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A chemistry final in exactly a week. Old tests are only semi-useful as the curriculum has recently been changed. What is an effective strategy for studying chem? In particular chemical kinetics?
at 600 degrees c the equilibrium constant for the reaction 2hgos --gt 2hg l o2 g is 2.8. calculate the equilibrium
All numerical answers must be reported to the correct number of significant figures. What volume of 1.000 M LiCl must be diluted with water to prepare 250.0 mL of 0.100 M LiCl
What is the molarity of a Na2Cr2O7 solution if 22.5 mL of it is required to oxidize 33.0 mL of 0.150 M Fe(NH4)2(SO4)? The reaction products include Cr3+ and Fe3+.
if the initial concentration of ab is 0.230 m and the reaction mixture initially contains no products what are the
you need to make an aqueous solution of 0.180 m sodium sulfate for an experiment in lab using a 250 ml volumetric
A graduated cylinder contains 148 mL of water. A 11.0 g piece of iron (density = 7.86 {g/cm^3}) and a 19.0 g piece of lead are added. What is the new water level in the cylinder? Density of the lead is 11.3g/ml
a solution contains 10.0g of koh and 900.0ml of water. the volume of the solution is 904.7ml. what is the mass percent
5Ca+ V2O5 ----> 5CaO + 2V In one process, 1.54 x 10^3 g of V2O5 react with 2.07 x 10^3 g Ca. Calculate the theoretical yield of V. Calculate the percent yield if 795 g V are obtained
Explain why the boiling point of your cyclohexane: toluene mixture rose slowly throughout your simple distillation procedure. Explain this in terms of the temerature/composition diagram
Match each biochemical with the correct function
Problem- How many milliliters of a 1.0 M bromine (Br2) in CH2Cl2 solution are there in 1.1 molar equivalents of the N, N- dimethylaniline (above). How many moles are there in 7.0mL of N, N- dimethylaniline
suppose a 5 liter sample of oxygen gas at a given temperature and pressure contains 1.08x1023 molecules. how many
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