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Compute the amount of heat essential to fully sublime ninety grams of solid dry ice (CO2) at its temperature of sublimation if it is given that the heat of sublimation for CO2= 32.3 kj/mol express your answers in kilojoules?
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
Design a qualitative analysis scheme
Use a drawing program to draw a beaker.
using a sample of river water sample analyzed for total inorganic carbon ,The river pH= 7.1 and an inorganic C concentration of 6.97 mg C/L.c
Find the amount of known substance present in the mixture and determine the mass of calcium carbonate present in original mixture.
15.0 moles of gas are in a 5.00L tank at 22.2°C. compute the difference in pressure between CH4 and an ideal gas under these circumstances. The van der Waals constants for CH4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
Compute the mass of an electron if the difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 grams?
Using a sample of CO 2 occupies a 2.54dm^3 container at STP. Determine the volume of the gas at a pressure of a temperature of 26.0 degree Celsius and 150.0 kPa?
Calculate the molar enthalpy of combustion of Phosphorous when this combustion process was carried out under the constant pressure?
Determine How hot should be the air in a ballon be heated if it has initially a volume of 750. L at the temperature of 20 degree celsius and the final volume must be 1,000.l
Carbonate buffers are significant in regulating PH of blood at 7.40. Calculate the concentration of Carbon dioxide in a 0.200M NaHCO3 at PH=7.40.
compute the volume of sodium hydroxide that is required to make a buffer with a pH = 5.77.? given that pKa = 4.77. and initial volume of the acid solution = 1.00 Litre.
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