MolarityMolarity

Objective: Students will understand Objective: Students will understand

a.a. solution terminologysolution terminology

b.b. The factors that affect solubilityThe factors that affect solubility

c.c. Calculate the molarity of solutionsCalculate the molarity of solutions

What is a Solution?What is a Solution?

A solution is a mixture of two or more A solution is a mixture of two or more substances (normally one is a liquid) substances (normally one is a liquid) where the composition is the same where the composition is the same throughout.throughout.

What are the components of a What are the components of a solution? solution?

Draw a solutionDraw a solution

The Polarity of WaterThe Polarity of Water

How Salt Dissolves in WaterHow Salt Dissolves in Water

The Ions Become Surrounded The Ions Become Surrounded

Factors that Affect SolubilityFactors that Affect Solubility

Nonpolar Solutes and WaterNonpolar Solutes and Water

The Structure of SugarThe Structure of Sugar

The Second Factor of SolubilityThe Second Factor of Solubility

TemperatureTemperatureNormally, you can dissolve more of a solid in hot Normally, you can dissolve more of a solid in hot

water than you can in cold water.water than you can in cold water.Cold water can dissolve more gasses Cold water can dissolve more gasses

substances than hot watersubstances than hot waterNow show the video..And this one

Terms You Should Know Terms You Should Know

Saturated solutions contain the maximum Saturated solutions contain the maximum amount of solute that it can dissolve amount of solute that it can dissolve

Supersaturated solutions have been Supersaturated solutions have been heated up and saturated and then cooled.heated up and saturated and then cooled.

Concentrated solutions contain more Concentrated solutions contain more solute than solventsolute than solvent

Dilute solutions contain much more Dilute solutions contain much more solvent than solute solvent than solute

What is PPM?What is PPM?

PPM stands for Parts Per MillionPPM stands for Parts Per Million If 3.00 grams of NaCl is dissolved into If 3.00 grams of NaCl is dissolved into

5000 grams of water, what is the PPM?5000 grams of water, what is the PPM?Setup as a ratioSetup as a ratio

Mercury and PPMMercury and PPM

If the allowable mercury level in milk is If the allowable mercury level in milk is 0.0030PPM, how many grams of mercury 0.0030PPM, how many grams of mercury can there be in 250 grams of milk?can there be in 250 grams of milk?

Define MolarityDefine Molarity

Molarity is the ratio of moles solute to liters Molarity is the ratio of moles solute to liters of solution.of solution.

To find the molarity of a solution first find To find the molarity of a solution first find the moles of solutethe moles of solute

then find the liters of solutionthen find the liters of solution then divide the moles by the litersthen divide the moles by the liters

Calculate the MolarityCalculate the Molarity

10.0 grams of NaOH is 10.0 grams of NaOH is dissolved in 500 mldissolved in 500 ml

Find the moles of solute.Find the moles of solute.Now find the liters of the Now find the liters of the

solutionsolution

Do some problems on the back of Do some problems on the back of the paperthe paper