A- Calculate the pH at equilibrium point in the titration of 50mL of 0.1M HC2H3O2 with 0.16M NaoH. Ka=1.8^-5

B--Calculate the pH if 35mL of 0.025M HCl is added to 30mL of 0.030M NH3. Kb=1.8^-5

PLEASE MAKE UP ANY 3 NONLINEAR PROGRAMMING PROBLEMs BY YOUR OWN AND SOLVE IT in either EXCEL, matlab or lingo.

1. One of the symptoms of COVID-19 is a loss of smell or taste.
Identify the type and location of receptors that are likely to be affected by the virus to cause a loss in smell/taste. Explain why people have trouble tasting foods when they are congested due to a cold or allergies.

2. How/why can smells evoke memories so strongly? Identify 1-2 smells that are your most and least favorite and explain why.

An exam is given to select the top 15% of incoming students for a special honors program. The cutscore for the exam is 28 points. The mean of the test scores is 24 points. What is the standard deviation of the test scores?

Sign up for an API Key to consume OpenWeathermap.org and using their Weather API, using Bootstrap, axios, jQuery create an application that returns weather information for a given Zip Code (see https://openweathermap.org/current#zip), I.e. a form with a zip code input and button that when i click the button it returns the weather information on the DOM.

Even extra points if you handle the loading state so that the user is aware something is loading.

• Submission should be through github, you should “submit” a link to the github repository
• The repository should be a single HTML page, a single JavaScript file and optional CSS file(s)
• As always, HTML, JavaScript and CSS must be valid.
• As always, JavaScript must not produce any errors.

You can use https://getbootstrap.com/docs/4.4/getting-started/introduction/#starter-template as a starting point

In 2018 the United States and China entered into a trade dispute that led both countries to impose tariffs on each other’s goods. Economists concluded that the tariffs contributed to slower growth in real GDP for both countries, though the effects were greater in China. Using aggregate demand and supply analysis explain and graph how a trade surplus can lead to a slowing real GDP in both countries.

1. . Use practical examples to distinguish between a cross-sectional survey and a

longitudinal survey.

9.T/F

a. A tax increase will have less of a direct impact on income, employment, and output than will an equivalent increase in government spending.

b. Currency fluctuations affect aggregate supply and demand.

c. In June 2013, the Bank of Japan announced that it was continuing its easy money policy through open market operations. The Bank must have decided to continue to sell securities.

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 53 cm below the ceiling. If a 105 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. What is the pan's distance from the ceiling when the spring reaches its maximum length?

Code Using Arrays in Java

There is a new ruling for the only elevator located at Block B. Students who need to ride the elevator, must line up in a queue. The rated load in pounds for the elevator is based on the inside net platform areas. The maximum load for the elevator is 500 pound.

Write a program to read the students weight (in pound) in the line and calculate the number of students that are allowed to enter the elevator before it makes a loud noise.

Input

The first line of input is T (1 ≤ T ≤ 100) which is the number of test case. This is followed by T lines of input. Each line starts with X (X ≤ 100) which is the number of students who want to ride the elevator. This is then followed by a list of X data which is the students’ weight in the line.

Output

For each test case, the output contains a line in the format "Case #x: y", where x is the case number (starting from 1) and y indicates the number of students in the line that are allowed to ride the elevator.

Sample Input

3
9 45 25 50 46 10 55 50 83 68
5 66 155 93 101 90 
8 64 70 50 45 85 74 110 95 

Sample Output

Case #1: 9
Case #2: 4
Case #3: 7

In a USA Today article about an experimental vaccine for children the data found in the table below was presented. Using the technique of Chi Square use a .05 significance level to test if there is an association between treatment type and outcome of flu. Does the vaccine appear to be effective? (Is there an association?)

Developed flu?

yes no

vaccine 14 656

placebo 95 137

Describe in 2-3 sentences about fundalmental analysis and techniqual analysis of forecasting

Do out-of-state motorists violate the speed limit more frequently than in-state motorists? This vital question was addressed by the highway patrol in a large eastern state. A random sample of the speeds of 2,500 selected cars was categorized according to whether the car was registered in the state or in some other state and whether or not the car was violating the speed limit. The data follow.

In state speeding cars: 521

Out of state speeding cars: 328

In state not speeding cars: 1141

Out of state not speeding cars: 510

a.) Do these data provide enough evidence to support the highway patrol's claim at the 5% significance level? Your conclusion must be in terms of the P-Value. Show all necessary work.

b). What type of error is possible and describe this error in terms of the problem?

c). Estimate the difference in the actual percentage of In State and Out of State speed limit violators using a 95% confidence interval. Show all necessary work. Using this interval estimation, is there sufficient evidence to support the highway patrol's claim? Explain Carefully.

d). Carefully interpret the confidence interval estimation.

Use non-parametrics/Mann-Whitney test if the problem calls for it- Does it?