S1: Revisit Luisacould you change L"small particles" more accurateUltrascope views?52: Examine the following 10,000,000 x magnification Ultrascope views. Indicatewhether each view represents an element, compound, or mixture/solution.Model AModel B10.000 000 xModel C10.000.00010,000,000 xTRASCOPEULTRASCOPEULTRASCOPE"I'm confused! Water isnd

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Answered: S1: Revisit Luisa could you change L…

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 109AE: Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray...

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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.
_____1. Which of the ff you can NOT use to measure liquids? a) beaker b) serological pipet c) graduated cylinder d) volumetric pipette _____2. It can be used to contain samples for heating with flames >400 °C a) test tube b) O-ring c) Bunsen burner d) crucible with cover _____3. The ff can be used for boiling a solution of salt, EXCEPT a) beaker b) Bunsen burner c) Buchner funnel d) Wire gauze ____4. Which of the should be used when you want to separate OIL and WATER? a) buret b) separatory funnel c) buchner funnel d) Pasteur pipette
1. How many milliliters of concentrated hydrochloric acid, 38% (wt/wt), specific gravity 1.19, are requiredto prepare 1 L of a 0.100 M solution? Assume density and specific gravity are equal within threesignificant figures. (H-1.008 amu, Cl-35.45 amu) 2. A 0.456-g sample of an ore is analyzed for chromium and found to contain 0.560 mg Cr2O3.Express the concentration of Cr2O3 in the sample as %w/w.
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a. If 55mg of CaC2O4 is placed in a 250mL pack of H2O nanopure at 25 celcius, how much (in mg) of CaC2O4 remains undesolved? b. If 100mg of CaC2O4 is placed in a 500mL pack of HCl at 25 celcius, how much (in mg) of CaC2O4 remains undesolved? FM: 128g/mol Pksp= 7.90
A physician orders isotonic sodium lactate 5 mL/kg body mass to be delivered by IV for a 164-lb patient with severe acidosis. The IV tubing delivers at the rate of 20 drops/mL and set for a flow rate of 15 drops/min. How long should the IV be set to run for this patient?
A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90×10−2 M Cu.2.90×10−2 M Cu. Calculate the mass of copper in the Jefferson nickel used to make the first solution.
1. Order: isoproterenol 2 mg in 500 mL D5W to infuse at 15 mL/hrPatient weight: 20 kgHow many mcg/kg/min is the patient receiving? (Round to the 2nd decimal place/hundredth place
A certain antihistamine is often prescribed for allergies. Atipical dose for 100 pound person is 22mg every six hours. Complete parts a) and b) below. a) following this dosage, how many 12.3 mg chewable tablets would be taken in a week? b) this antihistamine also comes in a liquorfirm with a concentration of 12.3 mg/5ml. Following the prescribed dosage, how much liquid antihistamine should a 100 pound person take in a week. a) A 100 pound person could tske ___ tablets in a week. b) a 100 pound person could take ___ ml in a week.
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