Find the composition of the mixture by volume
A gas mixture composed of helium and argon has a density of 0.605g/L at a 741mmHg and 298K. What is the composition of the mixture by volume?
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A 42 gram block of an unknown metal at 86.0oC was dropped into an insulated flask containing approximately 50.0 grams of ice and 20.0 grams of water at 0oC. After the system had reached a steady temperature it was determined that 12.0 grams of ice
Calculate the wavelength of a 141 g baseball in nm at this speed. What is the wavelength of a hydrogen atom at the same speed?
How many grams of sodium chlorida are in 100 mL of water if the vapor pressure of the solution is 630 torr @ 20 C? Given that the vapor pressure of pure water is 1 atm @ 20 C.
Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH. What is the molecular weight of the unknown acid HZ?
Write the reaction equation of MCO3 and HCl; (b) Calculated the Molecular Mass of MCO3. (c) Determine what is this sample: CaCO3 ; MgCO3; or BaCO3 ?
A vertical curve is formed when a rural highway passes under a bridge joining a -8% grade to the horizontal grade satisfying the requirement for safe speed of 90 Km/hr
Determine the solubility of CO2 in soda water at 25°C if the pressure of CO2 is 5.2 atm. The Henry's law constant for carbon dioxide in water at this temperature is 3.4 × 10-2 M/atm.
What mass of F2 is needed to produce 113 g of PF3 if the reaction has a 81.4% yield?
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