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benjamenburton1
23.08.2019 •
Chemistry
Stainless steel is an alloy of iron containing 5 percent nickel and 0.175 percent chromium. how many atoms of nickel are present in a 84 g sample of this alloy?
answer in units of atoms
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Ответ:
For this you can use the equation
The mass, as was worked out previously, is 4.2g
The Mr, which is found on the periodic table, is 28
Moles =
1mol = 6.023 x
So, 0.15mol = 0.15 x 6.023 x
Ответ: