THURSDAY 3/27/14 MOLE-PARTICLE & MOLE- VOLUME CONVERSIONS.

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Aim: How to convert from moles to volume and vice versa

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Presentation transcript:

THURSDAY 3/27/14 MOLE-PARTICLE & MOLE- VOLUME CONVERSIONS

MOLES AND ATOMS/MOLECULES Avogadro’s Number (6.02x10 23 particles/mol) allows us to convert between moles and atoms/molecules We use the unit “atoms” when we have individual atoms (H, He, C, N, etc.) and “molecules” when we have more than one atom (H 2, CO 2, Li 2 O, etc.)

EXAMPLE: MOLE-PARTICLE How many atoms are in 5.59mol calcium?

MOLES OF GAS AND VOLUME Avogadro said that one mole of gas at standard temperature and pressure (STP) take up 22.4L eature=relmfu eature=relmfu We can easily convert between moles and liters.

EXAMPLE: MOLE-VOLUME How many moles of CH 4 are contained in 17.2L?

YOUR JOB Complete the mixed stoichiometry worksheet Mini-Quiz when 10 minutes of class left! (gram-mole)