2NO(g) + Br2(g) 2NOBr(g)   A reaction mixture was found to contain 4.70×10-2 moles of NO(g), 4.02×10-2 moles of Br2(g) and 9.28×10-2 moles of NOBr(g), in a 1.00 Liter container. Indicate True (T) or False (F) for each of the following: Indicate True (T) or False (F) for each of the following:

1. In order to reach equilibrium NOBr(g) must be produced.

2. In order to reach equilibrium Kc must decrease.

3. In order to reach equilibrium NO must be produced.

4. Qc is less than Kc.

5. The reaction is at equilibrium. No further reaction will occur.

Suppose that a random sample of nine recently sold houses in a certain city has a mean sales price of

$280,000

, with a standard deviation of

$12,000

. Under the assumption that house prices are normally distributed, find a

90%

confidence interval for the mean sales price of all houses in this community. Then complete the table below.

Carry your intermediate computations to at least three decimal places. Round your answers to the nearest whole number. (If necessary, consult a list of formulas.)

PYTHON ?Write a superclass encapsulating a rectangle. A rectangle has two attributes representing the width and the height of the rectangle. It has methods returning the perimeter and the area of the rectangle. This class has a subclass, encapsulating a parallelepiped, or box. A parallelepiped has a rectangle as its base, and another attribute, its length; it has two methods that calculate and return its area and volume. You also need to include a client class (with the main method) to test these two classes.??

A company is evaluating two independent projects for capital investment purposes. If the company has only $85 million to invest, and its required return is 10 percent by how much the company’s value will increase?

All values are in millions.

A mixture of CH4(g) and C2H6(g) has a total pressure of 0.55 atm . Just enough O2(g) is added to the mixture to bring about its complete combustion to CO2(g) and H2O(g). The total pressure of the two product gases is found to be 2.3 atm . Assuming constant volume and temperature, find the mole fraction of CH4 in the mixture. Please type out answer step by step. Thank you!

LaTanya Corporation is planning to issue bonds with a face value of $101,000 and a coupon rate of 6 percent. The bonds mature in seven years. Interest is paid annually on December 31. All of the bonds will be sold on January 1 of this year. (FV of $1, PV of $1, FVA of $1, and PVA of $1) (Use the appropriate factor(s) from the tables provided. Round your final answer to whole dollars.) Required: Compute the issue (sale) price on January 1 of this year for each of the following independent cases: a. Case A: Market interest rate (annual): 6 percent. b. Case B: Market interest rate (annual): 4 percent c. Case C: Market interest rate (annual): 7 percent.

A normal population has a mean of 65 and a standard deviation of 13. You select a random sample of 16. Compute the probability that the sample mean is:

Compare and contrast (1) the procedural/functional approach (defining a function for each operation with the function body providing a case for each data variant) and (2) the object-oriented approach (defining a class for each data variant with the class definition providing a method for each operation). (250 own words)

10. Calculate q, w, ∆U, and ∆H when 50 g of O2(g) is heated at a constant pressure of 1 bar from 50 ºC to 200 ºC. Note: The constant volume heat capacity of O2 is 21.1 J mol-1 K-1.

1. Determine the pH of the buffer solution that is prepared by mixing 867 mL of 0.0403 M HEPES−H (C8H18N2O4S ) to 627 mL of 0.120 M HEPES (C8H17N2O4S− ). Assume the 5% approximation is valid. Report your answer to 2 decimal places.

2. Determine the pH of the HEPES−H/HEPES buffer solution after the addition of 21.2 mL of 2.89 M solution of hydrochloric acid to the existing buffer solution. Assume the 5% approximation is valid.

Assess the key ratios for profitability, liquidity, and solvency used by financial analysts to evaluate the financial performance of Target. How do you indicate one (1) ratio from each of the three (3) categories (profitability, liquidity, and solvency) that you believe to be most indicative of future performance. How do I use actual ratios for Target?

A pure gold ring and pure silver ring have a total mass of 15.4 g . The two rings are heated to 68.0 ∘C and dropped into a 13.0 mL of water at 21.5 ∘C. When equilibrium is reached, the temperature of the water is 23.7 ∘C.

Part A

What is the mass of gold ring? (Assume a density of 0.998 g/mL for water.)

Express your answer to two significant figures and include the appropriate units.

Part B

What is the mass of silver ring? (Assume a density of 0.998 g/mL for water.)

Express your answer to two significant figures and include the appropriate units.

An electronics company estimated the investment cost for equipment for producing replacement CCTV will be $800,000. The operating and maintenance cost is expected to be $500,000 per year with an annual revenues estimated at $650,000. Considering MARR of 15% per year, find: The simple payback period=??years The discounted payback period=.??years