The mass fraction of hydrogen in combination with fluorine is 5%. Determine the formula
| June 17, 2021 | education
The mass fraction of hydrogen in combination with fluorine is 5%. Determine the formula of the compound and the valence of fluorine in it.
The ratio of the mass fractions of fluorine and hydrogen in the molecule: 95%: 5% = 19, Since the molecular weight of fluorine is 19
amu, and hydrogen 1 amu, then obviously their ratio in the molecule, as 1: 1, is hydrogen fluoride HF.
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