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Calculate the number of moles of carbon atoms present in 2.2 g of ethanol (C2H6O).
Predict the moles of ammonia that can be made using 22.4g of nitrogen and an unlimited amount of hydrogen
Consider the following reaction at equilibrium. What effect will adding more H2S have on the system? 2H2S + 3O2 ---> 2H2O +2SO2
the vapor pressure of pure water at 25 degc is 23.8 torr. what is the vapor pressure torr of water above a solution
Tris is widely used in a biochemical laboratory. Its acid dissociation constant is 8.32x10^-9. You have available at your lab bench a 0.1M solution of Tris in its protonated form, 0.1M solution of HCl and NaOH,
Calculate the standard enthalphy change for the following reaction.
glycemic index is a popular though controversial measurementof how quickly glucose is released from starchy foods into
A 10.0 g sample of krypton has a temperature of 25°C at 575 mm Hg. What is the volume, in milliliters, of the krypton gas?
Show the retrosynthesys for 1ciclohexil-2-pentanona? The reactive is suppose to be bromociclohexano
why is a stemless funnel recommended for filtration of the hot saturated solution? 2. in your buchner funnel, can you use filter paper that is to big for the funnel and curls up around the edges? why?
Provide structures consistent with the following molecular formulae and spectral data, and assign spectral peaks. Write your structures and tables on a sheet of paper.
Sucrose decomposes in acid solution into glucose and fructose according to first-order rate law, with a half-life of 3.33 hr at 25 degrees Celsius. What fraction of the sample remains after 9.00hr
an 18-karat gold necklace is 75 gold by mass 16 silver and 9.0 copper. how many grams of copper are in the necklace? if
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