1.) Acetic acid is a weak monoprotic acid with Ka=1.8*10^-5. In an acid base titration, 100 mL of 0.100M acetic acid is titrated with 0.100M NaOH. What is the pH of the solution:
a.)Before any NaOH is added
b.)Before addition of 15.0mL of 0.100M NaOH
c.)At the half-equivalence point
d.)After addition of total of 65.0mL of 0.100M NaOH
e.)At equivalence point
f.)After addition of a total of 125.0mL of 0.100M NaOH
In: Chemistry
Suppose that a block can contain at most four data values and that all data values are integers. Using only B+ trees of degree 2, give examples of each of the following :
a. A B+ tree whose height changes from 2 to 3 when the value 42 is inserted. Show your structure before and after the insertion.
b. A B+ tree in which the deletion of the value 42 leads to a redistribution. Show your structure before and after the deletion
In: Computer Science
Write an entire program (with a main function and necessary header files included) that declares an 80 byte character buffer, prompts a user to enter a single word (no spaces) from the default input device (e.g. the keyboard), which is stored in the buffer, and then reverses the string while overwriting the buffer. Print the sting before and after the reversal. The program transcript should resemble the following output:
$ ./program.exe
enter string: nvidia
before: nvidia
after: aidivn
in C
In: Computer Science
The Affordable care act was signed into president Barack Obama in march 2010.
In: Nursing
what is the impact of Personal Data Protection Act 2010 on banking industry?
In: Finance
What are some stakeholders viewpoint on the Healthy, Hunger- Free Act of 2010?
In: Psychology
What are some examples of inflation and unemployment in the time period of 2000 to 2010?
In: Economics
Explain unemployment and inflation from 2000-2010 in relation to output and growth.
In: Economics
Happy Lion Manufacturing is considering issuing a new twenty-year debt issue that would pay an annual coupon payment of $90. Each bond in the issue would carry a $1,000 par value and would be expected to be sold for a market price equal to its par value.
Happy Lion’s CFO has pointed out that the firm will incur a flotation cost of 2% when initially issuing the bond issue. Remember, these flotation costs will be subtracted from the proceeds the firm will receive after issuing its new bonds. The firm’s marginal federal-plus-state tax rate is 45%.
To see the effect of flotation costs on Happy Lion’s after-tax cost of debt, calculate the before-tax and after-tax costs of the firm’s debt issue with and without its flotation costs, and insert the correct costs into the boxes. (Note: Round your answer to two decimal places.)
| Before-tax cost of debt without flotation cost: | % |
| After-tax cost of debt without flotation cost: | % |
| Before-tax cost of debt with flotation cost: | % |
| After-tax cost of debt with flotation cost: | % |
In: Finance
A study investigated the effect of nursing intervention on
maternal attachment in mothers separated from their newborn infants
for at least 24 hours after birth. The table below shows the
maternal attachment scores before and after the nursing
intervention for 10 mothers who were separated after delivery from
their newborn infants. Do the data provide evidence that the
intervention was effective in increasing maternal
attachment?
|
Patient ID |
Before Intervention |
After Intervention |
Difference (After-Before) |
|
1 |
23 |
25 |
|
|
2 |
10 |
23 |
|
|
3 |
9 |
19 |
|
|
4 |
6 |
17 |
|
|
5 |
13 |
23 |
|
|
6 |
12 |
23 |
|
|
7 |
12 |
23 |
|
|
8 |
7 |
17 |
|
|
9 |
8 |
19 |
|
|
10 |
10 |
12 |
Complete the data table by filling in the last column.
Select the appropriate non-parametric test for data analysis and
show the steps of hypothesis testing (α = 0.05).
Step 1: State hypotheses
Step 2: Select the appropriate test statistic
Step 3: Set up the decision rule
Step 4: Compute the test statistic
Step 5: Write your conclusion
In: Statistics and Probability