Which of the following solutions contain the greatest total ion concentration?
a) one mole of potassium chloride dissolved in 1.0L of solution
b)one mole of sodium phosphate dissolved in 1.0L of solution
c)one mole of ammonium carbonate dissolved in 1.0L of solution
d) one mole of iron (II) nitrate dissolved in 1.0L of solution
e) one mole of potassium hydroxide dissolved in 1.0L of solution
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To determine which solution contains the greatest total ion concentration, we need to calculate the number of ions that are formed when each compound is dissolved in water.
a) potassium chloride (KCl) dissociates into one potassium ion (K+) and one chloride ion (Cl-). So, the total ion concentration is 2 (1 K+ ion + 1 Cl- ion).
b) sodium phosphate (Na3PO4) dissociates into three sodium ions (3 Na+) and one phosphate ion (PO4^3-). So, the total ion concentration is 4 (3 Na+ ions + 1 PO4^3- ion).
c) ammonium carbonate (NH4)2CO3 dissociates into two ammonium ions (2 NH4+) and one carbonate ion (CO3^2-). So, the total ion concentration is 3 (2 NH4+ ions + 1 CO3^2- ion).
d) iron (II) nitrate (Fe(NO3)2) dissociates into one iron (II) ion (Fe^2+) and two nitrate ions (2 NO3-). So, the total ion concentration is 3 (1 Fe^2+ ion + 2 NO3- ions).
e) potassium hydroxide (KOH) dissociates into one potassium ion (K+) and one hydroxide ion (OH-). So, the total ion concentration is 2 (1 K+ ion + 1 OH- ion).
Comparing the total ion concentrations, we can see that solution b) (one mole of sodium phosphate dissolved in 1.0L of solution) has the greatest concentration with 4 moles of ions.
To determine which solution contains the greatest total ion concentration, we need to consider the number of ions that are produced by each compound when dissolved in water.
a) Potassium chloride (KCl) dissociates into two ions: one potassium ion (K+) and one chloride ion (Cl-). So, the total ion concentration is 2 moles/L.
b) Sodium phosphate (Na3PO4) dissociates into four ions: three sodium ions (3Na+) and one phosphate ion (PO4-). So, the total ion concentration is 4 moles/L.
c) Ammonium carbonate (NH4)2CO3 dissociates into four ions: two ammonium ions (2NH4+) and one carbonate ion (CO3^2-). So, the total ion concentration is 4 moles/L.
d) Iron(II) nitrate (Fe(NO3)2) dissociates into three ions: one iron ion (Fe^2+) and two nitrate ions (2NO3-). So, the total ion concentration is 3 moles/L.
e) Potassium hydroxide (KOH) dissociates into two ions: one potassium ion (K+) and one hydroxide ion (OH-). So, the total ion concentration is 2 moles/L.
Comparing the total ion concentrations, we can see that b) sodium phosphate and c) ammonium carbonate both have a total ion concentration of 4 moles/L, which is the highest among the given choices. Therefore, either sodium phosphate or ammonium carbonate contain the greatest total ion concentration.