) O blue data points (upper line) Absorbance

see the graph and determine/give the ff: a. 1 eutectic point (temp and composition) b. 1 peritectic point (temp and composition) c. melting point of Mg2SiO4

Q3/ Caleulate the solubility parameter for amorphous polylactie acid, which has a density of 1.21g/cm3. Also, identify the best solvent for molecular weight determination. Explain your reasoning. Note that the density for acetone, ethyl acetate, and tetrahydrofuran are 0.791,0.902, and 0.889 g/cm3, repsectivily. Note H-1 g/mole, C-12 g/mole, N-14 g/mole, and 0-16 g/mole. CH3 -H polylactic acid (C3H402)n но Aceton:C3H60 ethyl acetate :C4H8O2 tetrahydrofuran :C4H80 人人 Group Molar Attraction Constant Fin (MPa) cm' mol -CH, 420 --CH, - 280 >CH- 140 >C< 0. P-phenylene 1377 -0- 256 -CO- 685 -COO 512

In a recrystallization of a mixture of adipic acid and salicylic acid, the melting point of crop G was experimentally determined as 130.9 to 154.3 oC. The composition of crop G can be said to be: Group of answer choices The composition of crop G cannot be determined from the given melting pint data. 90 A: 10 B 20 A: 80 B 80 A; 20 B

Two mixtures of methanol (CH3OH) and water (H2O) are contained in separate flasks. In the first mixture, methanol has a molar fraction of 40%, and in the second a molar fraction of 70%. Flask 1 and Flask 2 are combined in a mixer in a ratio of 2:1 (molar). a.Draw a diagram of the process and label the streams and components. b.ldentify all the unknown masses and mass fractions of the system. c.Calculate the composition (in mass) of Flask 1 and Flask 2. d.Calculate the composition (in mass) of the product out of the mixer. Please give an explanation for the step you take

What is the narrow graduated piece of glass equipment called? Why do you use an Erlenmeyer flask instead of a beaker to collect the solution? Why do you need a white piece of paper? What is the part called that you adjust to change the flow of solution out? What is the name of the curved surface of a liquid in a tube called? Video: https://www.youtube.com/watch?v=sFpFCPTDv2w