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Solving a 40-year mystery, scientists ID chemical found in millions of Americans’ tap water
For more than four decades, scientists have noticed a mysterious chemical in the treated drinking water of millions of people ...
C&EN
3 天
Mystery chemical in drinking water identified
Scientists find chloronitramide anions form in water treated with chloramines, raising questions about the ions’ toxicity ...
BBC
1 年
Empirical formula and molecular formula
You can work out the molecular formula from the empirical formula, if you know the relative mass formula (M r) of the compound. Add up the atomic masses of the atoms in the empirical formula.
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