Problem 149
The mean distance from the earth to the sun is \(9.3 \times\) \(10^{7} \mathrm{mi} .\) What is this distance in kilometers? in centimeters?
Problem 150
Given that one gross \(=144\) items, how many pencils are contained in 6 gross?
Problem 151
Convert the following temperatures to kelvins. a. \(0^{\circ} \mathrm{C}\) b. \(25^{\circ} \mathrm{C}\) c. \(37^{\circ} \mathrm{C}\) d. \(100^{\circ} \mathrm{C}\) e. \(-175^{\circ} \mathrm{C}\) f. \(212^{\circ} \mathrm{C}\)
Problem 152
Carry out the indicated temperature conversions. a. \(175^{\circ} \mathrm{F}\) to kelvins b. \(255 \mathrm{K}\) to Celsius degrees c. \(-45^{\circ} \mathrm{F}\) to Celsius degrees d. \(125^{\circ} \mathrm{C}\) to Fahrenheit degrees
Problem 153
For the masses and volumes indicated, calculate the density in grams per cubic centimeter. a. mass \(=234 \mathrm{g} ;\) volume \(=2.2 \mathrm{cm}^{3}\) b. mass \(=2.34 \mathrm{kg} ;\) volume \(=2.2 \mathrm{m}^{3}\) c. mass \(=1.2\) lb; volume \(=2.1 \mathrm{ft}^{3}\) d. mass \(=4.3\) ton; volume \(=54.2 \mathrm{yd}^{3}\)
Problem 154
A sample of a liquid solvent has density \(0.915 \mathrm{g} / \mathrm{mL}\) What is the mass of \(85.5 \mathrm{mL}\) of the liquid?
Problem 155
An organic solvent has density \(1.31 \mathrm{g} / \mathrm{mL}\). What volume is occupied by \(50.0 \mathrm{g}\) of the liquid?
Problem 156
A solid metal sphere has a volume of \(4.2 \mathrm{ft}^{3}\). The mass of the sphere is 155 lb. Find the density of the metal sphere in grams per cubic centimeter.
Problem 157
A sample containing \(33.42 \mathrm{g}\) of metal pellets is poured into a graduated cylinder initially containing 12.7 mL of water, causing the water level in the cylinder to rise to \(21.6 \mathrm{mL}\). Calculate the density of the metal.
Problem 158
Convert the following temperatures to Fahrenheit degrees. a. \(-5^{\circ} \mathrm{C}\) b. \(273 \mathrm{K}\) c. \(-196^{\circ} \mathrm{C}\) d. \(0 \mathrm{K}\) e. \(86^{\circ} \mathrm{C}\) f. \(-273^{\circ} \mathrm{C}\)
