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Question- When 15.0mL of a 9.27E-4 M calcium bromide solution is combined with 12 mL of a 5.78e-4 potassium phosphate solution does a precipitate form?
1) For these conditions the Reaction Quotient, Q, is equal to
If possible just a brief explanation how you got the answer?
What is the coordination number of the central metal ion in K3[Co(H20)4Cl2] one, two, four or six
Given that the rate constant for the decomposition of X is 1.60 M^-1 min^-1, calculate the concentration of X after 11.0min.
A solution containing 82.0 g of ascorbic acid dissolved in 230 g of water has a density of 1.22 g/mL. Calculate the molarity of ascorbic acid in the solution.
An airbag in?ates in less than 50 msec by the reaction of NaN3 to produce Na and nitrogen gas at 25 ?C. NaN3 → Na + N2 The volume of the airbag is about 30 liters, and it is ?lled to a pressure of 1.4 atm.
Explain why one mole of oxygen molecules exerts the exact same pressure on the walls of a vessel as one mole of hydrogen molecule even though the mass of the oxygen molecule is 16 times greater than that of the hydrogen gas molecule.
Problem- Complete and balance the following oxidation-reduction reaction under acidic conditions. Make sure to write out all half-reactions and assign all important oxidation states.
Question- What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 25 A
If the concentration of fluoride in fluoridated drinking water is 1 x 10 ^-5 M and the calcium ion concentration in blood is 2.5 x 10^ -3 M, why is there no danger of CaF2 precipitating in the blood stream, after drinking the water?
What balances the equation of 3 atoms of carbon and 8 atoms of hydrogen combined with oxygen molecules and the end products of the equation are carbon dioxide and water
What is the pH of a solution prepared by mixing exactly 64.9 mL of 0.200 M HC2H3O2 with 24.7 mL of 0.400 M KOH. (Ka for acetic acid equals 1.8 x 10-5).
Calculate the maximum mass of pure ethanol that can be vaporized in 10 min from a beaker left in strong sunshine, assuming that the surface area of the ethanol to be 50 cm^2.
A mixture of KClO3 and KCl with a mass of 0.950 g was heated to produce O2. After heating, the mass of residue was 0.700 g. Assuming all the KClO3 decomposed to KCl and O2, calculate the mass percent KClO3 in the original mixture.
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