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Draw a graph that explains the distribution of the kinetic energies of gas particles when the gas is at two different temperatures. Label the axes. On one axis show the average kinetic energy at each temperature.
What is the specific heat capacity of 5.0 g of metal, if 200 J of heat raises the temperature of the metal 45 C
A gas mixture with a total pressure of 750mmHg contains each of the following gases at the indicated partial pressures:CO2 , 133mmHg ; Ar,215mmHg and O2,177mmHg
Tetraphosphorus decaoxide reacts with water to form phosphoric acid, a major industrial acid. In the laboratory, the oxide is used as a drying agent.
The carbon atom of the methoxy group (OCH3) appears at a larger chemical shift than the carbon atom of the carbonyl group (C=O).
What it the chemical reaction between silver ion and excess ammonia.
When a 2.41x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed.
A pentapeptide was found to contain the amino acids Phe, Gly, Met, Ala, and Ser. N-Terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptide yielded the dipeptides
a student found that 0.0025 moles of NaOH was used in titration. how many moles of fatty acids where in the sample
One mole of potassium dichromate completely oxidises the following number of moles of ferrous sulphate in acidic medium
If the standard heat of rxn for the rxn is calculated to be -567.4 kJ/g mol FeS2(s) what is the value of Delta Hrxn will you use per kg of FeS2 burned in an energy balance
2NO2(g)has come to equilibrium, the concentration of NO2 is 2.2 x 10-3 mol/L. Calculate the molar concentration of O2 at equilibrium.
Present-day carbon (in living matter) gives 15.3 disintegrations per minutes per gram of total carbon. Determine the date of the volcanic eruption. Recall that the half-life of carbon-14 is 5730 y.
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