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Suppose that 0.330 mol of methane, CH4(g), is reacted with 0.480 of fluorine, 0.480 mol, F2(g) forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released?
What is the volume of a 1.25 M NaOH solution required to neutralize a mixture of 50.0 mL vinegar (5.0% m/V acetic acid) and 50.0 mL concentrated acetic acid (95.0% m/V) solution? Acetic Acid: 60.05 g/mol
Draw a Kekule diagram for benzene - why is this representation of benzene not considered to be as good as drawing a hexagon with a circle in the centre? What does the circle represent?
A piece of gold foil has a volume of 0.645cm^3. If the piece of gold measure 10.0 cm by 12.5cm, what is the thickness of the foil
elemental boron as a gas is produced in one industrial process by heating diboron trioxide with magnesium metal also
Dental amalgam, a solid solution of silver and tin in mercury, is used for filling tooth cavities. Two of the reduction half-reactions that the filling can undergo are
To calculate the concentration of protein is it 10/990 or 10/1000? And does the original concentration of solution even matter when calculating the solution concentration?
in the reaction below 5 grams of propane reacts with 0.02 moles of oxygen gas.ch3ch2ch3 g o2 g --gt co2 g h2o ga
What is the age of a rock whose Argon 40 / Potassium 40 ratio is 1.55. The half life of Potassium 40 is 1.28 x 10^9 years.
based on mole ratios. a sample is 59.53 c 5.38h 10.68n and 24.40o what is its empirical formula. a 0.2000 gram sample
Calculate the volume of 6.00 M NaOH that can be added to a buffer composed of 0.160 mol CH3CHOHCO2H and 0.179 mol CH3CHOHCO2- in 500 mL water before the buffer capacity is exceeded.
For each solution, determine the number of moles of HAn and of An- ion at equilibrium. For each solution, caluate the HAn and An- ion molar equilibrium concentrations. Determine the reciprocal of the An- ion concentration for each solution.
A certain first order reaction is 47% complete in 45 seconds. What are the values of the rate constant and the half-life for process
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