Asked by Sarah
A nickel has a mass of 5.000 grams and is composed of 25% nickel and 75% copper. What is the mass of copper in the nickel? How many moles of copper are in this nickel? How many copper atoms are in this nickel?
Answers
Answered by
DrBob222
mass Cu = 5.000 x 0.75 = ??
moles Cu = mass Cu/molar mass Cu.
There are 6.022 x 10^23 Cu atoms in a mole of Cu atoms.
moles Cu = mass Cu/molar mass Cu.
There are 6.022 x 10^23 Cu atoms in a mole of Cu atoms.
Answered by
Edgar Alvarez
soy hacker
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