Precious metals and gems are measured in Troy weights in the English system. Use the unit relationship given below to perform the requested calculations (A) what is the mass of 1.0 Troy ounces in grams? (B) The density of gold is 19.3g/cm^3. What is the volume of 12.5 carats of gold in mL? (C) a thief steals 531 pennyweights of silver. How many moles is that? (D) A wedding ring contains 2.56 x 10^22 atoms of diamond. How much are the diamonds in the ring worth if a 1-carat diamond costs $7600.0 ?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Precious metals and gems are measured in Troy weights in the English system. Use the unit relationship given below to perform the requested calculations (A) what is the mass of 1.0 Troy ounces in grams? (B) The density of gold is 19.3g/cm^3. What is the volume of 12.5 carats of gold in mL? (C) a thief steals 531 pennyweights of silver. How many moles is that? (D) A wedding ring contains 2.56 x 10^22 atoms of diamond. How much are the diamonds in the ring worth if a 1-carat diamond costs $7600.0 ?
24 grains (exact) = 1 pennyweight (exact)
20 pennyweight (exact) = 1 troy ounce (exact)
12 troy ounces (exact) = 1 troy pound (exact)
1 grain (exact) = 0.0648 grams
1 carat (exact) = 0.200 grams
Transcribed Image Text:24 grains (exact) = 1 pennyweight (exact) 20 pennyweight (exact) = 1 troy ounce (exact) 12 troy ounces (exact) = 1 troy pound (exact) 1 grain (exact) = 0.0648 grams 1 carat (exact) = 0.200 grams
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