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A gas in a canister with a volume of 2.0L at 1.0 atm and 21.0 degrees C is transfered to a smaller container with a volume of 0.75L under 2.0 atm pressure. What is the temperature of the gas under these new conditions?
a solution of vinegar is 5.40% by mass acetic acid in water. assuming the density of vinegar is 1.00g/mL, what is the molarity of the acetic acid?
A gold alloy has a density of 12.4g/ml and contains 75%gold by mass. calculate the volume of this alloy that can be made from 255 g of pure gold.
A solution composed of 50% ethanol (EtOH), 10% methanol (MeOH), and 40% water (H2O) is fed at the rate of 100 kg/hr into a separator that produces one stream
what are the practical properties of acetone and detailed explanation of its properties.
Diethylamine, (C2H5)2NH, is a weak base (pKb=3.16 at 25oC). What is the pH of 0.155 mol/L (C2H5)2NH(aq) at 25oC
Write a balanced chemical reaction for the formation of a free fatty acid from a soap molecule under acidic conditions.
If your pipet was incorrectly calibrated so that it transferred 5% too much solution, would the density you calculated for the liquid tend to be larger or smaller than the correct value
it absorbs 32.60 kj of heat from its surroundings. what is its final temperature in C (specific heat .9930 J g C for Al)
Calculate the binding energy per nucleon (in MeV) for P-32 (atomic mass = 31.9739 u). mass H = 1.007825 u and mass n = 1.008665 u.
a compound contains 14.5 g of magnesium and 3.5 g of oxygen. what is the mass percent of oxygen in the
Another solution of the same chemical is measured under the same conditions and has an absorbance of 0.81. What is its concentration?
Calculate the change in enthalpy of HCl + NaOH--> NaCl + H2O for this reaction using Hess's Law. Units should be kJ/mol.
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