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When 2.0 g of NaOH are dissolved in 49.0 g of water , the temperature increased 10.5 C . What is the heat of dissolution of NaOH expressed in Joules per mole?
dinitrogen pentoxide n2o5 decomposes in the gas phase to form nitrogen dioxide no2 and oxygen gas o2. the reaction is
Given the three isomeric alcohols, 2,2-dimethyl-1-butanol, 2-methyl-2-pentanol, and 2-methyl-3-pentanol, which are chiral
what is the vapor pressure of the solution at 20 °C? Values at 20 degress celsius
Calculate the molar concentration of Tl+ and Cl- in this saturated solution. Calculate Ksp value for TlCl at this temperature
A 97 gram solution of silver nitrate contains 10 grams of AgNO3. What is the percent by mass of silver nitrate in this solution. Answer in units of %
which is a better method for background correction and why? D2 or Zeeman? Could you list advantages and disadvantages of each?
A water desalination plant is set up near a salt marsh containing water that is 0.10 M NaCl. Calculate the minimum pressure that must be applied at 17°C to purify the water by reverse osmosis.
Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed
a gas sample containing 1.65 mol at 25degc exerts a pressure of 413 torr. some gas is added to the same container and
Give the products (if any) expected from the treatment of 2-methyl-2-pentene with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
Pressure is gradually decreased from 87.7mL to 42.6mL. What is the final pressure of ammonia if there is no change in pressure?
For the elementary process below, the activation energy is 27 kJ/mol and the enthalpy change is -20 kJ/mol. What is Ea for the reverse process, in kJ/mol
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