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Problem- A volume of 203 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and the temperature is 25°C. Calculate the atomic mass of the metal. A 0.194 gram sample of a metal, M, reacts completely with sulfuric acid according to: M + H2SO4 --> MSO4 + H2
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Calculate the osmotic pressure at 20C of the solution 0.050M C12H22O11; assume complete dissociation for an ionic solutes.
calculate the heat produced by combustion per liter of methanol. Methanol has a density of 0.791g/ml. (d) calculate the mass of CO2 produced per kJ of heat emitted.
What are the n and l quantum numbers of the electron removed when Bi is ionized to Bi+ and would you expect element 115 to have ionization energy greater than, equal to, or less than that of bismuth? Explain.
The sensitivity of a spectrophotometer allows detection of 1 percent of one colored form of an indicator for example HIn in the presence of 99 percent of the other colored form In-. Based on this fact, over what pH range relative to its pK can an ..
Why is gravity filtration rather than suction filtration used to remove suspended impurities and charcoal from a hot solution. Why is a fluted filter paper used in gravity filtration
Calculate the temperature in Kelvins of 10.2 grams of CO2, an Ideal Gas, trapped in a .0047 L container with a pressure of 300,000 Pa
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express the answer to two sig fiugres and include the appropriate units.
antimony is produced by the reaction of antimony oxide sb4o6 with carbon according to the following unbalanced
How is posible that an ionic compund have a positive and negative ions and still have a net charge of zero
Identify the anions that react with silver nitrate to form precipitates that do not dissolve when acidified with nitric acid.
A biochemical engineer isolates a bacterial gene fragment and dissolves a 14.7 mg sample of the material in enough water to make 36.5 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
The following equation represents an oxidation-reduction reaction that uses oxygen. Show how this reaction can also be defined as an oxidation-reduction reaction in terms of electron transfer Pb(s)+02(g) --> PbO(s)
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