20.0mL of 0.25OM K2Cr2O7(aq) is added to to 100.0mL of solution that contains both 0.120M Cr(NO3)2(aq) and O.50OM HNO3(aq). The dichromate and the chromium(II) ions react to give chromium(III) ions. b) Now that you have the correctly balanced net ionic equation, calculate the concentration of all ions in the solution after the reaction (you may assume the reaction went to completion). Check your concentrations to make sure that the solution is electrically neutral. b1) concentration of NO3": M

20.0mL of 0.25OM K2Cr2O7(aq) is added to to 100.0mL of solution that contains both 0.120M Cr(NO3)2(aq) and O.50OM HNO3(aq). The dichromate and the chromium(II) ions react to give chromium(III) ions. b) Now that you have the correctly balanced net ionic equation, calculate the concentration of all ions in the solution after the reaction (you may assume the reaction went to completion). Check your concentrations to make sure that the solution is electrically neutral. b1) concentration of NO3": M

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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PROVISIONAL LEWIS STRUCTURES T01/S01 For each provisional structure, identify if it is the correct Lewis structure (C) or if it needs to be modified according to procedure MA or MB to obtain the correct Lewis structure. MA. Form multiple bonds to the central atom using lone pair on the terminal atom(s) until the central atom has an octet (or septet). MB. Form multiple bonds to the central atom using lone pair on the terminal atom(s) until the central atom has a formal charge of zero (0) or until two double bonds are formed. A provisional structure has the valence electrons distributed in order as (1) a bond between each pair of atoms, (2) an octet for each ligand (terminal) atom or ligand group (CH3, NH2 or OH) and (3) any remaining electrons on the central atom.
For each of the following equilibria, write the equilibrium constant expression for Ke Y Part A 2N₂Os (9) 4NO₂(g) + O₂(g) O Ke = O K₂= O K. OK- Submit Part B [NO₂[0₂] N₂O₁ Ke = [NO₂¹0₂] N₂0₂ N₂O₁] NO₂0₁ N₂O, NO₂] O₂ Request Answer 3F2(g) + Cl₂ (9) 2CIFs (9) (CIF₂ CI, P ICE, P Pearson
5b
3
Asnwer is 0.81
1LDA 2) 10. Br OH GMH,SO,/A NH2 11. NH2 12.
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How did they get 3? Do you always have to divide?
3. Derive the expression for the molar mass in terms of the mass, pressure, volume, and temperature of a gas (hint: use the ideal gas law and the definition of molar mass in Equation (2)).
b. 3.20 x 10-4 4.72 x 108
Choose the best answer.