Question: 1. A student set up an experiment to test the accuracy of an uncalibrated thermometer by measuring the boiling point of water. The student observed

 1. A student set up an experiment to test the accuracy

1. A student set up an experiment to test the accuracy of an uncalibrated thermometer by measuring the boiling point of water. The student observed that the atmospheric pressure was 748.6mmHg. The student followed all standard laboratory procedures, including the proper technique for measuring the boiling point of a small sample of liquid by measuring the temperature of the refluxing vapor above the liquid. The student observed a boiling point of 101.2C. The student used the information in Table 6.1 of the textbook and the normal boiling point of water to determine the calibration correction for the thermometer. A week later, the student used the newly calibrated thermometer to measure the boiling point of an unknown hydrocarbon. The student recorded an atmospheric pressure of 755.2mmHg and an observed boiling point of 86.5C. The student used the calibration correction to determine the actual boiling point of the unknown. The student used the fact that "Boiling points decrease about 0.5C for every 10 mmHg decrease in atmospheric pressure." to calculate the approximate normal boiling of the unknown. a. Calculate the actual boiling point of the water. b. Calculate the magnitude of calibration correction and indicate if it should be added to or subtracted from future measurements. c. Calculate the actual boiling point of the unknown. d. Calculate the approximate normal boiling point of the unknown

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!