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The percentag...

Question

The percentage of gold in 24 carat gold is:

A

99.99

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B

91.6

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C

75

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D

95

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Solution

The correct option is A 99.99
Karat purity is measured as 24 times the pure mass divided by the total mass.
$K = 24 \frac{M_{g o l d}}{M_{m}}$
Therefore 24-karat gold is pure (also includes down to $99.9$ % gold by mass),

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