What are the empirical and molecular formulas of compound
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?
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Calculate the pressure (in atm) exerted by 1.00 mole of acetylene at 125°C in a 20.0-liter container. The van der Waals constants for acetylene are: a = 20.0 L2 • atm/mol2, b = 0.100 L/mol.
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.
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?
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
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