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Radio waves travel at the speed of light, 3.00x10^8 m/s. if you were to broadcast a question to an astronaut on the moon, which is 239,000 miles from earth, what is the minimum time that you would have to wait to receive a reply?
How many stereoisomers are possible for each of the following substances? Draw them, and name each by the R-S and E-Z conventions.
A small collection of dimes and quarters are submerged in 10.00 mL of water in a graduated cylinder causing the water level to rise to the 18.87 mL mark. What is the combined monetary value (in Can$) of those coins?
The U.S. recommended daily allowance (RDA) of folic acid, (C19H19N7O6) is 400.0 ?g. Calculate the number of molecules in the U.S. RDA. Do not enter units.
What is the significance of high pressure used in HPLC?
How many litres of ethyl mercaptan (C2H5SH ; liquid density = 0.8931 g/cm^3) should be added to 100,000 standard cubic meters of natural gas to produce a concentration in the gas of 1ppm
write the formulas of all possible monobromination
Using structural formula, write a balanced equation for the phosphoric acid catalyzed reaction of cyclohexanol to give cyclohexene.
a student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate. 3.2349 g of sodium
Calculate the entropy of fusion of a compound at 20 oC given that enthalpy of fusion is 45 kJ/mol at its melting point of 162 oC and Cp of liquid
Find the partial pressure of each produce and the total pressure in the flask at the end of the reaction.
you are titrating 15.0 ml of an aqueous acetic acid with standard 0.300 molarity naoh. the equivalence point is reached
the cancer drug cisplatin contains 65% platinum. if you have 1.53 g of compound, how many grams of platinum does this sample contain
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