Soxteacher

swim, chem, baseball, I talk with my hands

CH12 – Back and Forth

Dominik_Smole

Date

  • P4 – Tuesday, February 6th
  • P5 – Tuesday, February 6th
  • P7 – Tuesday, February 6th

New Idea – Percent Composition (formula to mass)

  • Assume 1 mole sample
  • Moles –> Mass (each element)
  • Total the mass
  • Divide each mass by total

New Idea – Empirical Formula (mass to formula)

  • Assume 100 gram sample
  • percent to grams
  • gram to moles
  • divide by smoles
  • multiply until whole
  • <known molar mass>

Examples

  • practice

Homework

  • Ch. 3 (79, 83, 84)

Information

This entry was posted on February 5, 2018 by in 1718 and tagged , , .

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