Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Mass of unknown ammonium salt Molarity of NaOH(aq), M2 Molarity of HCl(aq), M1 Volume of NaOH(aq) measured For back-titration Initial Volume of HCl(aq) used Final Volume of HCl(aq) used Volume of HCl(aq) used, V1 End Point (Color Change) 0.400g 0.1938 M 0.1942 M 50.00mL OmL 0.415. g 0.1938 M 0.1942 M 50.00mL 23.00mL 42.80mL 50.00ml 23.00mL 50.00mL blue green Yellow 0.403g 0.1938 M 0.1942 M 50.00ML OmL 20.80mL 50.00 mL

Mass of unknown ammonium salt Molarity of NaOH(aq), M2 Molarity of HCl(aq), M1 Volume of NaOH(aq) measured For back-titration Initial Volume of HCl(aq) used Final Volume of HCl(aq) used Volume of HCl(aq) used, V1 End Point (Color Change) 0.400g 0.1938 M 0.1942 M 50.00mL OmL 0.415. g 0.1938 M 0.1942 M 50.00mL 23.00mL 42.80mL 50.00ml 23.00mL 50.00mL blue green Yellow 0.403g 0.1938 M 0.1942 M 50.00ML OmL 20.80mL 50.00 mL

Chemistry
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...
See similar textbooks
icon
Related questions
Question
Using the data below please do the calculations in the image attached Both images go together Please please answer super super fast it’s super important
Data Table for Unknown # 8 1 Mass of unknown ammonium salt 2 Molarity of NaOH(aq), M2 3 Molarity of HCl(aq), M1 4 Volume of NaOH(aq) measured For back-titration 5 Initial Volume of HCl(aq) used Final Volume of HCl(aq) used 6 7 Volume of HCl(aq) used, V1 End Point (Color Change) 8 Trial 1 0.400q 0.1938 M 0.1942 M 50.00mL OmL Trial 2 0.415a 0.1938 M 0.1942 M 50.00mL 23.00mL 42.80mL 50.00ml 23.00mL 50.00mL blue green → Yellow Trial 3 0.403g 0.1938 M 0.1942 M 50.00mL OmL 20.80mL 50.00mL
Transcribed Image Text:Data Table for Unknown # 8 1 Mass of unknown ammonium salt 2 Molarity of NaOH(aq), M2 3 Molarity of HCl(aq), M1 4 Volume of NaOH(aq) measured For back-titration 5 Initial Volume of HCl(aq) used Final Volume of HCl(aq) used 6 7 Volume of HCl(aq) used, V1 End Point (Color Change) 8 Trial 1 0.400q 0.1938 M 0.1942 M 50.00mL OmL Trial 2 0.415a 0.1938 M 0.1942 M 50.00mL 23.00mL 42.80mL 50.00ml 23.00mL 50.00mL blue green → Yellow Trial 3 0.403g 0.1938 M 0.1942 M 50.00mL OmL 20.80mL 50.00mL
Calculations* A B 1 2 3 4 NH4+(aq) + OH-(aq) = NH3(aq) + H2O(1) From back titration of NaOH(aq) with HCl(aq) M1V1=M2V2 Find V2, the volume of left-over NaOH(aq) From equation 1 Find the volume (V3) of NaOH(aq) reacted (used) in equation 1 V3 = volume measured - volume left-over V350.00 mL - V2 6 Find the moles of NaOH(aq) used in equation 1 M = mol/L mol = ML mol = MV3 At neutralization (assuming #eq = 1) mol NH4+ salt(aq) = mol NaOH(aq) Find the molar mass of ammonium salt mol = mass equation 1 molar mass (make sure V3 is the volume in L) 5 If the calculated mm (from step 4 above) matches the mm given in the Table, #eq = 1, eq mass is same as the calculated mm. If the calculated mm matches the eq mass and not the mm, #eq = 2 molar mass = 2 * eq mass Q Test: Chem 1A lab manual
Transcribed Image Text:Calculations* A B 1 2 3 4 NH4+(aq) + OH-(aq) = NH3(aq) + H2O(1) From back titration of NaOH(aq) with HCl(aq) M1V1=M2V2 Find V2, the volume of left-over NaOH(aq) From equation 1 Find the volume (V3) of NaOH(aq) reacted (used) in equation 1 V3 = volume measured - volume left-over V350.00 mL - V2 6 Find the moles of NaOH(aq) used in equation 1 M = mol/L mol = ML mol = MV3 At neutralization (assuming #eq = 1) mol NH4+ salt(aq) = mol NaOH(aq) Find the molar mass of ammonium salt mol = mass equation 1 molar mass (make sure V3 is the volume in L) 5 If the calculated mm (from step 4 above) matches the mm given in the Table, #eq = 1, eq mass is same as the calculated mm. If the calculated mm matches the eq mass and not the mm, #eq = 2 molar mass = 2 * eq mass Q Test: Chem 1A lab manual
Expert Solution
steps

Step by step

Solved in 4 steps with 6 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Basics of Titrimetric Analysis
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS