Kf < >=Watch Online F...AAO STATES OF MATTERUsing the Kf and Kb equations with electrolytesgExplanationC clumperruckse...Checkwww-awa.aleks.comx10G Sign in - Googl... XA ALEKS - Andre...A certain liquid x has a normal freezing point of -8.10 °c and a freezing pointdepression constant K₁=2.69 °C-kg-mol¹. A solution is prepared by dissolvingsome glycine (C₂H₂NO₂) in 600. g of x. This solution freezes at -10.4 °C. Calculatethe mass of C₂H₂NO₂ that was dissolved.Round your answer to 2 significant digits.1/5G gm/mol - Goog...Ⓒ2023 McGraw Hill LLC. All rights Reserved. Terms of UseAndrew?alloArPrivacy Center | Accessibility

mass of liquid X = 600. g = 0.6 kgFreezing point of liquid X (Tf(liquid X)) = -8.10°CFreezing point…

O STATES OF MATTER Using the Kf and Kb equations with electrolytes g A certain liquid x has a normal freezing point of -8.10 °c and a freezing point depression constant K₁=2.69 °C kg mol A solution is prepared by dissolving some glycine (C₂H₂NO₂) in 600. g of x. This solution freezes at - 10.4 °c. Calculate the mass of C₂H, NO₂ that was dissolved. Round your answer to 2 significant digits. Explanation Check 1/5 0x10 Andrew ? B olo Ar © 2023 McGraw HIII LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

O STATES OF MATTER Using the Kf and Kb equations with electrolytes g A certain liquid x has a normal freezing point of -8.10 °c and a freezing point depression constant K₁=2.69 °C kg mol A solution is prepared by dissolving some glycine (C₂H₂NO₂) in 600. g of x. This solution freezes at - 10.4 °c. Calculate the mass of C₂H, NO₂ that was dissolved. Round your answer to 2 significant digits. Explanation Check 1/5 0x10 Andrew ? B olo Ar © 2023 McGraw HIII LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 8 fluid ounce glass of the beverage you used in this lab. Assume that the concentration of Allura Red in the beverage is 0.000054 M. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL Do not include units with your answer.
ASSAY Calibration solutions Calibration solutions of naproxen in the range 5 – 25 μg/mL were prepared. Sample preparation 20 tablets weighing 12.3819 g were crushed to a fine powder. A portion of the powder (145.4 mg) was shaken with approximately 150 mL of acetic acid (0.05 M) for 5 min and then made up to volume in a 250 mL volumetric flask (stock solution). Approximately 50 mL of the stock solution was filtered and a 25 mL aliquot was diluted to 100 mL in a volumetric flask. 10 mL of the resulting solution was further diluted to 100 mL with acetic acid (0.05 M). Analysis The standards and sample solutions were analyzed by HPLC under the following conditions: Column: octadecylsilyl (ODS), 4.6 mmx150 mm, mobile phase: acetonitrile : 0.05 M acetic acid (85:15), flow rate: 1 ml/min, UV detection at 243 nm. Results: A calibration curve of concentration versus peak area was constructed for the standard solutions and gave the straight-line equation: y = 3555.6x + 85, r = 0.9999 The area…