Please send me the questions in 20 minutes it's very urgent plz 3. An ore was found to contain 39.4 %Fe2O3 (MW-159.69 g/mol). Solve for the% Fe3O4 (MW-231.53 g/mol) in thesample.4. Calculate the pH of a 0.47 M solution ofHOI. (Ka= 2.3 x 10-11). Use 2 decimalplaces in your answer.

4. For weak acid, pH = 1/2 pKa- 1/2 Log C

Answered: 4. Calculate the pH of a 0.47 M…

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4. Calculate the pH of a 0.47 M solution of HOI. (Ka= 2.3 x 10-11). Use 2 decimal places in your answer.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.103QE: A bottle of concentrated hydroiodic acid is 57% HI by weight and has a density of 1.70 g/mL. A...

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Please send me the questions in 20 minutes it's very urgent plz

3. An ore was found to contain 39.4 %
Fe2O3 (MW-159.69 g/mol). Solve for the
% Fe3O4 (MW-231.53 g/mol) in the
sample.
4. Calculate the pH of a 0.47 M solution of
HOI. (Ka= 2.3 x 10-11). Use 2 decimal
places in your answer.

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