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An aerosol spray can with a volume of 456 mL contains 3.09 g of propane gas (C3H8) as a propellant. If the can is at 23°C, what is the pressure in the can? What volume would the propane occupy at STP?
The can says that exposure to temperatures above 130°F may cause the can to burst. What is the pressure in the can at this temperature?
What is the wavelength of a photon of electromagnetic radiation having a photon energy of 4.56X10^-19 J? Report your answer in nanometers, to the correct number of significant figures.
A solution of ammonia and water contains 1.50×1025 water molecules and 5.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
To find the % by mass of a compound in a given sample - Determine the percent by mass of calcium carbonate in the sample. State any assumptions.
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
She weighed an empty 4.3 L bulb, then filled it with the gas at 1.60atm and 23.0 C and weighed it again. The difference in mass was 7.9g . Identify the gas.
At a given temperature, the equilibrium constant K for the reaction 2SO2(g) + O2(g) 2SO3(g) is 3.0 × 109. If 2.80 mol of SO2 and 4.06 mol of O2 are placed in a 1.78-L container.
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
The following questions are based on the following reaction, in which Cl has a -1 oxidation number in MnCl2. 4HCl + MnO2 --> Cl2 + 2H2O + MnCl2. What is the oxidizing agent?
An oxygen molecule is adsorbed onto a small patch of the surface of a catalyst. It's known that the molecule is adsorbed on 1 of 36 possible sites for adsorption
The concentration of methane in the biogas leaving an anaerobic digester (part of a wastewater treatment system) is 55% (volume basis) at 50 °C. The remaining 45% is CO2.
A student adds 0.1 mol of oxalic acid (H2C2O4) and 0.1mol of sodium dihydrogen phosphate to enough water to make 1.0L of solution. The following equilibrium is established with Kc from this reaction greater than 1
A sugar water mixture contains 45.8g of sugar and 108.5 g of water. What is the percent by mass of sugar and the percent by mass of water in the solution?
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