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what is the change of enthalpy in condensing 15.0 g of water at 100 degrees C at constant pressure.
Find out what will be the half-lives if [NOBr]o = 0.054 M - The rate constant for the second order reaction Is 0.80 M-1s-1 at 10 degree celsius temperature
a 150.0 g sample of metal at 80 c is added to 150.0g of H2O at 20 c. the temperature rises to 23.3 c. assuming that the calorimeter is a perfect insulator, what is the specific heat of the metal?
Calculate ?G for 1.00 mole of an ideal gas as the external pressure is increased from 1.00 bar to 2.00 bar at a constant temperature of 298.0K.
Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.
ethyl acetate:petroleum ether was used to elute the chlesterol before dichloromethane
Consider the reaction: C2H5OH (l) + 3O2 (g) --> 2 CO2 (g) + 3 H2O (l) , ?H= -1.37 x 103 kJ When a 24.8-g sample of ethyl alcohol (molar mass = 46.07 g/mol) is burned, how much energy is released as heat?
What is the purpose of running both Dalton Vll mixed markers and lanes with individual markers on SDS-PAGE?
How many grams of CO2(g) would occupy a volume of 326 mL at 20.6°C and 703 torr?
Calculate the percent ionization of nitrous acid in a solution that is 0.230 M in nitrous acid (HNO2) and 0.270 M in potassium nitrite (KNO2).
What ions and/or molecules are present in relatively large proportions in a solution of a weak acid H2S (aq)?
A particular coal contains 2.92% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas. The sulfur dioxide gas then reacts with calcium oxide to form solid calcium sulfite
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ?C. What is the new pressure of the gas in Pa?
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