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Consider the reaction, 4 NH3 + 5 O2 => 4 NO + 6 H2O, How many molecules of NH3 will make 76.1 moles of NO?
Consider the reaction, 4 NH3 + 5 O2 => 4 NO + 6 H2O, How many molecules of NO will be made with 89.5 moles of H2O?
An enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon.
When 28.0 ml of 0.500 M H2SO4 is added to 28.0 ml of 1.00 M KOH in a coffee-cup calorimeter at 23.50 degrees Celsius, the temperature rises to 30.17 degrees Celsius. Calculate the delta H of this reaction.
If the mass of water surrounding the calorimeter was exactly 1000 g and the heat capacity of the bomb calorimeter was 1.75 kJ/°C, calculate the molar heat of combustion of liquid methanol .
If a 220mg piece of gold (density =19.32 ) is hammered into a sheet measuring 2.11.0 , what is the average thickness of the sheet in meters.
If the absorbance of one of your samples is off scale, what is the most likely problem?
If 120 of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m. ?
Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution:a solution that is 0.165M in HC 2 H 3 O 2 and 0.120M in KC 2 H 3 O 2.
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?
How many possible isomers could exist for diacetylferrocene? Explain. Calculate the volume of 3M aqueous sodium hydroxide needed to neutralize the acetic and phosphoric acids in the synthesis of acetylferrocene?
the growth rate drops 6 orders of magnitude and effectively reduces the crystallization rate to zero. Calculate the self-diffusion of this alloy system.
Explain, in detail, how you would prepare this solution so a labmate could prepare it from your instructions
Calculate the mass percent (m/m) for the solute in each of the following solutions: Express the answer using 2 sig figures.
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