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The simplest formula of a substance is found to be CH2O, and its approximate molar mass is found by experiment to be 93 g•mol-1. What is its exact molar mass?
If an officer is not actually paid his salary but the salary is shown as accrued for 2010, for a C Corp, is the total accrued amount for that officer included on Schedule E or only what the officer is actually paid in 2010?
Describe how operating cash flows can serve as one indicator of earnings quality.
Now FASB required that all employee stock options should be expensed on income statement. On Jan. 2005, AA company granted total $100,000 (fair value) of stock options to the employee.
Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make Ammonia (NH3) and Lithium hydroxide.
The solution to Chemistry, Are there differences between having electron-donating groups and electron-withdrawing groups
In the acid-base reaction between Sr(OH)2 and HNO3, 0.75 L of 0.85 M Sr(NO3)2 is formed upon the reaction of 0.515 L of HNO3 solution and excess Sr(OH)2.
Prepare an amortization schedule for the four-year term of the lease, the journal entry for the first lease payment on December 31, 2011, and the journal entry for the third lease payment on December 31, 2013.
estimate the mean ionic activity coefficient for NaCl in a solution that is 0.020 mol/kg NaCl(aq) and 0.035 mol/kg Ca(NO3)2 (aq)
The ACT is also distributed with meanof 21 and standard deviation of 4.7. Rachel wants to be in the 98th percentile on each test. What scores must she recieve on each exam?
Calculate the molar mass of sucrose. How many mol sucrose did you start with in this lab?
how many kilojoules of energy are needed to convert 100 g ice at 10.0C to water at 20.0C? (the specific heat of ice at 10C is 2.01)
Identify the oxidation-reduction reactions among the following: 1. Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)
What mass of sodium chloride, NaCl, is needed to make 389. g of a 3.89%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
What is the composition in mole fractions of a solution of benzene and toluene that has a vapor pressure of 35 torr at 20 °C? Assume the mixture forms an ideal solution.
Determine ΔG for this reaction When A is full into a cylinder at a pressure of 9.89 atm and the system is permitted to come to equilibrium, the final pressure was 15.94 atm.? Express your answer in units of kJ/mol
What is the cell potential at each of the given volumes as a. 5.00 mL,b. 12.00 mL,c. V equilvalence pointd. 48.00 mL of added Ce4+?
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.800 miles.
When you standardized the Sodium thiosulfate, what molarity of Na2S2O3 did you observe for each of your 3 trials.
A voltaic cell is based on the reaction Sn + I2 = Sn2+ + 2I-.
A 270- flask contains pure helium at a pressure of 755 . A second flask with a volume of 485 contains pure argon at a pressure of 727 torr.
If the pressure exerted by ozone, O3, 3.0x10-3 atm and the temperature is 247 K , how many ozone molecules are in a liter.
Two gas tanks are linked by a connecting tube of negligible volume with a valve. One contains 15 L of nitrogen at 7.2 atm of pressure. The other contains 8.3 L of helium at 4.1 atm of pressure.
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