As mentioned, caffeine amounts can vary depending on the origin of the cacao beans. But here's an average from the USDA of the caffeine amounts per 1 ounce of chocolate:
Dark chocolate with 70-85% cacao = 22.7 mg Dark chocolate with 45-60% cacao = 12.2 mg
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As mentioned, caffeine amounts can vary depending on the origin of the cacao beans. But here's an average from the USDA of the caffeine amounts per 1 ounce of chocolate:
Dark chocolate with 70-85% cacao = 22.7 mg
Dark chocolate with 45-60% cacao = 12.2 mg