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Bell Work: Chalk Lab First, please turn in chalk lab!

This guide explores the chemical properties of chalk, primarily composed of calcium carbonate (CaCO₃). We delve into calculating the molar mass of chalk, which totals 100.09 g/mol. Additionally, we examine the composition, determining how many grams of carbon, calcium, and oxygen are present in one mole of chalk. This resource also covers the percent composition of calcium carbonate, calculating the percentage of each element: calcium (40%), carbon (12%), and oxygen (48%). Engage with this information to deepen your understanding of chalk's chemical structure.

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Bell Work: Chalk Lab First, please turn in chalk lab!

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Presentation Transcript

  1. Bell Work: Chalk LabFirst, please turn in chalk lab! What was the formula for chalk? (calcium carbonate) What was the molar mass of the chalk? How many grams of carbon are in one mole of chalk? (part of molar mass from carbon) How many grams of calcium are in one mole of chalk? How many grams of oxygen are in one mole of chalk?

  2. Percent composition What percent of a compound is a certain element? What % of calcium carbonate is calcium? What % of calcium carbonate is carbon? What % of calcium carbonate is oxygen?

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