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If the volume of the cylinder is 4500 ml and the pressure of the N2 in it is 3.3 atm. (temperature is 25ºC)
a) How many moles of nitrogen molecules are in the cylinder?
b) How many grams of nitrogen are in the cylinder?
In the purification process, the organic layer is washed sequentially with 2 M NaOH, water, and saturated aqueous sodium chloride. What is the purpose of each of these washes and why is cold 2 M NaOH recommended?
in europe gasoline efficiency is measured in . if your cars gas mileage is 34.0 how many liters of gasoline would you
give explanation why the boiling point of a 2-component mixture increase slowly throughout a simple distillation while
two thermometers a and b are wrapped in pieces of gauze. the gauze around thermometer a is moistened with water and the
68.0 ml of a 1.70 m solution is diluted to a volume of 258 ml. determine the final concentrationif a 129 ml portion of
What is the silver ion concentration in a solution prepared by mixing 357 mL of 0.392 M silver nitrate with 469 mL of 0.504 M sodium phosphate?
Wriite an equation for a substitution reaction between 2-bromopropane and potassium iodide. In this case, do not include the state
Calcium Hydroxide is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.30 M Ca (OH)2 aq solution.
An aqueous solution containing 35.0% by mass of an unknown covalent compund in water was found to have a freezing point of -3.5 deg C. Calculate the molar mass of the unknown compund.
calculate number of moles of anhydrous compound recovered. c- calculate number of moles of water lost from the hydrated compound.d- what is the formula of the hydrate?
Describe the two methods for determing the volume of the vapor In a Molar Mass of a Volatile Liquid experiment? Which method is likely to give more precise results? Why?
the equilibrium constant kp for the reactioncog h2og -gt co2g h2gat 986degc is 0.63. a rigid cylinder at that
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