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1. A solution of ethanol (C2H5OH) in water is prepared by dissolving 10.0mL ethanol (density is 0.79g/cc) in enough water to make 250.0mL of solution. What is the molarity of the ethanol solution?
2. 2CH4 + 2NH3 + 3O2 = 6H2O + 2HCN
How many grams of HCN can be produced if 600.0 g of oxygen is added to a mixture of 400.0g of ammonia and 300.g of methane?
Explain in gory detail the relationship between temperature and vapor pressure. Lots of pictures might be helpful. Why does water expand when it freezes?
What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00, 2.00, 5.00 and 10 x 10 -3 M KMnO4 solutions?
sample of amygdalin yields alpha hydroxyphenylacetic acid that consists of 70% of the R isomer and 30% of its enantiomer. What is the specific rotation of this mixture? The specific roation of pure (R)-alpha-hydroxyphenylacetic is -154.
1.52g of an oxide of nitrogen contains 0.56 g of oxygen. determine the empirical formula of the compound.?
Electron Donor and Receptor in Metal Complexes, In the first step of the catalytic cycle, the alkene bonds to palladium to make a new metal complex The alkene is now a ligand because the pi-bond of the alkene is donating some of its electrons to p..
Which of the following is the most effective buffer system for a pH value of 4.45?
Water molecules change their states between the liquid and gaseous states. A.only when water vapour is saturated B.at all times becauseevaporation and condensationoccur any time C
find the molarity of an unknown NaOH solution if 0.5536 g of the KHP required 37.00 mL of a NaOH solution.
The reaction for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction.
A bicycle tire is filled with air to a pressure of 75 psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire
How many moles of O2 are needed to consume 0.52 mol of Mg in the following unbalanced reaction? Mg + O2-> MgO
Energy cost of dissociation was found to be 4 kWh/m3 of CO2. Calculate conversion degree of CO2 into CO and O2 in this system.
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