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The solution to 2 questions1.a) state the assumption associated with the model used to develop the Ideal Gas Law
b) hence or otherwise describe under which physical conditions does the ideal gas law applies
2. Explain why hydrogen which has one electron in its lowest state, should in principle be a metallic conductor in its solid state whereas helium which has two electrons in its lowest energy state should be an insulator.
Gas x effuses 0.629 times as far as oxygen under the same conditions. what is the molar mass of gas x.
20.0ml of 0.150M Zn(NO3)2 are mixed with 20.0ml of 1.00 x10-4M Na2S. Calculate the amount of milligrams of ZnS (s) that will precipitate. (Ksp = 1.6 x10-24)
Compute the mass of salt required to bring the freezing point of 200 mL of H 2 O from 0 degrees C to -5 degrees C.
An impure sample of sodium carbonate, (Na2CO3) is allowed to react by dissolving it in an aqueous solution of 0.134 M HCl, according to the following reaction:
Chemical Kinetics - Predict the rate law of a reaction based on the mechanism of the reaction - What is the overall reaction and Predict the rate law based on the mechanism.
The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.
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.)
If 85 J of heat are added to a pure gold coin with a mass of 15g , What is its temperature change? Specific heat capacity of gold is 0.128.
The rate of disappearance of HBr in the gas phase reaction is 0.103 Ms-1 at 150 deg Celsius. what is the rate of reaction.
Find the molarity of a Ca(OH)2 solution,given that 363 mL of it is neutralized in a titration by 187 mL of 0.0058 M HNO3.
An sulphuric acid solution has a concentration 3.75 M and a density of 1.230 g/cm3. Determine the molality of the solution.
Under certain conditions, the formation of ammonia from nitrogen and hydrogen has an 8.12% yield. Under such conditions, how many grams of NH3 will be actually produced.
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