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# 1 mole = particles - PowerPoint PPT Presentation

1 mole = particles : Avogadro’s number Particles = molecules Molar mass of each element can be found on the periodic table. The unit is in grams/mol or g/mol. Calculate the molar mass of mercury (II) sulfate.

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Particles = molecules

Molar mass of each element can be found on the periodic table. The unit is in grams/mol or g/mol.

Calculate the molar mass of mercury (II) sulfate.

p.326. #31, A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g. (a) How many Na+ ions are present? (b) How many SO3-2 ions are present? (c ) What is the mass in grams of one formula unit of Na2SO3?

• Empirical formula is the __________ ratio of elements in a compound.

• Ionic compound: Is the empirical formula the correct formula? (please do not answer and let the rest of the class some time to think)

• Molecular compound: is the empirical compound the correct formula?

• The relationship of molecular formula and empirical formula

• Combustion reaction: combustion, burns ibuprofen yields a molar mass of 206 g/mol and a percent composition of 75.7% C, 8.80% H and 15.5% O.

• You need hydrocarbon O2

• The process produces CO2 and H2O, both in __________ state

• Write the balanced equation of the combustion of liquid C6H13OH

• Synthesis: synthesis, combination, composition ibuprofen yields a molar mass of 206 g/mol and a percent composition of 75.7% C, 8.80% H and 15.5% O.

• Simple → complex or elements → compound

• Write the balanced synthesis equation of magnesium bromide

• Decomposition: decomposition ibuprofen yields a molar mass of 206 g/mol and a percent composition of 75.7% C, 8.80% H and 15.5% O.

• Complex → simple or compound → elements

• Write the balanced decomposition equation of magnesium bromide.

• Single Replacement Reaction ibuprofen yields a molar mass of 206 g/mol and a percent composition of 75.7% C, 8.80% H and 15.5% O.

• Metal(A) + Ionic solution → Ionic solution + Metal(B)

• Write the balanced equation of nickel added to the solution of magnesium chloride.

• Double Replacement ibuprofen yields a molar mass of 206 g/mol and a percent composition of 75.7% C, 8.80% H and 15.5% O.

• Solution + solution → cations change partners (thoughts: can a cation change partner with an anion?)

• Write the balanced equation of adding the solution of sodium phosphate into the solution of manganese (II) chloride.

• Write complete ionic equation.

• Write net ionic equation.

• Dissociation equation: ibuprofen yields a molar mass of 206 g/mol and a percent composition of 75.7% C, 8.80% H and 15.5% O.

• Solid ionic compound is put into water. Ionic compound will dissociate into cations and anions.

• Write the balanced equation of when calcium iodide is put into water.