When your sample contain a large amount of water (cannot be removed) and you plan to...
When your sample contain a large amount of water (cannot be removed) and you plan to measure their vibration spectra, what will you do?
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When your sample contain a large amount of water (cannot be
removed) and you plan to...
You have a water sample from a creek that is thought to contain some amount of...
You have a water sample from a creek that is thought to contain some amount of dissolved copper ions. It has no apparent blue color. You set up standards of varying known concentrations of Cu2+, mix 0ml of each into 1.0 ml 10 g/L glucose + 1.0 ml of BCA solution, let them all sit long enough to reach equilibrium (some heat helps them get there faster), and you find these results: Cu2+(mg/L) Absorbance at 562nm 0.0 0.000 2.0 0.150 4.0...
As part of your doctoral thesis you plan to select a random sample of pre-1980 Simmons...
As part of your doctoral thesis you plan to select a random sample of pre-1980 Simmons alumnae. You are interested in estimating the percentage of pre-1980 alumnae that went on to get a graduate degree. You advisor suggests that you select a sample large enough so that you can be 90% confident of a margin of error of 4%. You know that your sample will cost you roughly $2:50 per sample member. Compute a conservatively large sample size.
If a large amount of Sol should you do? benzoic acid product disappears when you wash...
If a large amount of Sol should you do? benzoic acid product disappears when you wash it what are possible reasons and what
When a large amount of water was poured on 100. g of calcium carbide, 28.3g of...
When a large amount of water was poured on 100. g of calcium carbide, 28.3g of acetylene was produced. Calculate the percent yield of acetylene in the reaction.
1. Describe the changes in your potato sample when placed in distilled water. Based on these...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
Create an action plan to help you become a successful manager. In your plan, explore, examine,...
Create an action plan to help you become a successful manager. In your plan, explore, examine, and determine the four functions of management skills that are necessary for you to become a successful manager. What type of leadership characteristics do you want to demonstrate and which controlling techniques would you use to measure performance?
7. As part of an ongoing monitoring program, you are testing a sample of water from...
7. As part of an ongoing monitoring program, you are testing a sample of water from the Chattahoochee River north of Atlanta. Your 10' final dilution (undiluted) plate has 56 Escherichia coli colonies on it. One milliliter was pipetted onto the plate. The EPA safety standards for recreational freshwater state that the water cannot contain more than 235 E. coli per 100 ml. Is the river safe to swim or kayak in? Why or why not?
You need to perform gravimetric analysis of a water sample in order to determine the amount...
You need to perform gravimetric analysis of a water sample in order to determine the amount of Ag present. List three aqueous solutions that would be suitable for mixing with the sample to perform the analysis b. a. Would adding KNO3(aq) allow you to perform the analysis? Assume you have performed the analysis and the silver solid that formed is moderately soluble. How might this affect your analysis results? C.
You need to perform gravimetric analysis of a water sample...
14. You start saving for your retirement at age 22. You plan to invest $3,000 per...
14. You start saving for your retirement at age 22. You plan to invest $3,000 per year month for 40 years with your first investment occurring at the end of the current year. 1. How large is your retirement fund if you invest at 6%? 2. How large is your retirement fund if you invest at 12%? 3. Assuming you invest at 12%, what is the total amount of your investment? What is the total amount of your investment earnings?
how do you do this ? Some Calculations You started out with a known amount of...
how do you do this ?
Some Calculations You started out with a known amount of harium chloride and sodium sulfate. How much solid product should you collect? Show your calculations. How much did you collect? What is your percent yield? Which reactant should be the limiting reagent? Which reactant should be the excess reagent? Proving the identity of the Limiting and Excess Reagents There are two scenarios for the identity of the contents of the beaker containing the filtrate....
If a large amount of Sol should you do? benzoic acid product disappears when you wash it what are possible reasons and what
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
7. As part of an ongoing monitoring program, you are testing a sample of water from the Chattahoochee River north of Atlanta. Your 10' final dilution (undiluted) plate has 56 Escherichia coli colonies on it. One milliliter was pipetted onto the plate. The EPA safety standards for recreational freshwater state that the water cannot contain more than 235 E. coli per 100 ml. Is the river safe to swim or kayak in? Why or why not?
You need to perform gravimetric analysis of a water sample in order to determine the amount of Ag present. List three aqueous solutions that would be suitable for mixing with the sample to perform the analysis b. a. Would adding KNO3(aq) allow you to perform the analysis? Assume you have performed the analysis and the silver solid that formed is moderately soluble. How might this affect your analysis results? C.
You need to perform gravimetric analysis of a water sample...
14. You start saving for your retirement at age 22. You plan to invest $3,000 per year month for 40 years with your first investment occurring at the end of the current year. 1. How large is your retirement fund if you invest at 6%? 2. How large is your retirement fund if you invest at 12%? 3. Assuming you invest at 12%, what is the total amount of your investment? What is the total amount of your investment earnings?
how do you do this ?
Some Calculations You started out with a known amount of harium chloride and sodium sulfate. How much solid product should you collect? Show your calculations. How much did you collect? What is your percent yield? Which reactant should be the limiting reagent? Which reactant should be the excess reagent? Proving the identity of the Limiting and Excess Reagents There are two scenarios for the identity of the contents of the beaker containing the filtrate....
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