Molarity

If you dilute 0.175 L of a 1.6 M solution of LiCl to 1.0 L, determine the new concentration of the solution.

• 0.28 M

• 0.28 L

• 0.11 L

• 0.11 M

Answer explanation

0.175 L x 1.6 M = 1.0 L x ?

You need to make 10.0 L of 1.2 M KNO₃. What molarity would the potassium nitrate solution need to be if you were to use only 2.5 L of it?

• 5 M

• 8.4 M

• 4.8 M

• 4.8 L

Answer explanation

? x 2.5 L = 1.2 M x 10.0 L

How many are unsaturated at 50 degrees with 50 grams of solute?

(a)  

What is a word that you would use to explain Molarity of a solution?

Tags

NGSS.HS-PS1-5

Which one will freeze the fastest?

• Pure Water

• Salt Water

• Neither

Tags

NGSS.MS-PS1-2

Which compound provides the most solute particles when dissolved in water?

• NaCl

• K3N

• BeS

• CaF2

1. 50g of Pb(NO3)2 in 50 degree water is ___________.

• Supersaturated

• Saturated

• Unsaturated

Tags

NGSS.MS-PS1-2

How many grams of LiBr (molar mass: 86.84 grams) are dissolved in a 1.5 M molar solution with a volume of 0.5 L?

• 0.75 g

• 86.84 g

• 0.75 moles

• 65.13 g

Answer explanation

Remember your train tracks to convert your moles to grams!!

How many grams of NaCl (molar mass: 58.44 grams) are needed to prepare 4.5 L of a 2.0 molar solution?

• 58.44 g

• 525.96 g

• 9 g

• 9 moles

Answer explanation

Remember to convert your moles to grams with your train tracks!!

1. 80 grams of CaCl2 at 10 degrees is _________.

• Supersaturated

• Saturated

• Unsaturated

Answer explanation

Above the line is Super, on the line is Sat, and Under the line is Unsat.

Tags

NGSS.MS-PS1-2