Molarity and Concentration

How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?

• 7.5 mL

• 15 mL

• 1333 mL

• 200 mL

How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution?

• 175 mL

• 250 mL

• 50 mL

• 5 mL

What would the molarity of a solution be if you took 10 mL of a 13M stock solution and made a 300 mL solution?

• 390M

• 230M

• 0.43M

• 0.26M

Which of the following is the Dilution Formula?

• V₁M₁ = V₂M₂

• M = m/V

• V = mT

• PV = nRT

What is the molarity of a solution that contains 5 moles of solute in 2 liters of solution?

• 2.5 M

• 5 M

• 10 M

• 0.4 M

What is the molarity of a solution prepared by dissolving 25.0g of HCl in enough water to make 150.0mL of solution?

Mathematical Equivalence

ON

What is the definition of molarity?

• The mass of a substance in grams

• The number of particles in a substance

• The number of moles of solute per liter of solution

• The volume of solvent in liters

Tags

NGSS.HS-PS1-5

Molarity concentration is abbreviated as _________

• MM.

• m.

• Mol.

• M.

Tags

NGSS.HS-PS1-5

Molarity = ​ (a)   of ​ (b)   / ​ (c)   of ​ (d)  

• solution

• liters

• solute

• moles

• grams

• solvent

• molar mass

• molarity

Calculate the molarity of a 0.25 mol in 250mL solution

Mathematical Equivalence

ON