19 terms

Curious_KyraPLUS

What is concentration measured in?

Molarity

Molarity

Concentration

M =

Mole of Solute/Liter of solution (n/v)

n =

m * v

v =

n / m

What is the salt water concentration of dissolving 2.7 moles of salt into 15 L of water?

0.18 M

What is molarity read as?

"____ molar solution"

Find the molarity of 250 mL solution containing 3.4 moles of NaF.

13.6 M

What must molity be represented with a capital M

lower case m = mass

How many grams of NaCl are required to make 0.500L of a 0.25 M solution?

7.3 g

How many grams of ammonium nitrate are in 335mL of 0.424M NH4NO3?

11.4 g

What is the molarity of a 450 mL solution with 45.67 grams of Mg3(P04)2 dissolved?

0.386 M

What volume of solution is needed to make a 12 M solution with 50.3 grams of KF?

0.072 L

Dilution

Adding solvent

When solutions are bought, they are bought as ____ concentrations.

high (12 M, 16M, 18M, etc)

Why would someone dilute a solution?

It's cheaper to make needed solutions than to always buy them.

Dilution Equation

M₁V₁ = M₂V₂ (Moles of solute before = Moles of solute after)

What volume of 5 M H2SO4 must be used to prepare 1.5L of a 0.10 M H2SO4 sol'n?

0.03 L

What volume of 16 M H2SO4 must be used to prepare 100mL of a 0.10M H2so soln?

0.625 mL