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use qualitative solubility data to explain why the initially formed polystyrene was a liquid, but became a granular solid after repetitive addition with methanol. Explain this different physical state behavior in terms of chemical structure and secondary intermolecular bonding.
there is no measurable difference between final and initial pH - that is why it is called a buffer E. final pH is 0.16 pH units lower than original pH
When an ionic solid is added into a solvent, you can see that the ionic solid dissociates into its respective cations and anions. The solvent molecules immediately cluster around the ions.
An aqueous antifreeze solution is 35.0% ethylene glycol (C2H6O2) by mass.
Solution A is 2.00 L of a 2.00 M aqueous solution of copper(II) nitrate. Solution B is 2.00 L of a 3.00 M aqueous solution of potassium hydroxide. React the two solutions. Determine the concentrations of all ions left in solution (from part a) and..
Calculate the total mass of acetic acid dissolved in the solution contained in the volumetric flask (f) The mass(g) of acetic acid dissolved in the solution contained in the volumetric flask came drom the 25.00 ml vinegar sample.
If 5.50 of the unknown compound contained 0.183 moles of carbon and 0.367 mol of H of , how many moles of oxygen, , were in the sample?
what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask? 6A(g) + 2B(g) %u2192 2A3B(g)
For a gas sample of N molecules that consists of N1 molecules of mass m1 and N2 molecules of mass m2, follow through a derivation which led to the result PV=1/3mv2 and PV = nRT.
What is the volume occupied by 0.265mol of helium gas at a pressure of 1.28atm and a temperature of 307K
Ethane C2H6 burns in oxygen a.) what are the products of reaction b.)write the balanced equation for the reaction
Consider a solution formed by mixing 58.0 mL of 0.100 M H2SO4, 37.0 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 25.0 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH.
Hydrogen is collected over water at .975 atm and 28 degrees Celsius. What is the partial pressure of H2?
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