Bismuth Metal Pound
Posted on June 11th, 2009 by admin
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Bismuth Metal Pound
Confusing chemistry question. Help would be great!?
A) What is the mass of Au in a 15.0 g earring if it is made of 14 karat gold? 14 karat gold is 58% gold, the remainder being copper and silver. B) Pewter, which is used to make utensils and decorative items is a mixture of the metals tin, copper, bismuth, and antimony. If a 1.256 g piece of pewter is found to contain 1.068 g of tin, what is the percentage of tin in the sample? C) You weighed 165 pounds and went on a diet, what percentage of your original weight did you lose?
Please help!!
A)
0.58 = x / 15g
x = 0.58 * 15
x = 8.7g
B)
% = 100 * 1.068 / 1.256
% = 85%
C)
Not enough information given. We would need to know either how many pounds we lost or what our current weight is in order to calculate the %.
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home made bismuth crystals
the metal BISMUTH PLEASE HELPPPPPP!!!!!!!!!! easy best answer!?
what is the melting, boiling, and normal phase this metal?
also how much does it cost per gram or per whatever (pound, ounce-dont gotta answer but is appreciated!)
Melting point: 271 (Celcius)
Boiling point: 1500 (Celcius)
Normal phase: It is an air sensitive, flammable SOLID
It's 11$/100g
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