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Consider the following chemical reaction 2H2O(l) >2H2(g) + O2 (g)what mass of H2O is required to form 1.2L of O2 at a temperature of 295 K and a pressure of 0.967 atm?
Zinc is used to make galvanized iron pipes. These pipes are protected from the rust reactions that would normally occur. Which statement best explains why zinc is used
A compound with the molecular weight of 391.98 was determined to be 3.1% Hydrogen, 31.5% Phosphorous, and 65.4% Oxygen. Determine the empirical formula and the molecular formula for the compound.
Explain what change would you expect on the rate of the sn2 reaction of 1-iodo-2-methylbutane with cyanide ion if the nucleophile concentration is halved and the alkyl halide concentration is halved
Compute the molarity of a solution made by adding 31.0mL of concentrated perchloric acid (70.5 % by mass, density 1.67 g/mL) to some water in a volumetric flask, after that adding water to the mark to make exactly 250mL of solution.
a certain organic compound was burned producing 1.481 g of co2 and 0.303 g of h2o. the mass of the original sample was
A 12.4 mL sample of liquid butane (density = 0.573 g/mL is evaporated in an otherwise empty container at a temperature of 30.3 C. The pressure in the container following evaporation is 885 torr. What is the volume of the container
which is the lowest at 25 C a) deltaG f for H2O(s) b) deltaG f for H2O(l) c) deltaG f for H2O(g) d) 1/2 deltaG f for O2(g) plus deltaG f for H2O(g)
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How much of the water (in mL) contains 150 mg of Pb. The density of the solution is 1.0 g/mL.
List all of the intermolecular forces in each of the following substances: CH3NH2, CO2, SO2, NO2
Problem- The combination of sodium chlorite and acetic acid forms hypochlorous acid (HOCl). Draw the arrow pushing mechanism of your reaction, using HOCl as reagent.
What is the heat capacity of mercury if it requires 167 J to change the temperatures of 15.0g mercury from 25.0 Celsius to 33.0 Celsius
What are the relative populations of these levels at the boiling if the degeneracy level is 2j+ 1? Is the ground state most highly populated level?
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