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One contains 0.2 mol Pb(CH3COO)2 , the second contains 0.1 mol Na2S , and the third contains 0.1 mol CaCl2 . what is the ionic equation for the precipitation reaction or reactions that occur. and What are the spectator ions in the solution.
At what temperature does benzene boil when the external pressure is 480 ?
Based on Liquid Chromatography, how can I changed if the capacity value and selectivity value and resolution value is not in the proper range?
solution a hydrogen peroxide usually comes commercially as a 30 ww aqueous solution with a density of 1.106 gml.
The density of hydrogen gas in a flask is 0.147 g/L at 305 K. what is the pressure inside the flask? Calculate the density in G/L of CH4(g) at 75 Celsius and 2.1 atm (R= .08206 L*atm/mol*K).
Draw the Lewis dot structure of phosgene. Include all 3 resonance forms by alternating the double bond among the 3 terminal atoms. Which resonance structure is best?
Explain why a determination of the rate law can never prove a proposed reaction mechanism but can sometimes disprove
what is the molar mass of a gaseous element that Effuses through an opening of a box 1.12 times as fast as argon at the same temperature.
The original volume is 70. cm3. If the combustion of this mixture releases 855 J of energy, to what volume will the gases expand against a constant pressure of 640. torr if all the energy of combustion is converted into work to push back the pisto..
What is the van't Hoff factor, i, for the solution. How would the value of i change as the solution becomes more concentrated. Explain.
If you fill the larger tank with oxygen to a pressure of 115 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Not wanting to waste the expensive sample, you decided to measure the pH of the solution and determined it to be 1.85. What was the concentration of the orginal acid sample? (Hint: it is a monoprotic acid)
question the vapor pressure of a water-insoluble organic substance is negligible at 100 degree c. can this substance be
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