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easy.... each 1 troy ounce is equal to 31.1 grams (metric system) extrapolate to 10 troy ounces equal to 311 grams. Note that 31.1 grams/troy ounce is close enough for quick calculations. to be more precise... it is 31.103477 grams/troy ounce, but this figure is only useful in calculating large amounts

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16y ago

What else can I help you with?