WARM-UP 2/20/15 You will need a calculator (no phone) today. If you need one, trade something for one. If you measured the mass of the beaker with the.

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WARM-UP 2/20/15 You will need a calculator (no phone) today. If you need one, trade something for one. If you measured the mass of the beaker with the sample of copper to be 41.7 g and the mass of the beaker by itself was 4.9 g, what is the mass of the sample? How many moles of copper are there in this sample?

Calculate moles from atoms and atoms from moles 2/20/15 Objective Calculate moles from atoms and atoms from moles 2/20/15 Agenda Warm-up Calculator Practice Moles and Atoms Independent Work Time

Calculator Practice Put into calculator: 93 x 4.24 x 1032 Put into calculator: 9.28 x 1023 6.02 x 1023

Molar Mass Lab – 1st Chart Compound Chemical Formula Molar Mass 1 Sodium hydroxide NaOH 39.997 g/mol 2 Zinc (II) nitrate 3 Copper 4 Iron 5 Sodium iodide 6 Copper (II) nitrate 7 Potassium chlorate 8 Lead (II) nitrate 9 Zinc 10 Sodium nitrate

Molar Mass Lab – 2nd Chart Chemical Formula Beaker Mass (g) Measured Mass (g) Compound Mass (g) Moles of Compound NaOH 5.92

Measuring Matter II worksheet Molar Mass Lab charts (2) End of Class Measuring Matter II worksheet Molar Mass Lab charts (2) 3) Chemical Reactions Checklist Resubmit by Friday 2/20/15