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Explain the difference between constant rate filtration and constant pressure difference filtration using mathematics and examples. When might either of these procedures be used in conjunction with filtration?

Shop Origami Owl O Inbox Outlook W... Sugarpill Cosmet.. 3 of Constants I Periodic Part A Li2 CO3(s)- Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣφ ? Submit Request Answer Part B CDCO3 (s) Express your answer as a chemical equation. Identify all of the phases in your answer. ? AEp -ΑΣΦ P Pearson MacBook Air t

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(This question and the next 2 questions are breakdowns of the same question) A student John wanted to measure the molar mass of an unknown material (UM) via the boiling point change of a solvent. He chose a solvent, ethanol, that can dissolve the material and sugar. He wanted to use sugar (MW = 342.3 g/mol) as a reference sample to get an ebullioscopic constant for his system to reduce the effect of other measuring errors such as pressure, measuring errors, and impurity of the samples. He made 10 solutions each contain 100 g of ethanol and various amont of solute as list in the table. He fits the two sets of data and obtain the molar weight of the unknown materials.   For this question answer the fitted boiling point of pure ethanol: ____ K. 4 sig. fig. Thre rest ? marks in the tale will be answered in the next two questions. Copy the data into Excel and use trendline to fit or calculate the average values for this and the next 2 questions.   Sample # Sugar (g) B.P. (K) Sample # UM…

vo/index.html?deploymentld=55750828934189288909969212&elSBN=9781305657571&snapshotld%3D2199898&id31... O Tp * NDTAP Q Search this Use the References to access important values if needed for this question. Trisilane (SiąHg) is a liquid with a density of 0.739 g cm³. It reacts with oxygen to give silicon dioxide (SiO2) and water. Calculate the mass of silicon dioxide that would form if 21.3 cm³ of trisilane reacted completely with excess oxygen. g silicon dioxide * Submit Answer 5 question attempts remaining

6 Methods that employ separation of the product chemically through precipitation, with purification, drying and weighing of the resultant product: A.    Spectrophotometric analysisB.    Volumetric analysisC.    Gravimetric analysisD.    Gasometric analysis7 Phase changes involving fusion, except:a.    Solid to liquidb.    Liquid to solidc.    Gas to liquidd.    Gas to solid

Window Help of Liquids Solids.pdf 10 Date Section Name Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) 1. The density of ice at 0°C is 0.9168 g mL, and that of liquid water at 0°C is 0.9999 g mL-. (1) What are the volumes of 1.000 g of ice and of 1.000 g of water at 0°C? SEP étv 21 DII DD F10 F9 F7 F8 F5 F6 F3 F4 0/ &

short, 1-minute survey. DISMISS 5. In the Dumas method for determining the molar mass of an unknown volatile liquid, a sample of a volatile liquid that boils below 100°C is vaporized in a boiling water bath and the mass of the vapor required to fill the flask is determined. The following data was collected: 4oFlask Volume 100.0 + 100.0 + 79.6 mL = 279.6 mL Mass of Flask + Cap Mass of Flask + Condensed Liquid Mass of Condensed Liquid Temperature of Water Bath (°C) Barometric Pressure (atm) 143.85 g 144.95 g 1.10 g 84.1 °C 0.985 atm a. What is the molar mass of the unknown? b. What will its temperature be when the pressure is 1.20 atm and the volume is 250.0 mL?

Potential Temperature (°C) 20 15 10 0 33.5 1.004 1.025 34.0 1.0245 1.0255 A 1.0275 34.5 1.026 1.0265 1.027 1.028 35.0 Salinity (PPT) B 35.5 1.0285 1.029 36.0 36.5 Record your readings for Water Mass A. Temperature Salinity Density Save Values value value value |||||

You are given three unknown samples stored in screw-cappedcontainers and was told to analyse them. You noted that Container A iscloudy and have some particles that are staying near the bottom of thecontainer. Container B is translucent while Container C is transparent. If thecontents of Container A can be separated by simple decantation,what isthe particle size that BEST describes its composition?i. <1 nmii. 1 nmiii. 1 nm-100 nmiv. >1000 nm

How do you convert 0.485L into mm using unit fractions?

Hint: You won't be able to tell exactly when the substance melts. You don't need to have exact measurements, just try to get an approximate value. Row Name melting temp °C variable 1 CuCI 2 Sucrose KI ... 4. lodine ... ...

Phase change properties of pure substances Cu C6H12 C (C6H5CH₂)₂0 (CH3CH₂)20 CH3CH₂OH (CH₂OH)2 NH₂COH Au C C6H14 H₂ copper cyclohexane diamond dibenzyl ether diethyl ether ethanol ethylene glycol formamide gold graphite hexane hydrogen 1084.62 6.7 4440 1.8 -116.22 -114.14 -13.0 2.57 1064.18 4489 -95.27 -259.16 2560 80.7 298 34.4 78.24 197.5 217 2836 3825 68.72 -252.879 0.385 1.841 0.51 2.369 2.438 2.394 2.389 0.129 0.709 2.27 14.304 13.26 2.68 -- 7.19 4.931 9.96 8.44 12.55 117.4 13.08 0.12 29.97 45.6 26.52 38.56 50.5 60.2 324 28.85 0.9 280.3 193.7 242 446 -- 234.4 -240.212 40.2 35.9 61.7 80 29.9 12.69

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Flow Rates 1. A pool is filled with chlorinated water at a rate of 45.6kg/min. The mass fraction of water is 0.914 and chlorine is 0.086. What is the component flow rate (mass flow rate) of chlorine?

16 Report Sheet Basic Laboratory Techniques 9. (a) Using the defined freezing and boiling points of water, make a plot of degrees Fahrenheit ... degrees Celsius on the graph paper provided. (b) Determine the Celsius equivalent of 40 °F_using your graph. The relationship between these temperature scales is linear (that is, it is of the form y = mx+b). Consult Appendix C regarding tio relationships and determine the equation that relates degrees Fahrenheit to degrees Celsius %3D (c) Compute the Celsius equivalent of 40 °F using this relationship. otoo niwallo od tuo m mes be od orb o ela

The student collected the following data he prepared solutions ranging from 0.000 to 0.500 ppm and measured the instrumental reading corresponding to each of the solutions prepared: Yi 0.000 0.00 0.100 12.36 0.200 24.83 0.300 35.91 0.400 48.79 0.500 60.42 Use the method of least squares to calculate the equation of the best straight line going through these points ii) Calculate the amount of unknown in your sample if the unknown reading is 40.35 ii) If blank standard deviation was 0.014. Calculate: 1. LOD,

Why is it better to use 10.0mL or greater of a liquid in measuring its density?

To prepare 5 ml of an eyedrop solution to 10 cps by mixing glycine and water,,................ml of glycerin is needed.(pure glycerin viscosity 500 cps, water viscosity 1cps).

6. A volatilization gravimetry experiment was conducted on an unknown organic liquid (presumed to only contain carbon, hydrogen, and oxygen). The liquid was massed (data in the first column below) and then combusted in an excess of oxygen. The exhaust gas was passed through a trap containing drierite and then through a trap containing ascarite. The starting and ending masses of the drierite and ascarite were used to obtain the data in the second two columns below. Mass Unknown 12.4370 12.5590 12.2230 Mass CO2 17.0822 17.2497 16.7882 Mass H₂O 13.9849 14.1221 13.7443 A.) Calculate the mass percent of carbon, hydrogen, and oxygen in the unknown liquid. There are no outliers, so you can average the data before processing, if you wish. B.) Calculate the empirical formula of the unknown compound.

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Station 2: Density column In the graduated cylinder, you have molasses, water (blue), corn oil, and ethanol (red). They have the following densities: Substance Molasses Water Corn Oil Ethanol Density 1.45 g/mL 1.0 g/mL 0.92 g/mL 0.79 g/mL Polarity Polar Polar Nonpolar Polar Viscosity High Low Low Low 1. Explain why the column is arranged in the order it is according to density.

Value Number of sig figs 301.50 0.0500 2650 7.560 x 1023

Filtration of samples A, B, and C show no residue left. After letting them dry in different beakers, SAmple A remains no residues. Sample B shows crystal leftovers, and sample C show brown film on the beaker walls. This means that: a. Two or more samples are heterogenous b. Two or more samples are homogenous c. all sample have 2 or more phases d. all samples are pure

The following errors in procedure will affect the experimental result. Explain how wach action causes an incorrect result. 1) Student A was in a hurry and stopped heating, even though bubbles were still emerging from the rubber tubing. 2) Student B used the measurement of Flask no. 1 to be 250mL, without measuring the volume directed. 3) Student C recorded the temperature in degrees Celcius and used these values in calculations. 4) Water remained on the outside of the flask and on the foil when the final mass was determined.