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If the barometric pressure on a mountain top in colorado is 521 mm of mercury what is the pressure in inches of hg? in atmospheres? in Pascals?
A single pulse of a laser yields an average of 5.00 multiplied by 1018 photons with = 633 nm. If melting ice to water at 0°C requires 6.01 kJ/mol, what is the fewest number of laser pulses need to melt 10.0 g of ice?
A 0.4243-g sample of CaCO 3 is dissolved in 12 M HCl and the resulting solution is diluted to 250.0 mL in a volumetric flask. How many moles of CaCO 3 are used (formula mass = 1 00.1 )
Calculate the molecular rms speeds of He atoms at 10, 100, 1000 K in units of meters per second and miles per hour.
a mole of n-hexane is confined in a volume of 0.500L at 600 K. What will be the pressure according to a) the ideal gas law and b) the van der Waals equation
Calculate the partial pressure in atmospheres of O2 in the air outside an airplane cruising at an altitude of 10km where the atmospheric pressure is 190.0 mmHg.
Calculate the terminal velocity of particles with a density of 1.3 g/cm3 and a diameter of 250 microns falling through water at 200 C
Write a net ionic equation to explain why the pH didn't go up to about 10, as it would have if that amount of NaOH were added to distilled water or to 20ml 0.00040 M HCL, which also would have a pH of 3.40
The solubility of barium carbonate,BaCO3, is .0100 g/L . Its molar mass is 197.6 . What is the Ksp of barium carbonate?
what is the oxidizing and reducing agent 3C2H5OH(aq) +2Cr2O7^2-(aq)+16H^+(aq)-->3CH3CO2H(aq)+4Cr^3+(aq)+11H2)(l)
After the reaction comes to equilibrium, an additional 1.00g of O2(g) is added to the system. What is the expected partial pressure of SO2(g) then?
How long will it take for the concentration of XY to decrease to 12.5% of its intial concentration when the initial concentration is 0.100M? When the initial concentration is 0.200M?
Determine the Osmotic Pressure for the following aqueous solutions @ 25 degrees Celsius. (a.) 1.0. M Glucose, and (b.)1.0 M NaCl. Explain which solution has the greater osmotic pressure if any and why.
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