Question

Determine the boiling point of water at 620 nun Hg

A pipet delivers 9.98 g of water at 20°C. What volume does the pipet deliver?

A pipet delivers 10.4, 10.2, 10.8, and 10.6 mL in consecutive trials. Find the mean volume and the average deviation from the mean.

A 141-mg sample was placed on a watch glass that weighed 9.203 g. What is the weight of the watch glass and sample in grams?

(a) Using the defined freezing and boiling points of water, make a plot of degrees Fahrenheit versus degrees Celsius on the graph paper provided. (b) Determine the Celsius equivalent of 40°F using your graph. The relationship between these two temperature scales is linear (i.e., it is of the form y = mx + b). Consult Appendix B regarding linear relationships and determine the equation that relates degrees Fahrenheit to degrees Celsius. (c) Compute the Celsius equivalent of 40°F using this relationship

. A man who is 5 ft 8 in. tall weighs 160 lb. What is his height in centimeters and his mass in kilograms?

Drug medications are often prescribed on the basis of body weight. The adult dosage of Elixophyllin, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 150-lb person.

Carry out the following operations, and express the answer with the appropriate number of significant figures and units. (a) (5.231 nun)(6.1 nun); (b) 72.3 g/1.5 mL; (c) 12.21 g + 0.0132 g; (d) 31.03 g + 12 mg.