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Joseph Priestley discovered oxygen in the eighteenth century by using heat to decompose mercury(II) oxide:2 HgO(s) + heat --> 2 Hg(s) + O2(g)What mass of Hg will form along with 0.100 kg of oxygen gas?
Important information about Organic molecules, What is meant by a molecules "handedness"? Can all organic molecules exhibit this property? What makes such a property possible?
Isothermal Pressure Increase Prediction, Estimate the pressure increase needed to decrease isothermally by 1% the volume of
Persistent Organic Pollutanants- Bioaccumulation Measurements, Compare the worst case scenario, i.e. the strongest tendency to bioaccumulation for each toxin.
Calculate the Î"S for a gas in a closed system that is an ideal monatomic gas initially at P= 5 atm, V=5L, and T = 310 K which expands to V= 10 L and its temperature is increased to 390 K
A .117 gram sample of a metal reacts with hydrpchloric acid to produce 36.3mL od dry hydrogen gas. what is the equivalent weight of this metal.
What weight of Pb(NO2)2 wil have to be dissolved in one liter of water to prepare a 100ppm Pb2+ solution.
Dehydration upon heating with concentrated sulphuric acid without carbocation rearrangement?
Calculate the pH of the solution that results when 100.0 mL of 0.15 M NaOH is added to 50.0 mL of 0.25 M HNO3
What volume will 500 mL of gas at 20°C and a pressure of 420 mm Hg occupy if the temperature is reduced to -80°C and the pressure is increased to 650 mm Hg?
What is the percentage yield of SO3 if 22.3 g SO3 are obtained from the reaction of 25.0 g SO2 with an excess of O2.
Calculate the molarity of a solution of glycerol made by dissolving 53.000 mL glycerol at 15 'C in enough water to make 270.00 mL of solution.
A container of water is heated from 23.5C to 85.0C. This process requires 21,900 Joules of heat. Calculate the mass of the water. (c=4.184 J/g-C)
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