M OLES AND M OLECULES. M OLAR M ASS OF A C OMPOUND Sum of the average atomic masses of all the atoms represented in a formula Measured in g/mole What.

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Presentation transcript:

M OLES AND M OLECULES

M OLAR M ASS OF A C OMPOUND Sum of the average atomic masses of all the atoms represented in a formula Measured in g/mole What is the formula mass of KClO 3 ?

M OLE P ROBLEMS How many grams are in 2.8 mole of MgCl 2 ? How many grams in 3.0 mole of NaCl? How many grams in.10 mole of carbon dioxide?

M OLE P ROBLEMS How many moles in 125g of BeS? How many moles in 450 g of CaCO 3 ? How many moles in 33.4 g of O 2 ?

M OLE P ROBLEMS How many molecules in.58 mole of CaCl 2 ? How many molecules in 3.0 mole of water?

M OLE P ROBLEMS How many moles is 1.35x10 24 molecules of water? How many moles is 5.6x molecules of HCl?

T WO S TEPS How many molecules in 450 g of CaCl 2 ? What is the mass of 2.5 x molecules of HBr?

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