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Room temperature is often assumed to be 25°C. Calculate the molar volume of an ideal gas at room temperature
A hydrogen-filled balloon was ignited and 2.00 gram of hyrdogen reacted with 16.0 g of oxygen. How many grams of water vapor were formed?
1 if 50 kj of heat are given off by a chemical reaction in aqueous solution and all the heat is absorbed by the
Choose the answer in which the two atoms are listed in order of increasing ionization energy
If 4.00 g of the unknown compound contained 0.133 mol of C and 0.267 mol of H, how many moles of oxygen, O, were in the sample?
What would be the initial rate of formation of I3 (in units of M/s) when the following initial concentrations were used
If 20.0mL of 0.00200 M Fe(NO3)3 is diluted to 50.0mL, what is the concentration of Fe+3 in the diluted solution?
calculate the number of excess reagent units remaining when 188 PbS formula units and 279 O2 molecules react?
a 2.00-g sample of white solid was vaporized in a 345-ml vessel. if the vapor has a pressure of 985 mmhg at 158degc
A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 29.0°C. What was the final temperature?
structure of the substance to be used in this experiment to initiate free radical chain chlorination
The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 1.951E+6g, what mass of liquid oxygen should be used
Calculate the volume of a gas if 10.0 ml of pure alcohol (C2H6O) is vaporized at its normal boiling point. (assume 1 atm pressure)
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