The two error analysis questions on the bottom, no calculation

Error Analysis:

1. In part A, what if the water in the flask had cooled down by 2.0 C before you measured it? That is, your temperature should have been 2.0 C more than the temperature you used. How would this have affected the molar mass you got for Zn? Remember that the temperature was used both to determine the water vapor pressure and to calculate the moles of gas. Go through the calculations again with this adjusted higher temperature and report your results for pressure of H2 gas, moles of Zn and molar mass of Zn. (You do not have to show the calculations, just report these three results.) Comment on whether the difference was higher or lower and what percent change you saw for each of these three numbers.

2. In part B, what if you had not completely filled the flask with methane? That is, what if your mass of flask, stopper, and methane was actually the mass of the flask, stopper, and a mixture of methane and air? How would this have affected your mass of methane and your molar mass of methane? Comment on whether each change would be higher or lower than the true value.