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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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units of g/mL? Do not enter “g/mL" as part of your answer."
Transcribed Image Text:A 2.50 gram rectangular object has measurements of 22.0 mm, 13.5 mm, and 12.5 mm. 1 cm3=1 mL. What is the object's density in
units of g/mL? Do not enter “g/mL" as part of your answer.
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- An object weighs 9.0330 g. When the object is put into a graduated cylinder that contains 24.9 mL of water, the water levels rises to 30.2 mL. Calculate the density of the object. Hint - first figure out the volume, then calculate density. Choose the answer with the appropriate significant figures and units.arrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 2.0947 cm X 1.3 cm = 93. mol L X 47. L 793.92 m 55.88 s = = 0 2 cm mol m 0-²- S x10 X Sarrow_forwardPlease don't provide handwriting solutionarrow_forward
- The density of mercury, the only metal that is a liquid at room temperature is 13.6 g/mal. Calculate the mass of 5.50 mL of the liquid.arrow_forwardThe following densities resulted from a student's measurements. What is the mean of their densities? Include units in your answer. Density 1 = 8.51 g/mL Density 2 = 9.97 g/mL Density 3 = 9.07 g/mLarrow_forwardSuppose you are trying to find the volume of a box based on the given measurements for the length, width, and height of the box, where the height was measured in two parts. length, l = 2.20 in width, w = 3.71 in height, h = 10.4 in + 1 in Calculate the height, ℎ, of the box, first keeping all digits, then rounding to the proper number of significant figures. unrounded h = ____in rounded h =____ in Calculate the volume (V) of the box using V =l x w x h. Round to the proper number of significant figures. v=_____in3arrow_forward
- Calculate the volume of 42.0 kg of a substance whose density is 8.96 g/mL. Express your answer in milliliters using the correct number of significant figures. Do not enter your answer using scientific notation.arrow_forwardWhen converting between metric units, use the prefixes to help you determine the magnitude of a value. The prefix kk indicates kilo, 1000. Therefore 1000 gg = 1 kgkg. A 25.0 kgkg iron weightlifting plate has a volume of 3180 cm3cm3 . What is the density of the iron plate in g/cm3g/cm3?arrow_forwardHow many significant figures should your result contain? What is the calculated density? Express your answer to the correct number of significant figures.arrow_forward
- In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun, but occupying less space than our moon. Suppose that one of these black holes has a mass of 8×103 suns and a radius equal to one-half the radius of our moon. What is its density in grams per cubic centimeter? The mass of the sun is 2.0×1030kg and the radius of the moon is 2.16×103mi. (Volume of a sphere =43πr3.)arrow_forwardWhen you perform the following operations, how many significant figures should your answer have? (2.000 cm^ 3 *15.35 g/cm^ 3 )+200.1 g=arrow_forwardIn 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun, but occupying less space than our moon. Suppose that one of these black holes has a mass of 1×10^3 suns and a radius equal to one-half the radius of our moon. What is its density in grams per cubic centimeter? The mass of the sun is 2.0×10^30 kg and the radius of the moon is 2.16×10^3 mi (Volume of a sphere =4/3πr^3)arrow_forward
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