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Compute the number of electrons in a flake of pure gold valued at $0.51. Assume that the price of gold is $1273.0/troy oz. (1 troy oz = 31.1 g)
Assume the first equivalence pont is around 13.30 ml,for an experiment. while carrying out the ph meter titration approximately at which volume will you
calculations of the sulfuric acid molarity if your average result from the titration of three 0.350 g samples is 15.72 mL. Please explain your answer in detail (words and calculations).
A 0.456 gram sample of an unknown monoprotic acid (lets call it HZ) was dissolved in some water . Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
HNO3 by mass and has a density of 1.047 g/mL. What is the pH?
what is the maximum mass of an object traveling at 241 m·s-1 for which the de Broglie wavelength is observable?
if equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield?
Calculate the final temperature of 32 mL of ethanol initially at 11 degrees C upon absorption of 562 J of heat.
2.9 mol Fe(OH)3 and 7.7 mol H2SO4 react according to the equation 2 Fe(OH)3 + 3H2SO4 ->Fe2(SO4)3 + 6H2O. If the limiting reactant is Fe(OH)3, calculate the amount of Fe2(SO4)3 formed.
Why are monochromators (prism or grating monochromators) used in scanning instruments as opposed to absorption filters for
Two charged dust particles exert a force of 4.7 10-2 N on each other. What will be the force if they are moved so they are only one fifth as far apart?
which indicator is more accurate phenopthalein or methyl orange? why
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