A student graphs the data collected in the drop-volume determination done with a buret All the points except one fill on a straight line. The last point is significantly above the straight line on the...

A student graphs the data collected in the drop-volume determination done with a buret All the points except one fill on a straight line. The last point is significantly above the straight line on the graph. Which of the following would account for this? a. The student miscounted the drops and actually delivered more drops than the number recorded in Table 5 for that point. b. The student miscounted the drops and actually delivered fewer drops than the number recorded in Table 5 for that point. C. The buret was misread at that point. The recorded value was less than the correct value. d. More than one response is correct. Explain your answer 9. of known volume. The reported densily is found by the instructor to be significantly higher than it should be. Which of the following experimental errors could account for this result? A student detemines the densily of an unknown liquid by weighing a sample a. The pipet used was filled to a level above the calibration mark. b. The balance was read incorrectly, and the recorded sample mass was lower than the true sample mass. C. A part of the sample was spilled from the beaker befor it was weighed. Explain your answer 7. A student determines the density of a rubber stopper by putting it into a graduated cylinder of water as you did in Part 7. The stopper sinks to the bottom of the cylinder. The reported density of the stopper is 0.12 g/ml. This result a. Might be correct. b. is probably correct C. Cannot possibly be correct. Explain your answer