Introductory Chemistry For Today
Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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The density of gold metal is 19.3 g/cm3, while that for silver is 10.5 g/cm3. Suppose you had the same size bar of each metal, with the dimensions 2.00 in x 10.0 cm x 760 mm. Volume of a cube is height x length x width. Which bar would have the greatest mass? Which bar contains the greater number of atoms? If the two bars were melted and mixed together to form an alloy (or mixture) what would be the total mass?
A one carat diamond which is made of the element carbon, weighs 0.200 grams. The average mass of a carbon atom is 12.0 atomic mass units(Amu). If 1 amu= 1.661*10^-24 grams, how many carbon atoms are present in a one carat diamond?
Bromine (atomic mass 79.904 amu) consists of 2 different naturally occurring isotopes, Br-79 (atomic mass = 78.9193 amu) and Br-81 (80.9163 amu). If a student measures out 35.47 mL of Br2(l), which has a density = 3.119 g/mL), calculate the number of atoms of Br-81 in the given volume of bromine liquid.
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