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How do you handle the calculations and data for the gas law lab (molar mass of butane)?

How do you handle the calculations and data for the gas law lab (molar mass of butane)?. February 27. Finishing up the Gas Unit. Data. Calculations: Trial 1. Calculate pressure of gas sample: P T = P gas + P water 759.0 mmHg = P gas - 23.1 mmHg P gas = 735.9 mmHg or 0.9683 atm

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How do you handle the calculations and data for the gas law lab (molar mass of butane)?

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  1. How do you handle the calculations and data for the gas law lab (molar mass of butane)? February 27

  2. Finishing up the Gas Unit Data Calculations: Trial 1 Calculate pressure of gas sample: PT = Pgas + Pwater 759.0 mmHg = Pgas- 23.1 mmHg Pgas = 735.9 mmHg or 0.9683 atm Calculate mass of butane in gas sample: Mass of butane = Initial mass – Final mass Calculate moles of butane in gas sample: PV = nRT Calculate molar mass for this Trial: Mass of butane / Moles of butane Click on number for water vapor table.

  3. Finishing up the Gas Unit Data Calculations: Trial 1 Calculate pressure of gas sample: PT = Pgas + Pwater Calculate mass of butane in gas sample: Mass of butane = Initial mass – Final mass 16.9523 g – 16.8501 g = 0.1002 g Calculate moles of butane in gas sample: PV = nRT Calculate molar mass for this Trial: Mass of butane / Moles of butane

  4. Finishing up the Gas Unit Data Calculations: Trial 1 Calculate pressure of gas sample: PT = Pgas + Pwater 759.0 mmHg = Pgas + 23.1 mmHg Pgas = 735.9 mmHg or 0.9683 atm Calculate mass of butane in gas sample: Calculate moles of butane in gas sample: PV = nRT 0.9863 atm ( 0.04780 L) = n (.0821 Latm/(molK) 297.5K 0.9863 X 0.04780 / 0.0821/297.5 = 0.001930 moles Calculate molar mass for this Trial: Mass of butane / Moles of butane

  5. Finishing up the Gas Unit Data Calculations: Trial 1 Calculate pressure of gas sample: Calculate mass of butane in gas sample: Mass of butane = Initial mass – Final mass 16.9523 g – 16.8501 g = 0.1022 g Calculate moles of butane in gas sample: PV = nRT 0.001930 moles Calculate molar mass for this Trial: Mass of butane / Moles of butane 0.1022 g / 0.001930 = 52.95 g/mol

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