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You have mixed 1.15g of Na2HPO4 (MW=142g/mol) and 2g NaH2PO4 (MW=138 g/mol) in 1L of water. What is the concentration of your buffer and what is the pH?
what mass of limestone must have dissolved if 3.05x10^10 kg of calcium hydrogen carbonate was produced? CaCO3(S)+H2CO3(aq)->Ca(HCO3)2(aq)
Clearly indicate coordinate system used in finding the answer. Basically trying to work up to building the molecular orbital diagram. I am stuck in the step where you determine the transformation sequences of each symmetry subset.
How many different aldols (b-hydroxyaldehydes), including constitutional isomers and stereoisomers,
Calculate the wavelength of the light that is absorbed for the electron's transition from n = 5 to n = 6 in Be3+ ion. (ans in nm.)
list all possible products of acetaldehyde (ethanal) was reacted with acetone in an aldol condensation
The gaseous product of a reaction is collected in a 25.0-L container at 27 degrees C. The pressure in the container is 300.0 kPa and the gas has a mass of 96.0 g. How many moles of the gas are in the container.
Compute the free energy of hydrolysis of Adenosine Tri Phosphate in a rat liver cell in which the ATP, ADP and Pi concentration
Given the following reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of CH4 is required to completely react with 100 grams of oxygen.
celcius have enough energy to overcome the activation energy barrier for a particular reaction, what is the activation energy for this reaction
A water sample is analyzed for a pollutant by the standard addition method . four solutions are prepared,each with a 10.00 ml aliquot of the water sample and varying amounts of a 10 ppm standard solutions of the pollutant
Write the IUPAC substitutive name of the alkene that will produce 2-bromohexane relatively free of isomers by the Markovnikov addition of HBr.
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ?C to 70 ?C .What is the speci?c heat capacity of this liquid.
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