Molarity Lesson

What is the molarity of the diluted solution when 1.00 L of a 0.250-M solution of Fe(NO₃)₃ is diluted to a final volume of 2.00 L?

What is the molarity of a solution formed by dissolving 0.45 mol of potassium hydroxide (KOH) in enough water to form 0.674 L of solution? Use the appropriate formula to solve for the missing variable.

• 0.30 M

• 0.67 M

• 1.49 M

How many moles of BaI₂ are present in 0.250 kg of H₂O if the concentration is 0.3 m?

• 0.075 mol

• 0.83 mol

• 1.25 mol

Tags

NGSS.HS-PS1-5

Molarity is measured in _____.

• moles per g.

• mols per L.

• moles per mm.

• moles per mL.

Tags

NGSS.HS-PS1-5

Which equation is used to find molarity?

• Moles solute/L solution

• Moles solute/kg solution

• Moles solute/kg solvent

• Grams solute/L solution

What are the units of molarity?

• M

• m

• Ml

• Mr

Tags

NGSS.HS-PS1-5

Calculate the molarity of the following solution: 1.0 mole of KCl in .75 L of solution.

• 0.750 M

• 99 M

• 1.3 M

• 2.0 M

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to .5 L?

• 300. M

• 31.3 M

• 3.13 M

• 1.56 M

Molarity is measured in

• moles per kg

• mols per L

• moles per kJ

• moles per mL

The _____ is the thing being dissolved.

• solute

• solvent