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In the Haber process, ammonia is synthesized from N2 and H2: N2 (g) + 3 H2 (g) ? 2 NH3 (g) DGº at 298 K for this reaction is -33.3 kJ/mol. The value of DG at 298 K for a reaction mixture that consists of 1.9 atm N2, 1.6 atm H2 and 0.65 atm NH3 is kJ.
An aqueous solution of NaNO3 is 22.0% NaNO3 by mass. The density of the solution is 1.127 g/mL. Calculate the molality, the molarity and the mole fraction of NaNO3.
The silicon in the plate is a mixture of naturally occurring isotopes. One of the those isotopes is silicon-30, which has an atomic mass of 29.97376 amu and a percent natural abundance of 3.10%.
Using the diagrams provided below, draw an atomic-scale view for the chemical species that are present in the solutions in each beaker. In your diagrams, be sure to Include all chemical species except water molecules
If 23mL of 6.4M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid.
The discovery of hafnium, element number 72, provided a controversial episode in chemistry. G. Urbain, a French chemist, claimed in 1911 to have isolated an element number 72 from a sample of rare earth (elements 58-71) compounds. However, Niels B..
Predict the major organic product formed in the addition of HBr to 2,3-dimethyl-2-butene. Provide a stepwise mechanism for the reaction, showing all electron movement using the curved arrow convention.
A student's piece of galvanized metal had a mass of 42.73 grams before dipping it into the acid. Afterwards its mass was 42.22 grams. How many moles of zinc were removed? How many atoms is that?
Draw the structures of the eight isomeric pentyl alcohols (C5H11OH) and name them including primary
Write and balance the given chemical equation and Write a balanced equation for this reaction
the activation energy for the isomerization of methyl isonitrile is 160 kJ/mol. Calculate the fraction of methyl isonitrile molecules that has an energy of 160.0 kJ or greater at 500 K.
A solution of sodum hydroxide is standardized against potassium hydrogen phthalate (molecular mass = 204.224 g mol-1). From the following data, calculate the molarity of the NaOH solution.
centered orthorhombic has two lattice positions one on the rectangular top and bottom face
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