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What is the ratio of the rate of effusion of ammonia, NH(3), to that of hydrogen chloride gas?
If glass beads in the lab were replaced by a material with less surface area, will liquid seperation be better or worse. Why. Why should the recieveing flask be submersed under an ice bath when collecting isopropanol or acetone
Calculate the approximate molarity of this solution from the volume, percent composition, and density.
what is the maximum mass of an object traveling at 241 m·s-1 for which the de Broglie wavelength is observable?
HPLC analysis of basic analytes is better to perform at low pH when they are fully ionized (2 pH units lower than analyte pKa). For the analyte with pka= 5.6 and 60/40 acetonitrile/water eluent composition what should be the pH of an aqueous porti..
calculate the mass of sodium nitrate required to produce 7.00 grams of oxygen according to the following reaction: 2NaNO3 = 2NaNO2 + O2
how many grams of sulfur dioxide are produced when 90.0 g of thionyl chloride reacts with excess water according to the following equation? SOCl2+H2O --> 2HCl+SO2
Does (CH3CH2)2C=CHCH2CH3 have any cis/trans isomers and if so what are they? Also what's the compound structure?
Calculate the amount of heat, in kJ, needed to convert 15.0 g of ice at -21 C to liquid water at 75 C. Specific heat of ice = 2.10 J/(g C); heat of fusion of ice = 334 J/g; Specific heat of water = 4.18 J/(g C)
What mass of salt would have to be added to 1000.0 mL of water in order to raise the boiling point of the solution by 0.5 C?
Naming compounds containing double as well as triple bonds, Alkenes contain double bonds while alkynes contain triple bonds. How do you name a compound that has both a double and a triple bond
Assume your solution contains lead and iron but not silver or nickel. Explain how will you know that: - Either silver or lead is present ( that is, describe what you will see that will tell you at least one of these is there)
a. If a mint leaf is 12% methanol how much should be distilled? b. What temperature should the distillation take place-approximately?
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