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How many grams of methane must be combusted to heat 1.15 of water from 26.0 to 89.0, assuming as a product and 100% efficiency in heat transfer?
Hydroxylamine, HONH2, readily forms salts such as hydroxylamine hydrochloride which are used as antioxidants in soaps. Hydroxylamine has Kb of 9.1 x 10^-9. What is the pH of a 0.025M HONH2 solution
Derive an expression for (δU/δV)T for a gas that obeys the van der Waals equation of state.
what is the vapor pressure at 40 degrees Celcius of a solution containing 4.60*10^2 g of glycerin, C3H8O3, nonvolatile, nonelectrolyte solute, in 4.5*10^2 g of water? The vapor pressure of water at 40 degrees Celcius is 55.3 mmHg
What is the osmolarity of the following solutions. Express answer in two signint figures. 1. 0.35 M KBr 2. 0.15 M glucose +0.05 M K2SO4
By what percentage does a dilute aqueous solution expand when heated from 15 degrees to 25 degrees C? If a 0.5000M solution is prepared at 15 degrees C, what would molarity be at 25 degrees C?
when sodium hydroxide naoh of 4.00 g of was dissolved in water of 150.00 grams a value for deltat of 10.00 degree
Acid-catalyzed dehydration of secondary and tertiary alcohols proceeds through an E1 mechanism. The first step is the protonation of the alcohol oxygen to form an oxonium ion.
The optical rotation of a sample composed only (S)-1-amino-1-phenylethane is determined. [a]obs = -157.0 degrees. If the cell path length was 1.0 dm and the concentration of (S)-1-amino-1-phenylethan in the sample was 5.2 g/mL
Calculate the specific heat of a metallic element if 314 joules of heat energy are needed to raise the temperature of a 50.0 gram sample from 25 degrees celsius to 50 degrees celsius.
1. for the term symbolsnbspnbsp 3d 4d and 2gnbsp write the designation including the j values.nbsp in each case pick
BaSO4 is listed as insoluble. Actually, BaSO4 is highly soluble, Ksp=1.1e-10. What is the solubility, in mg/l?
Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid? Drag the appropriate compounds to their respective bins. CO, NO, LiCl, HBr, BaS, RbCl, SrO, LiBr
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