Molarity

True or False? The higher the concentration of a solution the less solutes it has in it.

• True
• False

Tags

NGSS.HS-PS1-5

Calculate the molarity of the following solution: 1.0 mole of KCl in 750.0 mL of solution.

• 0.75 M

• 0.0013 M

• 1.3 M

• 2.0 M

What is the molarity of 40.0 g of NaCl (MM=58.45) in 380. mL of solution?

• 1.80 M

• 0.105 M

• 105 M

• 0.00180 M

If you have 0.0450 L of 0.465 M potassium bromide. How many moles of potassium bromide are present?

• 10.3mol

• 0.2000 mol

• 0.0968 mol

• 0.0209 mol

Which sweet tea would you expect to taste the sweetest?

• 1.0 M

• 3.0 M

• 3.5 M

• 2.9 M

What is the molarity of a solution made by adding 1.565 moles of Pb(NO₃)₂ to 500. mL?)

• 300. M

• 0.00313 M

• 3.13 M

• 1.56 M

How many moles are needed to make 2.5 L of a 3.8 M solution? 

• 9.5 mol
• 0.66 mol
• 1.5 mol
• 15 mol

Tags

NGSS.HS-PS1-7

What is the formula for molarity?

• moles/grams
• moles/kilograms
• moles/milliliters
• moles/liters

The ___ is the thing being dissolved

• solute
• solvent

What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 L of water?

• 4.5 M

• 0.22 M

• 0.50 M

• 2.0 M