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Calculate the mass percent of cadmium in ,CdS cadmium(II) sulfide.

Mass percent = %

If you wish to obtain 14.0 g of cadmium metal from cadmium(II) sulfide, what mass of CdS (in grams) must you use?

Mass = g

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Nornicotine, a poisonous compound found in tobacco leaves, is 72.9% C , 8.16% H , and 18.94% N . Its molar mass is 148 g/mol. What are the empirical and molecular formulas of nornicotine?

Empirical formula:

Molecular formula:

Which of the following samples has the largest number of ions?

1.0 g of CaBr2
1.0 g of SrS
1.0 g of MgBr2
1.0 g of BeSO4
1.0 g of BaCO3

Kc for the following reaction is 0.35. H2 (g) + I2 (g) 2 HI (g). If 1.0 mol of I2 and 1.0 mol of H2 are placed in a 1.0 L vessel, the equilibrium concentration of HI is :

The answer is 0.46 M, please explain how this value was reached. Thanks!

Identifyassumptions you need to make to prepare financial forecasts.

Discuss the risk of leasing hotel rooms to investors.

Two Brother's Moving Company purchased a group of new moving trucks for a total amount of $125,000. The vehicles are expected to last five years due to the heavy use and have a residual/scrap/salvage value of $10,000 at the end of that life. Usage of the vehicle is tracked in miles and the vehicles in total are expected to last 2,000,000 miles. During year one 750,000 miles were used, during year two 600,000 miles were used, during year three 500,000 miles were used, during year four no miles were used due to a temporary closing of the moving line of business, and during year five 150,000 miles were used. Using the depreciation template provided, determine the amount of depreciation expense for the third year under each of the following assumptions:

1. The company uses the straight-line method of depreciation.
2. The company uses the units-of-production method of depreciation.
3. The company uses the double-declining-balance method of depreciation.

1. Assuming straight line depreciation, prepare the journal entry for the third year.
2. Assume the company sold the vehicles at the end of the fourth year for $50,000. Prepare a journal entry for asset disposal in the fourth year.
3. Assume you are the chief accountant of this company. Determine how you will choose, based on best industry practices, the depreciation method for them to use.

Many exercise apps record both the time and the distance a user covers while walking, running, biking, or swimming. Some users of the apps want to know their average pace in minutes and seconds per mile, while others want to know their average speed in miles per hour. In many cases, we are interested in projected time over a specific distance. For example, if I run 6.3 miles in 53 minutes and 30 seconds, my average pace is 8 minutes and 29 seconds per mile, my average speed is 7.07 miles per hour and my projected time for 2.7 miles is 22 minutes and 55 seconds. Your job in Part 2 of this homework is to write a program that asks the user for the minutes, seconds, miles run, and miles to target from an exercise event and outputs both the average pace and the average speed. You can expect minutes and seconds to both be integers, but miles will be a float. All minutes and seconds must be maintained as integers so please use integer division and modulo operations. Note that if you have a float value then the function int gives you the integer value.

For example:

>>> x = 29.52

>>> y = int(x)

>>> print(y) 29

The output for the speed will be a float and should be printed to 2 decimal places. Notice also that our solution generates a blank line before the output of calculations.

Which of the solutions below is hyperosmotic, isoosmotic, and hypoosmotic relative to the Red Blood Cells (RBCs) BEFORE and AFTER blood is added?

0.15 M Urea

Before:

After:

What is the osmolarity before and after blood is added?

0.3 M NaCl + 0.3 M Urea

A project under evaluation has a first cost of $35,000. The firm’s MARR is 15%. Assume the probability distributions for annual benefit and life are unrelated and statistically independent. Calculate the expected value for the Present Worth.

Consider the following Markov chain:

1. What is the probability that the first passage time from 2 to 1 is 3?
2. What is the expected first passage time from 2 to 1?
3. What is the expected first passage time from 2 to 2 (recurrence time for 2)? What is the relation between this expectation and the steady-state probability of being at state 2?

X_n is a Markov Chain with state-space E = {0, 1, 2}, and transition matrix

0.4 0.2 0.4

P = 0.6 0.3 0.1

0.5 0.3 0.2

And initial probability vector a = [0.2, 0.3, 0.5]

For the Markov Chain with state-space, initial vector, and transition matrix discuss how we would calculate the follow; explain in words how to calculate the question below.

a) P(X₁ = 0, X₂ = 0, X₃ = 1, X₄ = 2|X₀ = 2)

b) P(X₂ = 2, X₄ = 0, X₅ = 1

pH of the Buffer after the addition of strong base

Original buffer solution=
50.0 mL of 1.0 M CH3COOH
50.0 mL of 1.0 M NaCH3COO

Take 50.0 mL of this buffer solution and add 2.0 mL of 1.0 M NaOH

Calculate the expected pH of this solution.