A. Identify the impact of each experimental error on the value of the pressure-volume product (PV). You neglect to add in the volume of gas in the syringe tip in some of your calculations.
Choose...PV value too high OR PV value too low
You move the set-up to a much warmer part of the room between measurements.
Choose...PV value too high OR PV value too low
The syringe plunger is stuck and doesn't move down when weight is added to increase the pressure.
Choose...PV value too high OR PV value too low
B. How many moles of oxygen gas are present if the gas has a volume of 765.2 mL and pressure of 1.65 atm at 56.1 ∘C∘C? Assume that the oxygen behaves as an ideal gas.
C. Suppose you produce 0.0458 g of N2NX2 gas with a volume of 0.0429 L and a pressure of 0.986 atm at 298 K. Based on the experimental data, what is the value of the gas constant RR?
D. Suppose you experimentally calculate the value of the gas constant RR as 0.0889 L-atm/mol-K. The known value is 0.0821 L-atm/mol-K. What is the percent error of your experimentally determined RR?
E. Suppose you are collecting a gas over water at 23 oC and obtain a pressure reading of 794.5 mm Hg. If the vapor pressure of water is 21.1 mm Hg at the collection temperature, what is the pressure of the collected gas?
F. The reaction of magnesium with hydrochloric acid produces hydrogen gas.
Mg(s)+2HCl(aq)⟶H2(g)+MgCl2(aq)Mg(s) +2HCl(aq)⟶HX2(g)+MgClX2(aq)
If you react 0.128 g of Mg with excess acid, what volume of hydrogen gas (in L) will be produced at 0.909 atm and 293 K?