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Radiator Coolant The coolant in an automobile radiator freezes at \(-39^{\circ} \mathrm{C}\) and boils at \(110^{\circ} \mathrm{C} .\) What are these temperatures on the Fahrenheit scale?

Silver and gold melt at \(962^{\circ} \mathrm{C}\) and \(1064^{\circ} \mathrm{C},\) respectively. Convert these two temperatures to the Kelvin scale.

Critical Temperature The discovery of new "high temperature" superconducting materials in the mid-1980s spurred a race to prepare the material with the highest superconducting temperature. The critical temperatures (T_)- the temperatures at which the material becomes superconducting - of three such materials are \(93.0 \mathrm{K}\) \(-250.0^{\circ} \mathrm{C},\) and \(-231.1^{\circ} \mathrm{F} .\) Convert these temperatures into a single temperature scale, and determine which superconductor has the highest \(T_{\mathrm{c}}\) value.

As air is cooled, which gas condenses first: \(\mathrm{N}_{2}, \mathrm{He},\) or \(\mathrm{H}_{2} \mathrm{O} ?\)

Liquid helium boils at \(4.2 \mathrm{K}\). What is the boiling point of He in "C?

Liquid hydrogen boils at \(-253^{\circ} \mathrm{C} .\) What is the boiling point of \(\mathrm{H}_{2}\) on the Kelvin scale?

A person has a fever of \(102.5^{\circ} \mathrm{F}\). What is this temperature in \(^{\circ} \mathrm{C} ?\)

Physiological temperature, or body temperature, is considered to be \(37.0^{\circ} \mathrm{C} .\) What is this temperature in ' \(\mathrm{F} ?\)

Record High The highest temperature ever recorded in the United States is \(134^{\circ} \mathrm{F}\) at Greenland Ranch, Death Valley, CA, on July \(13,1913 .\) What is this temperature on the Celsius and Kelvin scales?

Sodium chloride (NaCl) contains 1.54 g of Cl for every \(1.00 \mathrm{g}\) of \(\mathrm{Na} .\) Which of the following mixtures would react to produce sodium chloride with no Na or Cl left over? a. \(11.0 \mathrm{g}\) of \(\mathrm{Na}\) and \(17.0 \mathrm{g}\) of \(\mathrm{Cl}\) b. \(6.5 \mathrm{g}\) of \(\mathrm{Na}\) and \(10.0 \mathrm{g}\) of \(\mathrm{Cl}\) c. \(6.5 \mathrm{g}\) of \(\mathrm{Na}\) and \(12.0 \mathrm{g}\) of \(\mathrm{Cl}\) d. \(6.5 \mathrm{g}\) of \(\mathrm{Na}\) and \(8.0 \mathrm{g}\) of \(\mathrm{Cl}\)