1. Using the graph that you created in Graph 1 as a reference, where should the pipet float if the solution was a 13.0% sugar solution? How do you know this?
2. Using the graph that you created in Graph 1 as a reference, determine the carbohydrate content of the three beverages that you measured with your hydrometer.
3. Describe how your results compare to those listed on the food labels for the three beverages (recorded in Data Table 2). Calculate the percent error for each and show your work.
4. What is a monosaccharide and what is its chemical composition?
5. Why do food industries need to determine carbohydrate content? How many Calories are in 1 gram of carbohydrates?
6. How are carbohydrates separated from fats and proteins in foods that contain all three macronutrients?
7. Describe two methods for calculating carbohydrate content that were not used in this laboratory.
8. Define the relative density of a substance. Describe how you used the relative density to determine the carbohydrate content of the three unknown substances.
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Checkpoint 2
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Chemical Dose
/in Uncategorized /by developerChemical+Dosimetry questions
my budget $7
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Chemistry Lab Calculating Carbohydrates
/in Uncategorized /by developer1. Using the graph that you created in Graph 1 as a reference, where should the pipet float if the solution was a 13.0% sugar solution? How do you know this?
2. Using the graph that you created in Graph 1 as a reference, determine the carbohydrate content of the three beverages that you measured with your hydrometer.
3. Describe how your results compare to those listed on the food labels for the three beverages (recorded in Data Table 2). Calculate the percent error for each and show your work.
4. What is a monosaccharide and what is its chemical composition?
5. Why do food industries need to determine carbohydrate content? How many Calories are in 1 gram of carbohydrates?
6. How are carbohydrates separated from fats and proteins in foods that contain all three macronutrients?
7. Describe two methods for calculating carbohydrate content that were not used in this laboratory.
8. Define the relative density of a substance. Describe how you used the relative density to determine the carbohydrate content of the three unknown substances.
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Chemistry Lab Week 2 Assignment
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Chemistry Lab Week 2 Discussion
/in Uncategorized /by developerDiscuss among peers the effect of mercury in the human body.
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Chemistry Lab Week One Discussion
/in Uncategorized /by developerMake a brief description of one of the titration methods analyzed in this laboratory session and provide one practical example of the use of this method in our daily life.
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Chemistry Week 2 Assign 1
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Chemistry Week 2 Discussion 1
/in Uncategorized /by developerDiscuss among peers the effect of mercury in the human body, each student most post an original post and answer to at least one of your peers.
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Chemistry Week 3 Discussion 1
/in Uncategorized /by developerDiscuss the different medical applications of radioactivity.
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Chemistry Week 3 Learning Activities
/in Uncategorized /by developerIonic and Molecular Compounds
1. Name each of the following molecular compounds
a. CO2
b. N2O
c. P2O5
d. N2S3
e. CF4
2. Write the formula of the following molecular compound
a. Carbon tetrachloride
b. Sulfur dioxide
c. Phosphorus pentafluoride
d. Dinitrogen tetroxide
e. Chlorine dioxide
3. Classify each of the following as ionic or molecular and give its name
a. Na2SO4
b. Fe(OH)3
c. CCl4
d. OF2
e. CaS
4. Identify the group in the periodic table of the element X in each of the following ionic compounds
a. XSO4
b. XF3
c. XCl
d. XO
e. X2CO3
5. Classify the bonds in each of the following compounds as ionic bond, polar covalent bond, or non polar covalent bond
a. MgS
b. H-Cl
c. Br-Br
d. H-O-H
e. NaCl
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