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It took 49sec for 1.0 L of helium to effuse through a pin hole. Explain How long will it take for 1.0 L of methane CH4, to effuse under identical conditions?
an automobile gasoline tank holds 22 kg of gasoline. when the gasoline burns 83 kg of oxygen is consumed and carbon
three gases nitrogen helium and krypton are confined in a 4.00 l vessel at a pressure of 14.0 atm. the vessel contains
the temperature of the calorimeter (including its contents) rose from 23.18oC to 27.65oC. What mass, in g, of benzoic acid was burned. here is what i did, 3226/122.13=26.41 delta t =4.474 so 4.474*12.5/26.41 =2.12 is the answer 2.12g
Compute the molality of a solution containing 327 g glucose(C6H12O6) dissolved in 1.52 L of water. (Assume a density of 1.00 g/mL for water.)
How many moles of excess reactant are present when 312 mL of 0.222 M sulfuric acid reacts with 0.422 L of 0.223 M sodium hydroxide to form water and aqueous sodium sulfate
The mass of a cube of iron is 324 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
What volume of this gas must be burned to raise the temperature of 5.3 L of water by 5.0°C? Assume the gas is at 1.0 atm and 298 K.
Draw products A through E for the following series of reactions. If both ortho and para product would form, continue on only with the para product, but mention that ortho would also be a product.
A 16.0 L gas cylinder has been filled with 5.20 moles of gas. You measure the pressure to be 4.40 atm. What is the temperature inside the tank
n photosynthesis plants use energy from the sun in combination with carbon dioxide and water to form glucose c6h12o6
Tritium, 3H, undergoes beta decay with a decay constant of 5.63 x 10-2 yr-1. How much time is required for a 1.00 g sample of tritium to decay to 0.250 g
at a particular temperature k2.0x10-6 moll for the following reaction 2co2 g at equilibrium with 2cog o2 g if 2.1 mol
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