A gold ore is found to have a purity of 70ppm. How much gold in grams can be recovered from 5kg of the ore?


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Question Number 136901 by nadovic last updated on 27/Mar/21

$A g o l d o r e i s f o u n d t o h a v e a p u r i t y$ $o f 70 p p m . H o w m u c h g o l d i n g r a m s$ $c a n b e r e c o v e r e d f r o m 5 k g o f t h e o r e ?$
	Answered by Olaf last updated on 27/Mar/21

	$m_{p u r e g o l d} = τ m_{o r e} = 70 . 10^{- 6} \times 5 . 10^{3} = 0, 35 g$
	Commented by nadovic last updated on 28/Mar/21

	$T h a n k y o u S i r$
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