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Saltpeter is a compound made of potassium (K), nitrogen (N), and oxygen (O). Every 100.00 g of saltpeter contains 38.67 g potassium and 13.86 g nitrogen. What is the mass of oxygen contained in 316.0mg of saltpeter?
At year-end 2015, Wallace Landscaping’s total assets were $1.9 million and its accounts payable were $390,000. Sales, which in 2015 were $2.1 million, are expected to increase by 20% in 2016. How much new long-term debt financing will be needed in 20..
When hydrogen gas and nitrogen gas react to form ammonia, the enthalpy change is recorded as 45.92 kJ per mole of ammonia formed. How many moles of hydrogen gas and nitrogen gas are needed in order to produce 15.31kJ of energy
Has the inflation rate in the US increased or decreased in the past 5 years? Why? Have interest rates increased or decreased over that same period? Why? What can we likely expect of both in the near future?
Find the percent by mass of oxygen in heptanoic acid, C6H13CO2H.
When the dollar is worth more in relation to currencies of other countries, are you more likely to buy American made or foreign made jeans? Are US companies that manufacture jeans happier when the dollar is strong or when it is weak? What about an Am..
Kirk, Inc. 35,000 shares outstanding, Price per share: $37 Beg of year, $42 End of year. Picard Co. 26,000 shares outstanding, Price per share: $84 Beg of year, $91 End of year. Calculate the index return for the information using a value-weighted in..
Develop and write your own personal mission statement. Be clear about your passion, values, goals, and philosophies - What is your philosophy in terms of quality and image and what are your core competencies and competitive advantages?
What are the Best and Worst case NPVs?
Lasalle Industries is considering the purchase of a new machine that will cost $250,000, plus an additional $10,000 to ship and install. The new machine will have a 5-year useful life and will be depreciated to zero using the straight-line method. Wh..
Berkshire Hathaway Inc. (NYSE: BRK.A) would like to hedge its $5 million exotic insurance portfolio by using S&P 500 futures. Having heard about your excellent grades in the Derivatives class, Berkshire chairman Warren E. Buffett has hired you as a c..
Determine the pH of the solution after 1.00 mL of 2.00 M HCl is added to the 100.0 mL solution.
what minor product(s) might be expected (please draw the full reaction)? Give the detailed reaction mechanism leading to the final product (major).
Question- A salt, MY, crystallizes in CsCl structure, a body-centered cubic structure with a Y- anion at each cube corner and an M+ cation at the cube center. Assuming that the Y- anions touch each other and the M+ cation at the center, and the ra..
A gas cylinder contains 370 grams of O2 gas at 30atm and 25C. Explain what mass of O2 gas would excape if first the cylinder were heated to 75C as well as then the valve were held open until the gas pressure was 1atm, the temperature being maintai..
Problem- Consider a solution that is .010M Ba Ca Sodium sulfate is used to selectively precipitate out the Ba while leaving Ca in solutionKsp BaSO4 is 1.07x10^-10
Determine the ocean depth at which the water becomes supercritical. Assume the density of the water is that of fresh water at 20C.
State the chemical formula of salt and classify the bond as ionic, polar covalent or non covalent
Calculate the average translational kinetic energy (sometimes just called average kinetic energy)
The enthalpy of vaporization of ethanol is 38.56 kJ/mol. It has a boiling point of 351.44 K. What is the difference in entropy between ethanol's liquid and gaseous states at 351.44 K
A solution is prepared by dissolving 159 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Question- Consider the following reaction: 3Fe(s) + 4H2O(g) ? Fe3O4(s) + 4H2(g). a. What are the apparent oxidation states of the Fe and O in the product? b. The Fe in the product is really in 2 different oxidation states, what are they? c. At exa..
After completing th calculations below, sketch the PH curve for the titration of 30.0 mL of a 0.125M solution of a weak acid, HA(ka=1.3*10^-5) with 0.125 M KOH. indicate the pH at a) the beginning of the titration (o.o mL titrant) after the additi..
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