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وارد شوید

JAMB - Chemistry (2014 - No. 10)

A silicon -containing ore has 92% 28Si, 5% 29Si and 3% 30Si. Calculate the relative atomic mass of the silicon.
14.00
29.00
28.11
28.00

توضیح

(\(\frac{92}{100}\) x 28) + (\(\frac{5}{100}\) x 29) + (\(\frac{3}{100}\) x 30) = 28.11

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