Electrolytes and Ions in Solution

A solute that does not form ions or conduct electricity in solution.

• nonelectrolyte
• weak electrolyte
• strong electrolyte
• partial electrolyte

A 2 M solution is made by dissolving...

• 2 mol of solute in 1 L of solvent
• 1 mol of solute in 2 L of solvent
• 2 mol of solute in 1 mol of solvent
• 2 mol of solute in 1 kg of solvent

If an electrical current can run through a solution, it is said to contain

• magic.
• nonelectrolytes.
• electricity.
• electrolytes.

Tags

NGSS.HS-PS2-5

A solution consists of a

• solute dissolved in a solvent.
• solvent dissolved in a solute.

Which represents the dissociation of ZnCl₂?

• ZnCl_2(s) → Zn²⁺_(aq) + Cl^-_(aq)
• ZnCl_2(s) → Zn⁺_(aq) + 2Cl^-_(aq)
• ZnCl_2(s) → Zn²⁺_(aq) + 2Cl^-_(aq)
• ZnCl_2(s) → Zn⁺_(aq) + Cl^-_(aq)

Which represents the dissociation of Ca(NO₃)₂?

• Ca(NO₃)_2(s) →Ca⁺_(aq) + 2NO₃^- _(aq) 
• Ca(NO₃)_2(s) → Ca²⁺_(aq) + 2NO₃^- _(aq) 
• Ca(NO₃)_2(s) →Ca²⁺_(aq) + NO₃^- _(aq) 
• Ca(NO₃)₂ →Ca⁺ + 2NO₃^- 

A strong acid 

• completely dissociates in water.
• partly dissociates in water.
• doesn't dissociate in water.
• has a really high pH.

How many moles of Na₂SO₄ is needed to make 2.5 L of 2.0 M solution?

• 5 moles
• 1 moles
• 1.25 moles
• 0.80 moles

Molarity is measured in

• moles per kg
• moles per L
• moles per kJ
• moles per mL

What is the molarity of 3 mole of hydrochloric acid in 3 L of water. 

• 3 M
• 1 M
• 6 M
• 9 M