Monday December 3, 2012 (Discussion and Worksheet - Formula Mass vs. Molar Mass, Mole Quantities, Percent Composition)

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Monday December 3, 2012 (Discussion and Worksheet - Formula Mass vs. Molar Mass, Mole Quantities, Percent Composition)

How many grams of Ca, O, and H are in one mole of Ca(OH) 2 ? 40 g Ca, 32 g O, 2 g H What is the formula mass and the molar mass of the compound Ca(OH) 2 ? formula mass = 74 amu molar mass = 74 g/mol

Write and balance the chemical equation for the reaction of hydrogen gas and oxygen gas to produce water. If 10 grams of hydrogen gas reacts with 15 grams of oxygen gas, how many grams of water will be produced? 25 grams H 2 + O 2 æ H 2 O 22

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Assignment Currently Open Summative or Formative? Date IssuedDate Due Date Into GradeSpeed Final Day QUIZ 11S111/9 11/3012/14 QUIZ 12S211/16 11/3012/14 WS – Converting Between Grams, Moles, and Particles F211/3012/7 QUIZ 13S311/30 12/21

Worksheet Formula Mass vs. Molar Mass, Mole Quantities, Percent Composition We will do 1a, 2a, and 3a together. Your homework will be 1b-e, 2b,c, and 3b,c At this time, please do not go on to the section titled “Practice.”