How many molecules of each gas are present
A sample of air contains 78.08 % nitrogen, 20.94 % oxygen, 0.05% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 1.00 L of the sample at 39 C and 1.00 atm?
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If the three gases are mixed in a rigid container at 500 K so that the partial pressure of each gas is initially one atm, what will happen?
Determine the magnitudes of the additional loads that must be applied at B and F if the resultant of all six loads is to pass through the center ofthe mat.
Determine the percent yield for the reaction between 28.1g of Sb4O6 and excess c if 17.3 of Sb is recovered along with an unknown amount of CO.
A 45-g piece of ice at 0 degrees C is added to a sample of water at 9 degrees C. All of the ice melts and the temperature of the water decreases to 0 degrees C. How many gram sof water were in the sample?
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
35.5 grams of an unknown substance is heated to 103.0 degrees Celsius and then placed into a calorimeter containing 100.0 grams of water at 24.0 degrees Celsius. If the final temperature reached in the calorimeter is 29.5 degrees Celsius, what is
A scuba diver with a lung capacity of 5.1 L inhales a lungful of air at a depth of 44 m and a pressure of 5.4 atm.If the diver were to ascend to the surface (where the pressure is 1.0 rm atm) while holding her breath, to what volume would the air
Give an explanation for how calmagite works as an indicator for the titration of magnesium ion with EDTA. Explain why the water sample was buffered before it was titrated with EDTA.
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