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21. What are the formula masses of water, H20, propene C3Hg; and 2-propanol, C3H2O? amu =...
+ + NH3 H20 OH NH4+ What role is water playing in the acid-base chemical reaction...
+ + NH3 H20 OH NH4+ What role is water playing in the acid-base chemical reaction above? O A BASE OB. ACID O C.CONJGATE BASE OD. CONJUGATE ACID QUESTION 32 What is the volume occupied by 0.2 mole of nitrogen gas at 1.0 atmosphere pressure and at 27 C? O A.4.9 L O B. 0.8L O C. 0.44L O D. 22L O E. 1L QUESTION 33 What is the formula mass of CO2? O A 3 amu OB. 44 amu...
Why is the answer D here and not A? (synthesis problem with propene) The product is...
Why is the answer D here and not A? (synthesis problem with
propene)
The product is 1-isoproxypropane, so isn't BH3/NAOH needed
(answer A) because it adds anti-markinikov on propene? The answer
is D, but doesn't H2SO4/H2O add markinov on propene, making the
product 2-isopropoxypropane instead?
10. What sequence of reactions could best be used to prepare 1-isopropoxypropane from propene (i.e.1-propene) in good yield? 10. What sequence of reactions could best be used to prepare 1-isopropoxypropane from propene (i.e. 1-propene) in...
For determining half-lives of radioactive isotopes, it is important to know what the background radiation is...
For determining half-lives of radioactive isotopes, it is important to know what the background radiation is in a given detector over a specific period. The following data were taken in a y -ray detection experiment over 98 ten-second intervals: 58 50 57 58 64 63 54 64 59 41 43 56 60 50 46 59 54 60 59 60 67 52 65 63 55 61 68 58 63 36 42 54 58 54 40 60 64 56 61 51 48...
91 Experiment THE TEMPERATURE DEPENDENCE OF THE SOLUBILITY OF A SALT IN WATER The Pre Lab...
91 Experiment THE TEMPERATURE DEPENDENCE OF THE SOLUBILITY OF A SALT IN WATER The Pre Lab 1. Referring to the solubility graph for KCIO, given earlier in the experiment, indicate whether at 60 °C a solution of 20 grams of KCIO, in 100 grams of water is saturated unsaturated supersaturated solution About how much KCIO, would dissolve in 38 grams of water at 70 °C? Data is shown where the saturation temperature has been found for dissolving 6.5 g of...
For each variable of interest, do the following: 1. Find the mean, five-number summary, range, variance,...
For each variable of interest, do the following: 1. Find the mean, five-number summary, range, variance, and standard deviation. Display these numbers in a format that is easy to understand. 2. For each variable of interest, use its five-number summary to construct a boxplot. Each boxplot must be constructed horizontally, and must be accompanied by a brief descriptive paragraph that assesses whether the data appear to be symmetrical, left-skewed, or right-skewed. Construct a 95% confidence interval for the mean μ...
Conduct a formal hypothesis test of the claim that the mean longevity is less than 57...
Conduct a formal hypothesis test of the claim that the mean longevity is less than 57 days. Test at significance α=0.05. Your written summary of this test must include the following: Your null and alternate hypotheses in the proper format. The type of distribution you used to construct the interval (t or normal). The P-value and its logical relationship to α (≤ or >). Your decision regarding the null hypothesis: reject or fail to reject. A statement regarding the sufficiency/insufficiency...
For each variable of interest – Percent Time Asleep and Longevity – create a grouped frequency...
For each variable of interest – Percent Time Asleep and Longevity – create a grouped frequency histogram. For each histogram, use a class width of 10; use a lower limit of 0 for Percent Time Asleep and 15 for Longevity. Each histogram must include an informative title, along with correct labels for both axes. For each histogram, include a paragraph that answers each of the following questions: Is the histogram symmetric, skewed to the left, or skewed to the right?...
QUESTION 1 The formula mass of ammonium phosphite, (NH 4) 3PO 3, is a. 153.11 amu...
QUESTION 1 The formula mass of ammonium phosphite, (NH 4) 3PO 3, is a. 153.11 amu O b. 125.01 amu c. 97.01 amu d. 133.09 amu QUESTION 2 Naturally occurring element X exists in three isotopic forms: X-28 (27.977 amu, 92.23% abundance), X-29 (28.976 amu, 4.67% abundance), and X-30 (29.974 amu, 3.10% abundance). Calculate the atomic weight of X. a. 27.16 amu b.28.97 amu O c. 86.93 amu d. 48.63 amu e. 28.09 amu QUESTION 3 Balance the following equation...
Create a JavaFX application that generates a 10 x 10 grid. Populate each cell in the grid with a ...
Create a JavaFX application that generates a 10 x 10 grid. Populate each cell in the grid with a random integer in the range [0, 99]. If the integer is divisible by 2, color the cell blue. If the integer is divisible by 3, color the cell yellow. If the integer is divisible by 6, color the cell green. Here's a sample run: Number Grid 74 74 38 57 62 40 42 65 27 38 44 8 48 60 30...
Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores”...
Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores” contains a random sample of 269 STAT 250 students’ final exam scores (maximum of 80) collected over the past two years. Answer the following questions using this data set. a) What proportion of students in our sample earned B’s on the final exam? A letter grade of B is obtained with a score of between 64 and 71 inclusive. Hint: You can do this...
+ + NH3 H20 OH NH4+ What role is water playing in the acid-base chemical reaction above? O A BASE OB. ACID O C.CONJGATE BASE OD. CONJUGATE ACID QUESTION 32 What is the volume occupied by 0.2 mole of nitrogen gas at 1.0 atmosphere pressure and at 27 C? O A.4.9 L O B. 0.8L O C. 0.44L O D. 22L O E. 1L QUESTION 33 What is the formula mass of CO2? O A 3 amu OB. 44 amu...
Why is the answer D here and not A? (synthesis problem with
propene)
The product is 1-isoproxypropane, so isn't BH3/NAOH needed
(answer A) because it adds anti-markinikov on propene? The answer
is D, but doesn't H2SO4/H2O add markinov on propene, making the
product 2-isopropoxypropane instead?
10. What sequence of reactions could best be used to prepare 1-isopropoxypropane from propene (i.e.1-propene) in good yield? 10. What sequence of reactions could best be used to prepare 1-isopropoxypropane from propene (i.e. 1-propene) in...
For determining half-lives of radioactive isotopes, it is important to know what the background radiation is in a given detector over a specific period. The following data were taken in a y -ray detection experiment over 98 ten-second intervals: 58 50 57 58 64 63 54 64 59 41 43 56 60 50 46 59 54 60 59 60 67 52 65 63 55 61 68 58 63 36 42 54 58 54 40 60 64 56 61 51 48...
91 Experiment THE TEMPERATURE DEPENDENCE OF THE SOLUBILITY OF A SALT IN WATER The Pre Lab 1. Referring to the solubility graph for KCIO, given earlier in the experiment, indicate whether at 60 °C a solution of 20 grams of KCIO, in 100 grams of water is saturated unsaturated supersaturated solution About how much KCIO, would dissolve in 38 grams of water at 70 °C? Data is shown where the saturation temperature has been found for dissolving 6.5 g of...
QUESTION 1 The formula mass of ammonium phosphite, (NH 4) 3PO 3, is a. 153.11 amu O b. 125.01 amu c. 97.01 amu d. 133.09 amu QUESTION 2 Naturally occurring element X exists in three isotopic forms: X-28 (27.977 amu, 92.23% abundance), X-29 (28.976 amu, 4.67% abundance), and X-30 (29.974 amu, 3.10% abundance). Calculate the atomic weight of X. a. 27.16 amu b.28.97 amu O c. 86.93 amu d. 48.63 amu e. 28.09 amu QUESTION 3 Balance the following equation...
Create a JavaFX application that generates a 10 x 10 grid. Populate each cell in the grid with a random integer in the range [0, 99]. If the integer is divisible by 2, color the cell blue. If the integer is divisible by 3, color the cell yellow. If the integer is divisible by 6, color the cell green. Here's a sample run: Number Grid 74 74 38 57 62 40 42 65 27 38 44 8 48 60 30...
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