Data Table 1. Adding 0.1 M HCl from D1 into A1.

Data Table 2. Adding 0.1 M NaOH from D6 into A6.

Data Table 3. Adding 6 M HCl from Pipet into B1.

Data Table 4. Adding 6 M NaOH from Pipet into B6.

Data Table 5. Adding 0.1 M HCl from D1 into C1.

Data Table 6. Adding 0.1 M NaOH from D6 into C6.

1. Describe the buffer capacity of the acetic acid buffer solution in relation to the addition of both concentrated and dilute acids and bases. Reference the results in Data Tables 1-4 in your answer.

2. Did distilled water act as a buffer in this experiment? Use your data to support your answer.

The following information is available for four securities:

Stock E(r) Std. Dev. p 1 p 2 p 3 p 4   

1 14% 30% 1.0 0.6 0.4 -0.2

2 10% 25% 1.0 .20 0.5

3 15% 34% 1 0.1

4 9% 22% 1

(a) [30 points] Calculate the expected returns and standard deviations of returns of the following two portfolios: P1 : {31%, 5%, 19%, 45%} P2 : {4%, 35%, 2%, 59%}

(b) [10 points] Which portfolio will be preferred by risk averse investors? Why?

The flat circular plate has the shape of the region ? 2 + ? 2 ≤ 4. The plate, including the boundary ? 2 + ? 2 = 4, is heated so that the temperature at the point (x, y) is: ?(?, ?) = ? 2 + ? 2 − 2? + 1. Find the temperatures at the hottest and coldest points on the plate.

1)

What's the contents of array vals after the following code is executed?

int[] vals = {6, 1, 4, 5, 1};
int size = vals.length;
for(int i = 0; i < size; i++)
  vals[i] = vals[i] * i;

q) [ 6, 1, 4, 5, 1 ]

b)[ 0, 1, 2, 3, 4]

c)[0, 1, 8, 15, 4]

d)[6, 2, 12, 20, 5]

2)

Consider function foo defined below:

static int[] foo(int vals[]) {
   int result[] = new int[vals.length - 1];
   for(int i = 0; i < vals.length - 1; i++)
     result[i] = Math.abs(vals[i] - vals[i+1]);
   return result;
}

If nums is a static array with the content [6, 1, 4, 5, 1], what's the result of calling foo(nums)?

a) nothing gets returned from function foo

b) [5, 3, 1, 4]

c) [5, -3, -1, 4]

d) [-5, 3, 1, -4]

3)

The method has below returns true/false depending whether target is found in vals. What's the correct way to complete the following code so that the method has does what it is intended to do?

static boolean has(int vals[], int target) {
    for(int i = 0; i < vals.length; i++)
        if (vals[i] == __________)
            return true;
    return __________;
}

a)target and false

b) i and false

c) target and true

d) i and true

Given a sorted array with lot of duplicates, write a problem to search specific element m. If it’s included in the A, return its minimal index, otherwise return -1. For example A = {0, 0, 1, 1, 1, 2, 3, 3, 4, 4, 4, 4, 4}, if we search 4, you program should return 8. You are only allowed to use binary search. Linear search is not allowed here.

1. Consider the following reaction: 2 ClO2 (aq) + 2 I- (aq)  2 ClO2 - (aq) + I2 (aq) The order with respect to ClO2 was determined by starting with a large excess of I- , so that it its concentration was effectively constant. This simplifies the rate law to: rate = k’[ClO2] m where k’ = k[I- ] n . Determine the order with respect to ClO2 and the rate constant k’ by plotting the following data assuming first-order, then second-order kinetics. You need not attach the plots for these two treatments, but you should report the linear regression equations and correlation coefficient for each. (Sample Exercise 13.4) (7 pts)

Time (s) [ClO2] (moles/liter) 0.00 0.000477, 1.00 0.000431 ,2.00 0.000391, 3.00 0.000353 ,5.00 0.000289, 10.00 0.000176 ,30.00 0.000024, 50.00 0.0000032

2. The reaction, 2 NOCl (g)  2 NO (g) + Cl2 (g), has rate-constant values of 9.3 x 10-6 s -1 at 350 K and 6.9 x 10-4 s -1 at 400 K. Calculate the activation energy for the reaction and the rate constant at 425 K (

1. Consider the region bounded by the graph of y^2 = r^2 −x^2

(a) When this region is rotated about the x-axis a sphere of radius r is generated. Use integration to find its volume V (b) Use integration to find the surface area of such a sphere

2. Find the arc length of the curve y = 1 3 x 3/2 on [0, 60] (

3. Consider the graph of y = x^3 . Compute the surface area of revolution about the x-axis over the interval [0, 2]

4. A spring whose equilibrium length of 15in. exerts a force of 50 lbs when it is stretched to 20in. Find the work required to stretch the spring from 22in. to 24in.

Budgets

1. What is “Incremental Budget”?

2. List and explain 2 pros and 2 cons of Incremental Budget?                    

According to the International Institute of Internal Auditors Glossary (2013),

Control is define as?   

3. The Internal Control Framework is made up of 5 interrelated elements.

4. List any 4 of these elements?

[2-1]     What are some of the major advantages and disadvantages of being a first mover?

[2-2]       What are five of the major differences between the early years of e-commerce and today’s e-commerce?

[2-3]       Why is a multidisciplinary approach necessary if one hopes to understand

e-commerce?

[2-4]      What are some of the privacy issues that Facebook has created?

[2-5]         Describe the five primary revenue models used by e-commerce firms.

[2-6] Would you say that Amazon and eBay are direct or indirect competitors? (You may have to visit the websites or apps to answer.)

Project

[P1-1]   Examine the experience of shopping online versus shopping in a traditional environment. Imagine that you have decided to purchase a digital camera (or any other item of your choosing). First, shop for the camera in a traditional manner. Describe how you would do so (for example, how you would gather the necessary information you would need to choose a particular item, what stores you would visit, how long it would take, prices, etc.). Next, shop for the item on the Web or via a mobile app. Compare and contrast your experiences. What were the advantages and disadvantages of each? Which did you prefer and why?