Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Name: Classification of Matter. Separation of Mixtures Postlab questions: Your instructor may ask you to answer these in your lab notebook, or to answer directly on this page and turn it in, or to include these answers in a formal lab report. Follow your instructor's directions. 1) A CHEM1411 student doing the separation of solid obtained the data below. The masses on the left are the experimental masses obtained by the students after the separation. The masses on the right are the theoretical masses that were used by the instructor to prepare the sample. To determine the % recovered for each component You need to calculate a ratio between experimental mass (mass found) and the theoretical mass multiplied by 100. Experimental mass found/theoretical mass grams x 100 = % recovered. Based on these results, Part 1: Separation of solids Experimental mass of sand: Experimental mass of iron: Experimental mass of salt: 15.359 g. 3.253 g 16.965 g Minimerter Theoretical: Theoretical: Theoretical 15.891 g 3.189 g 17.001g a) calculate the % recovery for each substance. Show your calculation. b) Comment on the accuracy of the results from this table. (The theoretical values is what you were expecting, the experimental value is what was actually collected after the separation) 2) Using the data above determine the % composition of the original sample (How much of each substance in % mass was in the original sample, use the theoretical values) Show all your calculation. 3) Using the data above, calculate how many moles and how many atoms of iron (Fe) were experimentally separated from the sample. Show all your calculation. I 4) Sand is basically silicon dioxide (SiO₂). Determine the number of molecules that were contained in the original sample. How many atoms of oxygen were contained in the original sample? (Use the theoretical values) Show all your calculation.

Name: Classification of Matter. Separation of Mixtures Postlab questions: Your instructor may ask you to answer these in your lab notebook, or to answer directly on this page and turn it in, or to include these answers in a formal lab report. Follow your instructor's directions. 1) A CHEM1411 student doing the separation of solid obtained the data below. The masses on the left are the experimental masses obtained by the students after the separation. The masses on the right are the theoretical masses that were used by the instructor to prepare the sample. To determine the % recovered for each component You need to calculate a ratio between experimental mass (mass found) and the theoretical mass multiplied by 100. Experimental mass found/theoretical mass grams x 100 = % recovered. Based on these results, Part 1: Separation of solids Experimental mass of sand: Experimental mass of iron: Experimental mass of salt: 15.359 g. 3.253 g 16.965 g Minimerter Theoretical: Theoretical: Theoretical 15.891 g 3.189 g 17.001g a) calculate the % recovery for each substance. Show your calculation. b) Comment on the accuracy of the results from this table. (The theoretical values is what you were expecting, the experimental value is what was actually collected after the separation) 2) Using the data above determine the % composition of the original sample (How much of each substance in % mass was in the original sample, use the theoretical values) Show all your calculation. 3) Using the data above, calculate how many moles and how many atoms of iron (Fe) were experimentally separated from the sample. Show all your calculation. I 4) Sand is basically silicon dioxide (SiO₂). Determine the number of molecules that were contained in the original sample. How many atoms of oxygen were contained in the original sample? (Use the theoretical values) Show all your calculation.

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
Name: Classification of Matter. Separation of Mixtures Postlab questions: Your instructor may ask you to answer these in your lab notebook, or to answer directly on this page and turn it in, or to include these answers in a formal lab report. Follow your instructor's directions. 1) A CHEM1411 student doing the separation of solid obtained the data below. The masses on the left are the experimental masses obtained by the students after the separation. The masses on the right are the theoretical masses that were used by the instructor to prepare the sample. To determine the % recovered for each component You need to calculate a ratio between experimental mass (mass found) and the theoretical mass multiplied by 100. Experimental mass found/theoretical mass grams x 100 = % recovered. Based on these results, Part 1: Separation of solids Experimental mass of sand: Experimental mass of iron: Experimental mass of salt: 15.359 g. 3.253 g 16.965 g Minimerter Theoretical: Theoretical: Theoretical 15.891 g 3.189 g 17.001g a) calculate the % recovery for each substance. Show your calculation. b) Comment on the accuracy of the results from this table. (The theoretical values is what you were expecting, the experimental value is what was actually collected after the separation)
Transcribed Image Text:Name: Classification of Matter. Separation of Mixtures Postlab questions: Your instructor may ask you to answer these in your lab notebook, or to answer directly on this page and turn it in, or to include these answers in a formal lab report. Follow your instructor's directions. 1) A CHEM1411 student doing the separation of solid obtained the data below. The masses on the left are the experimental masses obtained by the students after the separation. The masses on the right are the theoretical masses that were used by the instructor to prepare the sample. To determine the % recovered for each component You need to calculate a ratio between experimental mass (mass found) and the theoretical mass multiplied by 100. Experimental mass found/theoretical mass grams x 100 = % recovered. Based on these results, Part 1: Separation of solids Experimental mass of sand: Experimental mass of iron: Experimental mass of salt: 15.359 g. 3.253 g 16.965 g Minimerter Theoretical: Theoretical: Theoretical 15.891 g 3.189 g 17.001g a) calculate the % recovery for each substance. Show your calculation. b) Comment on the accuracy of the results from this table. (The theoretical values is what you were expecting, the experimental value is what was actually collected after the separation)
2) Using the data above determine the % composition of the original sample (How much of each substance in % mass was in the original sample, use the theoretical values) Show all your calculation. 3) Using the data above, calculate how many moles and how many atoms of iron (Fe) were experimentally separated from the sample. Show all your calculation. I 4) Sand is basically silicon dioxide (SiO₂). Determine the number of molecules that were contained in the original sample. How many atoms of oxygen were contained in the original sample? (Use the theoretical values) Show all your calculation.
Transcribed Image Text:2) Using the data above determine the % composition of the original sample (How much of each substance in % mass was in the original sample, use the theoretical values) Show all your calculation. 3) Using the data above, calculate how many moles and how many atoms of iron (Fe) were experimentally separated from the sample. Show all your calculation. I 4) Sand is basically silicon dioxide (SiO₂). Determine the number of molecules that were contained in the original sample. How many atoms of oxygen were contained in the original sample? (Use the theoretical values) Show all your calculation.
AI-Generated Solution
AI-generated content may present inaccurate or offensive content that does not represent bartleby’s views.
steps

Unlock instant AI solutions

Tap the button
to generate a solution

SEE SOLUTION
Similar questions
  • SEE MORE 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