radomes.openskiesproject.org
math236 math236
  • 27-06-2016
  • Chemistry
Answered

An alloy contains 56 g of pure silver and 22 g of copper. What is the percentage of silver in the alloy.

Verified Answer :

asergio1 asergio1
  • 27-06-2016

Find the molar mass of both of them so Cu is 63.5g/mol and Ag is 107.8g/mol and then divide the mass in grams
for each by the molar mass of each to get the number of moles so 56g/107.8g=.52moles and 22g/63.5g=.35moles. Add the
number of moles together and divide the number of moles of silver by
that sum so .52mol+.35mol/.35=2.4*100%.

Answer Link

Related Questions

What would be the process to update a patients account if she moved and didnt give a forward address and the patient is your friend
what is the original price if there is a 10 discount and the sale price is 7650
Give An example of how a structure is related to function in living things
Themes specific to individual stories a are c are rarely b are not d are often
In ABC AC 15 centimeters m B 68 and m C 24 What is BC to two decimal places658 centimeters988 centimeters1357 centimeters1617 centimeters1925 centimeters
Temperature is defined as
Color schemes generally represent the same color in different hues
Research has shown that the equity premium is equal to about 6 per year The fact that the equity premium is as large as it is violates economic theory A True B
describe the role of the grass in the food web
does anyone know how to do geometry