In this exercise, the number of moles of a gas and the corresponding uncertainty in the value are calculated from measurements of pressure (from a mercury manometer), volume (from a calibrated flask) and temperature (from a mercury thermometer) Moles of gas can be calculated by n = pV / RT where R = 0.08206 L middot atm / mol middot K and 1 atm = 760 torr. From the following measurements calculate the number of moles of gas, n, keeping track of units throughout the calculation: Calculate the uncertainty in the moles of gas, s(n), keeping track of units throughout the calculation: State your final value for n (include uncertainty and units, and use the correct number of significant figures): Identify the main source of experimental error. Justify your answer.
Show transcribed image textIn this exercise, the number of moles of a gas and the corresponding uncertainty in the value are calculated from measurements of pressure (from a mercury manometer), volume (from a calibrated flask) and temperature (from a mercury thermometer) Moles of gas can be calculated by n = pV / RT where R = 0.08206 L middot atm / mol middot K and 1 atm = 760 torr. From the following measurements calculate the number of moles of gas, n, keeping track of units throughout the calculation: Calculate the uncertainty in the moles of gas, s(n), keeping track of units throughout the calculation: State your final value for n (include uncertainty and units, and use the correct number of significant figures): Identify the main source of experimental error. Justify your answer.