# Chemistry Honors – Class 4

Dates

- Periods A, C, D – Monday, January 13th

Significant Figures & Calculations

- Review Homework
- scientific notation
- review calculation rules
- unit conversion

- Practice
- Equation: PV = nRT
- Known Quantities
- P = 750 mmHg
- V = 987.3 mL
- R = 0.08206 Latm/molK
- 23.5°C

- Conversions
- 760.0 mmHg = 1.000 atm
- T (K) = T (°C) + 271.15

- Determine: “n”

Homework

- Study for Quick quiz (conversion / SF)
- Be sure and review in-class problem (PV = nRT)

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