why is the results of a corn syrup solution different of a pure water, when we...
Homework Answers
A corn syrup is a colloidal solution, that is it contains some solid particle which is dispersed in the solvent. When a laser beam is allowed to pass through the colloidal solution, there is scattering of light by the colloidal particles. This scattering of light by colloidal particles is known as Tyndall effect.
But pure water donot contain any such particle. Hence, the case.
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is the results of a corn syrup solution different of a pure water,
when we...
When water is added to ethylene glycol, the viscosity of the solution decreases when compared to...
When water is added to ethylene glycol, the viscosity of the solution decreases when compared to pure ethylene glycol. Which of the following is the BEST explanation of why this occurs? Ethylene glycol is thick and water is thin, so when mixed together it makes a medium thick solution The water molecules increase the intermolecular interactions between the ethylene glycol molecules, which allow them interact with other molecules, the resulting solution less viscous. The water molecules increase the intermolecular interactions...
(2) When we discuss body composition results with an individual, why do you think that we...
(2) When we discuss body composition results with an individual, why do you think that we as health professionals should carefully choose our words and try to soften what otherwise may be a harsh reality of poor results? Keep in mind, that even though we will be particular with what we say, that doesn't mean we don't report results or just simply glaze over them to make the individual feel better. (3) Body composition is a very broad term as...
6) Pure water cannot conduct electricity so why do we have to be care ful with...
6) Pure water cannot conduct electricity so why do we have to be care ful with electrical appliances near water in our homes? 7) List and explain the 3 partcles and 1 ray given off in radioactive decay and explain what they come from if neoessary. Also explain the effect on the nucleus when each decay happens. 8) If the solubility limit of sodium acetate (Molar mass 82 g/mol) at room temp is 76 grams per 100 grams of water,...
Question 2: An aqueous solution containing 4.23 g of an optically pure compound, (+)-Porgsareawesome (MW = 213.4 g/...
Question 2: An aqueous solution containing 4.23 g of an optically pure compound, (+)-Porgsareawesome (MW = 213.4 g/mol) was diluted to 700.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured rotation was +90' at 25.0'C. a) On the answer sheet provided, set up the equation to give the compound's specific T = rotation - you do not need to do any actual math! Hint: Make sure to use proper units. Use the equation at...
Question 2: An aqueous solution containing 4.23 g of an optically pure compound, (+)-Porgsareawesome (MW=213.4 g/mol)...
Question 2: An aqueous solution containing 4.23 g of an optically pure compound, (+)-Porgsareawesome (MW=213.4 g/mol) was diluted to 700.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured rotation was +90' at 25.0'C. a) On the answer sheet provided, set up the equation to give the compound's specific rotation - you do not need to do any actual math! Hint: Make sure to use proper units. Use the equation at left as your guide:...
values differ, give reasons as why they are different. ruct Table 2. Results of the Biuret...
values differ, give reasons as why they are different. ruct Table 2. Results of the Biuret Test Color with Biuret Reagent Test Tube Contents Questions: 1) Which tubes contain protein? Describe a positive biuret test for protein based on your experimental results. the Rpomin Cole tor 丹 ts in proteins 2) Based on your qualitative (visual) observations of the Biuret test results, do all three tubes contain the same amount of protein? How do you know? 3) Explain method by...
with steps 6) Pure water cannot conduct electricity so why do we have to be careful with electrical appliances near water our homes? 7) List and explain the 3 partcles and 1 ray given off in ra...
with steps
6) Pure water cannot conduct electricity so why do we have to be careful with electrical appliances near water our homes? 7) List and explain the 3 partcles and 1 ray given off in radioactive decay and explain what they come from if necessary. Also explain the effect on the nucleus when each decay happens. 8) If the solubility limit of sodium acetate (Molar mass 82 g/mol) at room temp is 76 grams per 100 grams of water,...
Elimination Reactions Prelab Date 1. Explain why we get a different product when we use bulky...
Elimination Reactions Prelab Date 1. Explain why we get a different product when we use bulky bases compared to smal bases. (3 pts) 2. If we start with 25.0 mL of 0.100 M sodium methoxide and 25.0 g of 2-bromobutane, what will be the theoretical yield of your product? (Use dimensional analysis/ Do not break up your steps/Read the beginning of your lab to guide you on how to do this problem). (3 pts) 3. How can one determine which...
5. Why does benzene float on water? 6. What is the meaning of a boiling point?...
5. Why does benzene float on water? 6. What is the meaning of a boiling point? Provide a scientific definition. 7. What does anion mean? 8. The insoluble compound (the white ppt) resulted from testing for SO4-2 ion is ------------------------- 9. The gas bubbles that are produced when adding HCl to a solution that contains CO3-2 represents the formation of ______________. 10. When a solution of Cl- ion is mixed with a solution of AgNO3 (in acidic environment), what is...
Options for each question: 6 M HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH...
Options for each question: 6 M
HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH
solution
Question 8 Status: Not yet answered Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Reconstitute benzoic acid from aqueous layer Choose... Extract benzoic acid into the aqueous layer Choose... Reconstitute aniline from aqueous layer Choose.. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Extract...
When water is added to ethylene glycol, the viscosity of the solution decreases when compared to pure ethylene glycol. Which of the following is the BEST explanation of why this occurs? Ethylene glycol is thick and water is thin, so when mixed together it makes a medium thick solution The water molecules increase the intermolecular interactions between the ethylene glycol molecules, which allow them interact with other molecules, the resulting solution less viscous. The water molecules increase the intermolecular interactions...
(2) When we discuss body composition results with an individual, why do you think that we as health professionals should carefully choose our words and try to soften what otherwise may be a harsh reality of poor results? Keep in mind, that even though we will be particular with what we say, that doesn't mean we don't report results or just simply glaze over them to make the individual feel better. (3) Body composition is a very broad term as...
6) Pure water cannot conduct electricity so why do we have to be care ful with electrical appliances near water in our homes? 7) List and explain the 3 partcles and 1 ray given off in radioactive decay and explain what they come from if neoessary. Also explain the effect on the nucleus when each decay happens. 8) If the solubility limit of sodium acetate (Molar mass 82 g/mol) at room temp is 76 grams per 100 grams of water,...
Question 2: An aqueous solution containing 4.23 g of an optically pure compound, (+)-Porgsareawesome (MW = 213.4 g/mol) was diluted to 700.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured rotation was +90' at 25.0'C. a) On the answer sheet provided, set up the equation to give the compound's specific T = rotation - you do not need to do any actual math! Hint: Make sure to use proper units. Use the equation at...
Question 2: An aqueous solution containing 4.23 g of an optically pure compound, (+)-Porgsareawesome (MW=213.4 g/mol) was diluted to 700.0 mL with water and placed in a polarimeter tube 15.0 cm long. The measured rotation was +90' at 25.0'C. a) On the answer sheet provided, set up the equation to give the compound's specific rotation - you do not need to do any actual math! Hint: Make sure to use proper units. Use the equation at left as your guide:...
values differ, give reasons as why they are different. ruct Table 2. Results of the Biuret Test Color with Biuret Reagent Test Tube Contents Questions: 1) Which tubes contain protein? Describe a positive biuret test for protein based on your experimental results. the Rpomin Cole tor 丹 ts in proteins 2) Based on your qualitative (visual) observations of the Biuret test results, do all three tubes contain the same amount of protein? How do you know? 3) Explain method by...
with steps
6) Pure water cannot conduct electricity so why do we have to be careful with electrical appliances near water our homes? 7) List and explain the 3 partcles and 1 ray given off in radioactive decay and explain what they come from if necessary. Also explain the effect on the nucleus when each decay happens. 8) If the solubility limit of sodium acetate (Molar mass 82 g/mol) at room temp is 76 grams per 100 grams of water,...
Elimination Reactions Prelab Date 1. Explain why we get a different product when we use bulky bases compared to smal bases. (3 pts) 2. If we start with 25.0 mL of 0.100 M sodium methoxide and 25.0 g of 2-bromobutane, what will be the theoretical yield of your product? (Use dimensional analysis/ Do not break up your steps/Read the beginning of your lab to guide you on how to do this problem). (3 pts) 3. How can one determine which...
Options for each question: 6 M
HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH
solution
Question 8 Status: Not yet answered Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Reconstitute benzoic acid from aqueous layer Choose... Extract benzoic acid into the aqueous layer Choose... Reconstitute aniline from aqueous layer Choose.. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Extract...
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