What mass (in grams) of nitrogen must be added to 8.34 g of argon at 24.17oC, and in a 126.1 L contain for a final pressure of 895 mmHg?

A qualifying exam for a graduate school program has a math section and a verbal section. Students receive a score of 1, 2, or 3 on each section. Define X as a student’s score on the math section and Y as a student’s score on the verbal section. Test scores vary according to the following bivariate probability distribution.

μXX =   , and μYY =   

σXX =   , and σYY =   

The covariance of X and Y is ________ . The coefficient of correlation is _________ . The variables X and Y_______ independent.

The expected value of X + Y is_______ , and the variance of X + Y is ________________ .

To be accepted to a particular graduate school program, a student must have a combined score of 4 on the qualifying exam.

What is the probability that a randomly selected exam taker qualifies for the program?

0.46

0.33

0.47

0.45

Chebysheff’s Theorem states that the proportion of observations in any population that lie within k standard deviations of the mean is at least 1 – 1 / k² (for k > 1).

According to Chebysheff’s Theorem, there is at least a 0.75 probability that a randomly selected exam taker has a combined score between_______ and_______ .

In fewer than 500 words, argue that beauty is an objective quality,and not a subjective taste.5(Hint: first, define beauty in a reasonable manner. Then,destroy the subjective argument, by showing that it is logically empty based on yourdefinition.)

True or false for each statement :

1)Without friction or work by an external force, the sum of the potential and kinetic energies of a body is constant.

2)Work is done when the form of energy changes.

3)Work can be done in the absence of motion.

4)Less power is required while slowly lifting a box than while lifting it up quickly.

5)Energy conservation law for a projectile (no friction): Potential energy decrease equals the kinetic energy increase.

6)A source of energy is required to do work.

What is the mole fraction of O2 in a mixture of 15.1 g of O2, 8.19 g of N2, and 2.47 g of H2?

What is the mole fraction of N2 in a mixture of 15.1 g of O2, 8.19 g of N2, and 2.47 g of H2?

What is the mole fraction of H2 in a mixture of 15.1 g of O2, 8.19 g of N2, and 2.47 g of H2?

What is the partial pressure in atm of O2 of this mixture if it is held in a 15.20 −L vessel at 15 ∘C?

I am writing a thesis. How should I find the handbook (or professional sources) for the causes and treatments of brain death?

Is it true that there is no unified treatment for avoiding brain death (I mean there is no unified treatment for brain tumours and so on)? Different hospitals have different methods?

Book Review: How America Lost Its Secrets?

Which of the following would result as a buffer if any when 1 L of each is mixed together:

a) 0.1 M KOH and 0.2 NH₄Cl

b) 0.2 M HNO₃ and 0.6 M NaNO₃

Please Explain!

NOTE: Write your program in 8086 language. Preferably, I'd like you to use emu8086, but you can use any 8086 program and write and test them.

Program: Write a program to do the following.

(a) Scroll a window from row 5, column 10 to row 20, column 70, with a reverse video attribute.

(b) Locate the cursor at row 10, column 20.

(c) Display a line of text, such as,

THIS TEXT IS IN THE WINDOW

(d) After the line of text is displayed, wait for a key to be pressed.

(e) Scroll a window from row 7, column 12 to row 18, column 68, with a normal attribute.

(f) Write a character A with a blinking attribute in the middle of the window.

(g) Wait for a key stroke, and then clear entire screen with a normal attribute.

The average human body contains 5.70 L of blood with a Fe2+ concentration of 3.20×10−5 M . If a person ingests 7.00 mL of 24.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?

Results table

• Graph your standard curve by plotting protein content in the abscissa and absorbance in the ordinate.
• Calculate the protein content of your samples.

The formation constant* of [M(CN)2]– is 5.30 × 1018, where M is a generic metal. A 0.150-mole quantity of M(NO3) is added to a liter of 0.610 M NaCN solution. What is the concentration of M ions at equilibrium?

Nowadays, many firms have become or more striving to become learning organizations.Discuss why firms recognize this practice is important for continuous performance-related training and development programs.

Provide detailed explanation.