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Explain how you would prepare 500.0mL of a solution that is 0.100M H2SO4 from concentrated 18.0M H2SO4, which is a liquid density 1.82 g/mL.
a sample of 1.0 mole of a perfect gas with cp= 20.8 JK -1 is initially at 3.25 atm and 310 k. It undergoes reversible adiabatic expansion until its pressure reaches 2.50 atm. calculate the final volume and temperature and the work done
A certain sunstance, intially present at 0.0800 M, decomposes by zero-order kinetic with a rate constant of 2.50 x 10-2 mol/l s. Calculate the time (in seconds) required for the system to reach a concentration of 0.0630
How is the rate of disappearance of ozone related to the rate of appearance of oxygen in the following equation: 2 O3 (g) ? 3 O2 (g) (rate expression)
You will need two series of standard solutions to calibrate your ion-selective electrodes - one series for sodium and one for calcium.
a 2.5-l sample of a 6.3m nacl solution is diluted to 75l.what is the molarity of the diluted
If you have a sodium salt of stearic acid and neutralize it with acid, the solubility changes. Explain those relative solubility differences of these two chemical species in a solvent like hexane.
one-dimensional infinite potential well has a particle in the state n1 . determine the probability of particle would be
The Ka for a weak acid, HA is 1.6x10^-6. What are the pH and the degree of ionization of the acid in a 10^-3 M solution. Also calculate pKa and pKb.
C6H5NH3Cl is a chloride salt with an acidic cation. If 19 g of C6H5NH3Cl is dissolved in water to make 150 mL of solution, what is the initial molarity of the cation.
At 20 degrees Celcius and 1 atm (pressure), gold (Au) has a density of 19.32 g/cm cubed. What would be the volume of 2.510 kg of gold at the same temperature and pressure
Formalin is an aqueous solution of formaldehyde, HCHO, used as a preservative. How many grams of formaldehyde must be used to prepare 2.5 L of 12.3 M solution
A sample of nitrogen gas occupies a volume of 3.87 liters at 52.8 oC and 2.11 atm. What will the new temperature (in °C) when the volume increases to 4.55 liters and the pressure remains constant?
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