Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution at 25 °C. Pb²+ in a solution where μ Pb²+ = Cr³+ in a solution where Cr³+ = = 0.0385 M 0.0174 M Ion Pb²+ 2+ Mg2+ Zn²+ 2+ CrO² PO ZA+ Ce4+ Ion size (α, nm) 0.450 0.800 0.600 0.400 0.900 0.400 1.100 1.100

Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic strength in an aqueous solution at 25 °C. Pb²+ in a solution where μ Pb²+ = Cr³+ in a solution where Cr³+ = = 0.0385 M 0.0174 M Ion Pb²+ 2+ Mg2+ Zn²+ 2+ CrO² PO ZA+ Ce4+ Ion size (α, nm) 0.450 0.800 0.600 0.400 0.900 0.400 1.100 1.100

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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Give mw the answers only please be specific on what the answer is for both not just a bunch of calculations
tion 12 - Chapter 10 Home X ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fclasses.alaska.edu%252Fwebapps%252Fport ter 10 Homework i 2 ts Skipped eBook Hint Print References + Mc Graw Hill NH4NO3 → (Click to select) N20 + Balance the chemical equation. Note that you must select "1" if that is the correct coefficient, though the "1" is not typically written in a balanced equation, but is implied. (Click to select) NH4NO3 5 2 1 JUL 11 Saved (Click to select) H20 AN 1 átv Help A S
10. CHALLENGE. Calculate AHrxn. N2H4(1) + O2(g) → N2(g) + 2 H₂O(1) given: 2 NH3(g) + 3 N2O(g) → 4 N2(g) + 3 H2O(D) N2O(g) + 3 H2(g) → N2H4(D) + H₂O(1) ->> 2 NH3(g) + 12 O2(g) → N2H4(1) + H₂O(1) H₂(g) + O2(g) → H₂O(n) AH = -1013 kJ ΔΗ = -317 kJ AH = -142.9 kJ ΔΗ = -285.8 kJ
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.
100% 41 Safari File Edit View History Bookmarks Window Help Wed 4:51 PM A uk.instructure.com My Questions | bartleby Course Details University of Kentucky - CHE 111 Lab - Fall19 - FRENCH: Quiz.. Calculate the Molarity of Sodium Hydroxide? | Yahoo Answers = CHE111-017-032 > CHE111 Sections 017 to 32 (Tuesdays): General Chemistry I Laboratory (Fall 2019) Fall 2019 Home Account Announcements Dashboard Question #: 11 Syllabus Course Details An aqueous solution containing 0.3845 g of KHP (KHC;H4O4) was titrated with a solution of sodium hydroxide, producing the following titration curve. What is the concentration of the NaOH solution? Courses Modules Titration of KHP with NaOH Piazza Groups 14 Grades 12 Calendar 10 Inbox 6. Help Volume NaOH (ml) DEC 18