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6. What percentage of the soil was contaminated? 7. What situations would a contaminated soil sample be of concern to engineers?

6. What percentage of the soil was contaminated? 7. What situations would a contaminated soil sample be of concern to engineers?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Questions #6 and #7 I need help with. please and thank you! 

1. Look at the items in Bag A. What do you see? peanuts, raisins, and caramel m&m's 2. If peanuts and raisins are the regular components of soil, how many different types of contaminants are present in your soil sample? 3. What is the total mass of your bag? Be sure to subtract the mass of the Ziploc® bag itself. Record this amount in the "Mass of Mixture" column of the chart. 4. Separate the parts of the items and find the mass of each group. Use the following formula to calculate the percentage for each part of the mixture. Record your data in the chart. Mass Mass of Mixture x 100 = % of Mixture 5. Check your answer by adding up all the numbers in Column 4. The total should be 100 because all the parts of your mixture combine to make up the whole mixture. zip lock= 2.6g 1. Item 2. Mass (g) 3. Mass of Mixture (g) 4. % of Mixture Total 86.5 - 2.6 peanuts 86.5g 263.4g 31.85 83.9g raisins 71.6g 263.4g 26.20 69g 71.6 - 2.6 73.3g 263.4g 26.84 70.7g 73.3 - 2.6 M & M's Total = = 84.89 6. What percentage of the soil was contaminated? 7. What situations would a contaminated soil sample be of concern to engineers? Mixtures and Solutions: Lesson 3, Messin' With Mixtures Activity - Soil Sleuths Worksheet 1
Transcribed Image Text:1. Look at the items in Bag A. What do you see? peanuts, raisins, and caramel m&m's 2. If peanuts and raisins are the regular components of soil, how many different types of contaminants are present in your soil sample? 3. What is the total mass of your bag? Be sure to subtract the mass of the Ziploc® bag itself. Record this amount in the "Mass of Mixture" column of the chart. 4. Separate the parts of the items and find the mass of each group. Use the following formula to calculate the percentage for each part of the mixture. Record your data in the chart. Mass Mass of Mixture x 100 = % of Mixture 5. Check your answer by adding up all the numbers in Column 4. The total should be 100 because all the parts of your mixture combine to make up the whole mixture. zip lock= 2.6g 1. Item 2. Mass (g) 3. Mass of Mixture (g) 4. % of Mixture Total 86.5 - 2.6 peanuts 86.5g 263.4g 31.85 83.9g raisins 71.6g 263.4g 26.20 69g 71.6 - 2.6 73.3g 263.4g 26.84 70.7g 73.3 - 2.6 M & M's Total = = 84.89 6. What percentage of the soil was contaminated? 7. What situations would a contaminated soil sample be of concern to engineers? Mixtures and Solutions: Lesson 3, Messin' With Mixtures Activity - Soil Sleuths Worksheet 1
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