4 chemistry questions....help plz?

O

oreo0madness

New member
1) Which of the following solutions contains the
greatest total ion concentration?
a– One mole of potassium chloride dissolved in 1.0 L of
solution
b– One mole of iron(II) nitrate dissolved in 1.0 L of
solution
c– One mole of potassium hydroxide dissolved in 1.0 L of
solution
d– One mole of sodium phosphate dissolved in 1.0 L of
solution


2) Which of the following statements is true?
a– If a substance is soluble, it must be an
electrolyte.
b– If a substance is an electrolyte, it must be
soluble.
c– Weak electrolytes must be less soluble than
strong electrolytes.
d– Nonelectrolytes are nonsoluble.


3) Consider five solutions, each of which has the same
mass of solute in 100.0 mL of solution. Which has the
highest concentration as measured in molarity?
a– KCl
b– NaCl
c– Na2SO4
d– NaF
e– CaCl2


4) Which of the following solutions contains the
greatest number of ions?
a– 400.0 mL of 0.10 M NaCl
b– 300.0 mL of 0.10 M CaCl2
c– 200.0 mL of 0.10 M FeCl3
d– 800.0 mL of 0.10 M sucrose


I need explanations plz

I would really appreciate your help :)
 
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