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Calculate mass, mole fraction and avg. molecular weight of airCalculate the constituent (a) mass, (b) mole fraction (c)average molecular weight of air at 25 degree centigrade, 1 atm, and molar density of all listed gases is 24.5 L/mol, and volume air is given to be 100 L.
Name Volume fractionN2 0.7808O2 0.2095Ar 0.0093CO2 315 ppmNe 18 ppmHe 5.1 ppmCH4 1.0 ppmKr 1.0 ppm
Dissolves via the reaction and the temperature of the solution raises to twenty six degree celsius.compute the enthalpy change, , for this reaction per mole.
Heated and allowed to expand against a constant pressure of 1.20 atm until its volume reaches twenty eight Litres. Now determine Which of the given data is correct?
What volumes of the stock solution will you have to pipet into the flasks to prepare standards and What mass of gas does the container contains If the volume of a container
How many cubic centimeters of an ore containing only 0.22% gold (by mass) must be processed to obtain $100 worth of gold.
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
how many moles of nitrogen are in 5.3 L container at 1.25 atm and a temp of 85 degrees C.
3I2(s) + 2P(s) → 2PI3(s) What is the percent yield of the reaction if 28.3 g of phosphorus triiodide PI3 is obtained when 68.0 g of I2 and 68.0 g of P are mixed and allowed to react.
How many gm of dry NH4Cl need to be combined to 2.30L of a 0.300M solution of NH3, to prepare a buffer solution of pH 8.85.
Determine the concentration of the sodium hydroxide solution? Considering this balanced equation given as :
Calculate w (in kJ) when 376 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 335 K:
The volume of a gas sample is 200L at 740 torr. what is its volume at 760 torr? Assume that the Temperature remains constant
Calculate the Gibbs energy of the reaction (delta G rxn) at 25'C for the above rxn when all three gases are at 0.0010 atm. Kp = 1.8 x 10 ^ - 18
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