Wednesday, February 10, 2010

True or False Question: Number of Solute Particles and Molarity?

Please help me answer the following: Please note that it needs to be either True or False. If it's false please tell me how to make it true!





The number of solute particles present in 1.0L of .50M sodium sulfate is the same as the number of solute particles present in 1.0L of .50M sucrose.





PLEASE HELP ME!True or False Question: Number of Solute Particles and Molarity?
Na2SO4 in solution --%26gt; 2Na + SO4





so, for each mole of Na2SO4 you get 3 moles of particles (ions) in solution..





sugar is not ionic and does not dissociate in water.. so 1 mole in = 1 mole of particles in solution





so the answer is false because the Na2SO4 solution has





.5 mol * 1 L * 3 (moles of particles) = 1.5 moles particles





for the sugar:


.5 mol * 1 L * 1 (mole of particles) = .5 moles of particles





so to make this true, you need more sugar.. three times as much as you have.
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