Please compare two synthetic approaches toward carboxylic acids. A. Grignard reagent approach; B. Nitrile approach. What are the advantages and disadvantages of each method?Please compare two synthetic approaches toward carboxylic acids.
In: Chemistry
suppose 25.0 ml of .20 M acetic acids is being titrated with 0.200 M NaOH. what is pH after 10.0 mL NaOH has been added (ka for acetic acids = 1.8 x10^-5)
In: Chemistry
You are growing a culture of bacteria with cells that can alter the composition of fatty acids in their membranes. Explain why, and in what way, a change in temperature alters the ratio of saturated to unsaturated fatty acids in the cell membranes of your culture.
In: Biology
Use the following information to compute the confidence interval
for the population proportion.
a. n = 715 and x = 329, with 95%
confidence
b. n = 284 and p̂ = .71, with 90%
confidence
c. n = 1250 and p̂ = .48, with 95%
confidence
d. n = 457 and x = 270, with 98%
confidence
Appendix A Statistical Tables
(Round your answers to 4 decimal
places.)
a.
≤ p ≤
b.
≤ p ≤
c.
≤ p ≤
d.
≤ p ≤
In: Statistics and Probability
Find the present value of $4,543 discounted for 6 years at 13%. Assume quarterly compounding. (round to the nearest whole dollar)
Consider the following cash flows and calculate the Present Value of this cash flow stream if the interest rate is 6%. Please include two decimals in your answer and a negative if appropriate
Year 0: $-285
Year 1: $133
Year 2: $0
Year 3: $0
Year 4: $457
In: Finance
In: Biology
1.Under what circumstances might the concentrations of enzyme, substrate, and inhibitors vary in a cell?
2.What other factors influence enzyme activity in vivo? How important are these factors in regulating metabolic pathways?
In: Biology
How do the four levels of protein structure affect the shape of enzymes and why is this important for enzyme function? Explain the "lock and key" model of enzyme function using the terms substrate, active site, and product.
In: Biology
Define protein-primed DNA replication.
Explain the general process of reverse transcription and integration. Explain the role of tRNA in retrovirus genome replication, the enzymatic activities of the reverse transcriptase enzyme, and the function of the integrase enzyme.
In: Biology
Catecholase is an enzyme found in potatoes. This enzyme works to turn the catechol in the potato to benzoquinone. Benzoquinone is a reddish brown color. Based on this information, read the following prompt and answer the question. A freshly cut potato turns brown when left standing. Why do mashed potatoes stay white? (Choose all that apply)
The catecholase in the fresh potato turned catechol into benzoquinone
The catecholase in the fresh potato became denatured and as a result was not able to turn catechol into benzoquinone
The catecholase in the mashed potato became denatured and as a result was not able to turn catechol into benzoquinone
The catecholase in the mashed potato turned catechol into benzoquinone
The catecholase in the fresh potato was able to lower the activation energy of the chemical reaction
The catecholase in the mashed potato was able to lower the activation energy of the chemical reaction
In: Biology