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If reactants appear in the rate law as the concentration of
If reactants appear in the rate law as the concentration of the reactant cubed, the reaction is said to be second order in said reactant. True FalseFor the reaction 2A + B , the rate law is rate = k[… read more
DebdattaBhattacharya
DebdattaBhattacharya
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What is an expression of the dependence of the reaction rate
What is an expression of the dependence of the reaction rate upon the reactant concentrations? chemical kinetics rate law reaction order reaction rateA measure of the change in reactant (or product) c… read more
DebdattaBhattacharya
DebdattaBhattacharya
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1. For the reaction 2A + ---> 3C the rate law is rate =
1. For the reaction 2A + B---> 3C the rate law is rate = k[A][B]2. What will happen to the rate if the concentration of A is kept the same and the concentration of B is tripled? Reaction rate incre… read more
DebdattaBhattacharya
DebdattaBhattacharya
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1. The reaction starch + H2O yields glucose is an example of
1. The reaction starch + H2O yields glucose is an example of a hydrolysis reaction. True False2. A hydrolysis reaction occurs when a larger organic molecule is broken down into the smaller organic mol… read more
DebdattaBhattacharya
DebdattaBhattacharya
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3. A _____ reaction is when two organic molecules combine to
3. A _____ reaction is when two organic molecules combine to form one organic molecule and a water molecule is released. 1. hydrolysis 2. equilibrium 3. condensation5. Iron ions bond with _____ in sol… read more
DebdattaBhattacharya
DebdattaBhattacharya
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Science Question from a Junior ** Please see attached
Science Question from a Junior **Hi, Please see attached question in Science. Need help in solving the questions following the passage.… read more
Tom
Tom
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Click on the Hess's law of constant heat summation button
Click on the Hess's law of constant heat summation button within the activity and use the example shown to calculate the reaction enthalpy, ΔH, for the following reaction: CH4(g)+2O2(g)→CO2(g)+2H2O(l)… read more
STEM_Tutor
STEM_Tutor
Doctoral Degree
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HNO3 (aq) + KOH (aq) → KNO3 (aq) + H2O (l) What spectator
HNO3 (aq) + KOH (aq) → KNO3 (aq) + H2O (l)What spectator ions are present in this neutralization reaction above?Group of answer choicesHNO3, K+OH-, H+NO3-, H+NO3-, K+SO42-, OH-, K+… read more
Ashleigh T
Ashleigh T
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Given the following information 2NO(g) + O2(g) → 2NO2(g)
Given the following information2NO(g) + O2(g) → 2NO2(g) LaTeX: \DeltaΔH° = -173 kJ2N2(g) + 5O2(g) + 2H2O(l) → 4HNO3(aq) LaTeX: \DeltaΔH° = -255 kJN2(g) + O2(g) → 2NO(g) LaTeX: \DeltaΔH° = +181 kJfind … read more
Ashleigh T
Ashleigh T
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Consider burning propane, C3H8 as shown below with the
Consider burning propane, C3H8 as shown below with the reaction's corresponding standard molar enthalpy of reaction. How many grams of water is produced when 5465 kJ of heat is released to the surroun… read more
Ashleigh T
Ashleigh T
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What are the expected products for the following reaction?
What are the expected products for the following reaction? Select all that apply.LaTeX: HNO_3\left(aq\right)+NaHCO_3\left(aq\right)\:\longrightarrow\:? H N O 3 ( a q ) + N a H C O 3 ( a q ) ⟶ ?Group o… read more
STEM_Tutor
STEM_Tutor
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Totally lost on this. 1. A patient is classified as having
1. A patient is classified as having gestational diabetes if their average glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink is ingested. Rebecca's doctor is concerned that she may suffer from gestational diabetes. There is variation both in the actual glucose level and in the blood test that measures the level. Rebecca's measured glucose level one hour after ingesting the sugary drink varies according to the Normal distribution with μ=140+# mg/dl and σ=#+1 mg/dl, where # is the last digit of your GCU student ID number. Using the Central Limit Theorem, determine the probability of Rebecca being diagnosed with gestational diabetes if her glucose level is measured: a. Once? b. n=#+2 times, where # is the last digit of your student ID? c. n=#+4 times, where # is the last digit of your student ID? d. Comment on the relationship between the probabilities observed in (a), (b), and (c). Explain, using concepts from lecture why this occurs and what it means in context.For each part, insert your sketch of the required area under the normal curve. In addition, include a screenshot of your Excel computation to find this area. i. Insert screenshot and figure for part (a)ii. Insert screenshot and figure for part (b)iii. Insert screenshot and figure for part (c)iv. Comment on the relationship among the probabilities in parts (a),(b), and (c).2. Suppose next that we have even less knowledge of our patient, and we are only given the accuracy of the blood test and prevalence of the disease in our population. We are told that the blood test is 9# ***** reliable, this means that the test will yield an accurate positive result in 9#% of the cases where the disease is actually present. Gestational diabetes affects #+1 percent of the population in our patient's age group, and that our test has a false positive rate of #+4 percent. Use your knowledge of Bayes' Theorem and Conditional Probabilities to compute the following quantities based on the information given only in part 2: a. If 100,000 people take the blood test, how many people would you expect to test positive and actually have gestational diabetes? b. What is the probability of having the disease given that you test positive? c. If 100,000 people take the blood test, how many people would you expect to test negative despite actually having gestational diabetes? d. What is the probability of having the disease given that you tested negative? e. Comment on what you observe in the above computations. How does the prevalence of the disease affect whether the test can be trusted?Fill in the conditional probability table here, then answer the questions in each part below.i. Answer part (a) here.ii. Answer part (b) here.iii. Answer part (c) here.iv. Answer part (d) here.v. Comment on how prevalence of the disease affects your ability to trust the test. Discuss what factors would lead you to trust the blood test, or not trust the blood test.3. As we have seen in class, hypothesis testing, and confidence intervals are the most common inferential tools used in statistics. Imagine that you have been tasked with designing an experiment to determine reliably if a patient should be diagnosed with diabetes based on their blood test results. Create a short outline of your experiment, including all the following: a. A detailed discussion of your experimental design. Detailed experimental design should include the type of experiment, how you chose your sample size, what data is being collected, and how you would collect that data.b. How is randomization used in your sampling or assignment strategy? Remember to discuss how you would randomize for sampling and assignment, what type of randomization are you using?c. The type of inferential test utilized in your experiment. Include type of test used, number of tails, and a justification for this choice.d. A formal statement of the null and alternative hypothesis… read more
akch2002
akch2002
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When a mixture of 11.5 g of acetylene (C2H2) and 11.5 g of
When a mixture of 11.5 g of acetylene (C2H2) and 11.5 g of oxygen (O2) is ignited, the resultant combustion reaction produces CO2 and H2O.How many grams of CO2 are present after the reaction is comple… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
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When water is heated, it increases temperature lineary as long
When water is heated, it increases temperature lineary as long as steady heat is applied. But when it nears 100c, does it take more energy (does it not) to get to the steam point? Is that the Gibbs en… read more
Ray Atkinson
Ray Atkinson
Bachelor's Degree
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True or False A system of equations will never have an empty
True or False? A system of equations will never have an empty set as a solution. Explain your answer. False an example is x+2=7 and x+2y=-4 this does not have a solution. The system is inconsistant an… read more
Osbert12
Osbert12
Master's Degree
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Problem # 6 An animal trainer obtained the following sample
Problem # XXXXX: An animal trainer obtained the following sample data (Table A) in a study of reaction times of dogs (in seconds) to a specific stimulus. He then selected another group of dogs that we… read more
mcleo19
mcleo19
Assistant Professor
Doctoral Degree
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If H0 is in reality false and it is legitimate to use a directional
If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test? 1. type of alternative hypothesis has no effect on power 2. two-tailed a… read more
Greg
Greg
Master's Degree
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a 5.0% glucose solution has a specific gravity of 1.02. What
a 5.0% glucose solution has a specific gravity of 1.02. What is the mass of 500 mL of glucose solution.… read more
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