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A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
What is the mass, in milligrams, of mercury in 1.00 kg lake trout that just meets the Northern American standard of 0.50 ppm Hg?
4.00g of H2SO4 solution was diluted with H2O and added with excess of cacl2, and The washed and dried precipitate of BaSO4 weighted 4.08g. Calculate percent H2SO4 in the original acid solution.
The boling point of water in city a is 94 degrees celcius and in city b it is 97 degrees celcius. which is at the higher elevation.
Calculate the specific heat capacity of the metal when the final temperature of the mixture =38.7?C.? (Assume that there is no energy lost to the surroundings.)
Calculate the quantity of NH3 is produced upon reaction of 4.0 moles of water and 65.0 g of CaCN2.
At 25 0C the density of a 50 % (by mass) ethanol/water solution is 0.914 g/cc. Given that the partial molar volume of water in the solution is 17.4 cc/mol.
The bond distance and dipole moment calculated for the highly reactive gas phase OH molecule are 0.98Ao and 1.78D, respectively. Compute the effective charges on the O and H atoms of the OH molecule (in units of the electronic charges).
Solid soduim reacts violently with water producing heat hydrogen and sodium hydroxide. How many moeclues of hydrogen gas are formed when 48.7 g of sodium are added to water.
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent the bends, which is a condition caused by nitrogen bubbles forming in the bloodstream.
A 2.00 liter vessel is ?lled with NH3(g) to a pressure of 4.00 atm and the reaction N2(g) + 3 H2(g) ?? 2 NH3(g) comes to equilibrium at a ?xed temperature.
The volume of a sphere is . A sphere of metal has a radius of 1.56 cm. It has a mass of 147.9 grams. What is the density of this metal?
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