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Question- What is the change in internal energy of a system when is lose 10 kj of heat and 5000 J of work is done on the system?
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The vapour pressure of a substance at 20.0 oC is 49.3 kPa and its enthalpy of vaporisation is 40.6 kJ mol-1. Estimate the temperature at which its vapour pressure is 80.0 kPa
If the activation energy for a given compound is found to be 42.0 kJ/mol, with a frequency factor of 8.0 × 1010 s-1, what is the rate constant for this reaction at 298 K?
A 0.7445 g sample containing only CaCO3 and Mg(OH)2 is titrated using 0.3004 M HNO3. If it takes 31.75 mL of HNO3 to reach the end point of the titration
A 643 mL gas sample at STP is compressed to a volume of 187 mL, and the temperature is increased to 33?C. What is the new pressure of the gas in Pa? Answer in units of Pa.
calculate the solubility (in mol/liter) of Al(OH)3 in a solution
Consider the reaction between Mercury Iodide (Hg2I2) and sulfur yielding mercury (HgS) sulfide and iodine (divalent molecule). Which element is reduced
consider the melting of one mole of water. use the following data to answer the questionss? h2o l69.9jk.mol s? h2o
Write the rate law for the clock reaction (equation 1) using variable for exponents.
Question- For malonic acid (CH2(CO2H)2), (Ka1 = 1.42 x 10^-3) and (Ka2 = 2.01 x 10^-6) abbreviated as H2M, find the pH H2M, HM-, and M2- concentration for each of the following
53.576g of MgSO4 2H2O are dissolved in 250.00 mL of 1.50 M Ba(NO3)2 solution to produce barium sulfate precipitate. How many grams of barium sulfate were formed after the reaction
Find the temerature at which water boils on a day in the mountains when the barometric pressure is 593 mmHg. (Gien the heat of vaporization of water is 40.79 kJ/mol).
Construct a detailed sequence of rxn to synthesize meso-1,2,-dichlorocyclopentane as the major substrate product, starting with (1R,2S)-2-bromocyclopentanol as the subtrate.
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