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A titration required 16.86 mL of 0.1672 M of NaOH - how many moles are in the volume - need the steps
There are two ways of utilizing hydrogen as fuel in automobiles - as the replacement of gasoline in internal combustion engine or in a fuel cell. Can you explain why a fuel cell is more efficient using the Second Law of Thermodynamics
ideal gas originally at STP expands irreversibly and isothermally from point A to point B in the Carnot cycle diagram. It then is expanded reversibly and adiabatically from B to C.
From the number if moles of ammonia calculated in part (a - below) determine the number of micrograms of mitrogen per gram of dry soil. Assum you have 2.753 f of soil and all of the ammonia diffused from the soil.
what is the pH of the hydroflouric acid solution prior to adding sodium fluoride? (b) how many grams of sodium fluoride should be added to prepare the buffer solution? Neglect the small volume change that occurs when the sodium fluoride is added.
Determine the molarity of Fe+3 ions and SO4-2 ions in a solution prepared by dissolving 48.05g of Fe2(SO4)3 in enough water to make 800.0mL of solution.
the oxygen gas emitted by an aquatic plant was collected over water at a temerature of 293 k and a total pressure of 755.2 mmhg.
What you need to know about Problems, The Ksp of La(IO3)3 is 1.0×10-11. Using activities, what is the molar solubility of La(IO3)3 in a 0.050 M solution of NaNO3?
Ammonia gas reacts with hydrogen chloride according to the reaction given below, which must also be balanced. if 7.00g of NH3 is reacted with 12.0g of HCl in a 1.00L container at 25C
Zinc sulfide reacts with nitric acid to give zinc sulfate and nitric oxide. Calculate the mass of zinc required to react with 110 mL of 0.15 M nitric acid.
Calculate the pH of a solution that is 0.25M pyridine, C5H5N and 0.75M in pyridinium bromide, C5NHBr. (Kb for C5H5N= 1.7 * 10^-9)
Determine the maximum number of electrons that could be emitted from metal by a burst of light with a total energy (E)of 9.86× 10^(-7) Joules?
A total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 127g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 celcius .
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