Posted by Aline on Thursday, April 23, 2009 at 10:47pm.
I am trying to figure out how much 1.134 grams worth of gold will cost, if gold is at 380 dollars an ounce. I set up proportions like this:
380 doll./1.34 grams (how many grams are in an ounce) = BLANK/1.134 grams (mass of coins). I got $321.58. But this is incredibly unrealistic for gold to be $321.58 per gram. What did I do wrong?

Chemistry  Ms. Sue, Thursday, April 23, 2009 at 10:54pm
My sources state that 1 oz. = 28.349 grams

Chemistry  DrBob222, Friday, April 24, 2009 at 12:31am
I think gold, silver and jewels are sold by the troy ounce in which 12 troy ounces = 1 troy pound. The conversion is 31.1 grams = 1 troy oz.
380/oz x (1 oz/31.1 g) x (1.34 g) = ??

Chemistry  DrBob222, Friday, April 24, 2009 at 12:33am
I note you used 1.134 grams one place and 1.34 another. I used 1.34. Change according to what is correct.
Answer This Question
Related Questions
 College Chemistry/Lab Math  I think I have this problem figured out correctly, ...
 Science  One troy ounce of gold is worth $380. There are 33.8 grams per troy ...
 Physics  At the time this problem was written, the price of gold was $427 per ...
 science  Gold has sold for $523/ounce. How many milligrams of gold could you ...
 pre calc  A jeweler wants to make a 1 ounce ring composed of gold and silver, ...
 Science  Help!! How many atoms in 3.45 mL of water? (H2O only;mL=g) and If you ...
 calc  Nutrition Ruff, Inc. makes dog food out of chicken and grain. Chicken has...
 Math  1. A box of crackers has 24 grams of fat. the box contain 8 servings. ...
 problem solving  You purchased 18 karat gold chain that weights 15 grams. How ...
 Algebra  A pawn shop is selling gold for $12.00 an ounce and platinum for $9.00...
More Related Questions