during a molar volume of oxygen experiment indicate how each of the following errors would affect (increase, decrease, or no change) your calculated value for the molar volume of O2 at STP.
1.) Your sample was not completely decomposed.
2.) After you finish heating sample & the system cooled to room temperature, you closed the clamp on tube D without re-equalizing the pressures inside and outside of the flask, The water in beaker E was 4 inches deep & the water in flask C was 2 inches deep.
It's difficult to know how to answer since I have no idea what the clamp on tube D is nor beaker E not to mention flask C.
1.) If the sample of oxygen is not completely decomposed during the experiment, it means that not all of the oxygen gas is released. This would result in a decrease in the calculated value for the molar volume of oxygen at STP. Since the oxygen gas is not fully released, the volume of gas collected would be less than it should be, leading to a smaller calculated molar volume.
2.) In this scenario, closing the clamp on tube D without re-equalizing the pressures inside and outside of the flask would impact the calculation of the molar volume. The difference in water levels in beaker E and flask C indicates a pressure difference. As a result, the pressure inside the flask is higher compared to the external environment. This would cause an increase in the calculated value for the molar volume of oxygen at STP. The higher pressure inside the flask means that the gas collected would occupy a smaller volume than it would under normal conditions, leading to a higher calculated molar volume.