Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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The density of silver is 10.5 g/cm³. What is the mass of a silver bar (in gms) that measures 0.1000 m x 0.0500 mx 0.0100 m?
Volume of a bar = I xwxh
Express your answer in scientific notation rounded to three significant figures.
What is the volume in liters of 5.085 pounds of gold? The density of gold is 1.93 g/cm^3. Express in decimal form.
What is the volume in liters of 5.085 pounds of gold? The density of gold is 19.3 g/cm3. Please express in decimal form, not scientific notation.
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- The density of a solution of sulfuric acid is 1.285 g/cm3, and it is 38.08% acid by mass. Calculate the volume of the acid solution (in mL) you need to supply 125 g of sulfuric acid.arrow_forwardA sample of vermilion-colored mineral was weighed in air, then weighed again while suspended in water. An object is buoyed up by the mass of the fluid displaced by the object. In air, the mineral weighed 18.49 g; in water, it weighed 16.21 g. The densities of air and water are 1.205 g/L and 0.9982 g/cm3, respectively. What is the density of the mineral?arrow_forwardFor these questions, be sure to apply the rules for significant figures. a You are conducting an experiment where you need the volume of a box; you take the length, height, and width measurements and then multiply the values together to find the volume. You report the volume of the box as 0.310 m1. If two of your measurements were 0.7120 m and 0.52145 m, what was the other measurement? b If you were to add the two measurements from the first part of the problem to a third length measurement with the reported result of 1.509 m, what was the value of the third measurement?arrow_forward
- A listing of a house for sale states that there are 5bedrooms, 4000 ft2 of living area, and a living room with dimensions 1718.5 ft. How many significant figures are there in each quantity? (Your answer may include the words ambiguous and exact.)arrow_forwardThe density of helium at standard temperature and pressure is 0.166 g/L. What volume in liters would 3100 mg of helium gas occupy? Express your answer with an appropriate number of significant figures.arrow_forwardA piece of cardboard is 12.0 cm long and 6.3 cm wide. What is the area of this piece of cardboard in square millimeters? Enter your answer in the space provided WITHOUT units. Make sure to round your answer to the correct number of significant figures. Please give the number as a normal number, do not use scientific notation. (In example: a normal number = 4300 instead of the number being in scientific notation as = 4.3 X 103)arrow_forward
- What is the volume in liters of 5.085 pounds of gold? The density is 19.3 g/cm^3. Express in decimal form.arrow_forwardA piece of cardboard is 12.0 cm long, 6.3 cm wide and 0.75 millimeters thick. What is the volume of this piece of cardboard in cubic meters? Enter your answer in the space provided WITHOUT units. Make sure to round your answer to the correct number of significant figures. Please give the number as a normal number, do not use scientific notation. (In example: a normal number = 4300 instead of the number being in scientific notation as = 4.3 X 103)arrow_forwardOsmium (Os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and in kilograms of an Os sphere 15 cm in diameter, about the size of a grapefruit. Enter your answers in scientific notation.arrow_forward
- The moon orbits the sun with a velocity of 2.2 x 104 miles per hour. What is this velocity in meters per second? Pay attention to significant figures.arrow_forwardA chemistry student needs 55.0 mL of tetrahydrofuran for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of tetrahydrofuran is 0.889 g.cm -3 Calculate the mass of tetrahydrofuran the student should weigh out. Round your answer to 3 significant digits. ?arrow_forwardA chemistry student needs 25.0 mL of ethanolamine for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of ethanolamine is 1.02 g*cm^-3. Calculate the mass of ethanolamine the student should weigh out. Be sure your answer has the correct number of significant digits.arrow_forward
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