What is the molar mass of the gas
An experiment shows that a 247mL gas sample has a mass of 0.432 gas at a pressure of 752 mmHg and a temperature of 28C. What is the molar mass of the gas?
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Explain the following terms with respect to 4-storke cycle internal combustion engines: stroke/bore ratio, piston displacement, clearance volume, compression ratio, engine displacement, indicated power, friction power, brake power, drawbar power and
An unknown sample of Cu2+ gave an absorbance of 0.262 in AA analysis. Then 1.00 ml of solution containing 100.0 ppm Cu2+ ws mixed with 95.0 ml of unknown and diluted to 100 ml in a volumetric flask, The absorbance of the new solution was 0.500.
Air flows in a channel whose velocity at 3 neighbouring points a,b, and c, which are 10 cm apart, are shown in the following figure.
A compound contains only carbon, hydrogen, and oxygen. Combustion of 0.01068 g of the compound yields 0.01601 g of CO2 and 0.00437 g of H2O. The molar mass of the compound is 176.1 g. What are the empirical and molecular formulas of the compound?
What volume of 0.131 M BaCl2 is required to react completely with 42.0 mL of 0.453 M Na2SO4? The net ionic equation for the reaction is Ba2+(aq) + SO42-(aq) --> BaSO4(s)
The manometer shown above in problem 1 above contains water and kerosene. with both tubes open to the atmosphere, the free surface elevations differ by H=20mm determine the elevation difference when a pressure of 98.0 Pa is applied to the right.
A 14.0 g sample of CaCl2 is dissolved in 121 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J
Calculate the mass of oxygen (in mg) dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air to be 0.21 and the Henry's law constant for oxygen in water at this temperature to be 1.
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