Unit 1: Basic Concepts of Chemistry
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Unit 1: Basic Concepts of Chemistry. Molarity, solutions, solution stoichiometry. Unit 1: Basic Concepts of Chemistry. Solution Concentrations. Molarity, molarity problems.

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Unit 1: Basic Concepts of Chemistry

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Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Molarity, solutions, solution stoichiometry


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Solution Concentrations

Molarity, molarity problems

If 25.3 g of Na2CO3 is dissolved to make a 250 mL sol’n, what is the molarity of the Na2CO3? The Na+ ions? The CO32- ions?

Dilutions

0.236 M Fe(NO3)3

Dilute up to 100 mL. New molarity?

100 mL


Unit 1 basic concepts of chemistry

Unit 1: Basic Concepts of Chemistry

Very Basic pH

Acid dissociation, H3O+ formation, pH concept and formula

A nitric acid sol’n has a molarity of 0.0056 mol/L. What is the pH?

Solution Stoichiometry

Remember – moles always solve stoichiometry problems.

CaCO3 + 2 HCl CaCl2 + H2O + CO2

What mass of calcium carbonate is needed to react completely with 25 mL of 0.75 M HCl?


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