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In Spain, the legal blood alcohol limit is 250 of alcohol per 1 L of breath. What is this alcohol concentration in parts per billion, ppb?

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Final answer:

The legal blood alcohol limit in Spain is 250 milligrams per liter (mg/L) of breath, which can be expressed as 250,000 parts per billion (ppb) or micrograms per liter (µg/L).

Step-by-step explanation:

To convert the legal blood alcohol limit in Spain from 250 milligrams per liter (mg/L) of breath to parts per billion (ppb), we need to convert milligrams to micrograms. There are 1000 micrograms in a milligram. Therefore, the blood alcohol limit in Spain can be expressed as 250,000 ppb (250,000 micrograms per liter).

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