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Chemistry Problem
You have gas! Well, you have a 450.0 mL sample of gas in a flexible container at 298.15 K. If you heat the gas to a temperature of 315.15 K, what is the new volume in liters (L)?
the mclmaximum contaminant level for nitrate in drinkingwater is 10ppm weightweight. a test conducted in 2008
List the intermolecular forces available in benzene and in water, and predict whether which substance will have a higher boiling point, and explain why. Make sure you include a proper discussion of all the factors involved. (That is, talk about t..
in tropospheric chemistry the decomposition of n2o5 is an important process. the half life for the first order
What is the relative concentration of the food dye that gives rise to the green color in Monday's dessert compared to Tuesday's dessert.
CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
The predominant isotope of gold ^197, 79 Au, has an experimentally determined exact mass of 196.967 amu. What is the total nuclear binding energy of gold in electrovolts per atom
A mixture of helium and neon gases at 237 K contains three times the number of helium atoms as neon atoms. The concentration (n/V) of the mixture is found to be 0.150 mol/L. Assuming ideal behavior, what is the partial pressure of helium
Calculate the percent composition by mass of C, H, and O in cinnamic alcohol. How many molecules of cinnamic alcohol are contained in a sample of mass 0.469g.
A flask at 21.0°C contains exactly equal moles of xenon and argon. Which of the two gases exerts the greater partial pressure. The atoms of which gas have greater average kinetic energy
Alpha helices are a type of secondary structure in proteins. What is the length of a 41-kDa single-stranded ?-helical protein segment. Assume a mean residue mass of 110 Da.
What if you were designing an engine for a SUV that produced 2.40 × 102 L/s of exhaust with a CO content of 1.9 mg CO per 1L of exhaust? What volume of catalytic matrix would you need to reduce the CO emission in this automobile?
For a solution having 1 x 10-3 equivalents/liter total alkalinity (contributions from HCO3-, CO32- and OH-) at [H+]=4.69 e-11, what is the percentage contribution to the alkalinity from CO32-
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