How many gold atoms in a "carat"carat?

1 Answer
Aug 9, 2016

"1 carat"1 carat == "0.007055 oz"0.007055 oz == 200*mg200mg, so...........

Explanation:

"No. of moles"No. of moles == "mass"/"molar mass"massmolar mass ==

("22 carat"xx200*mg*"carat"^-1)/(196.97*g*mol^-1)22 carat×200mgcarat1196.97gmol1 == ??mol??mol

And "number of gold atoms"number of gold atoms ==

("22 carat"xx200xx10^-3g*"carat"^-1)/(196.97*g*mol^-1)xx6.022xx10^23*mol^-122 carat×200×103gcarat1196.97gmol1×6.022×1023mol1, which gives a result as a NOOMBER!