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Levart [38]
2 years ago
5

A molecule has an empirical formula of ch, and its molar mass is known to be 26 g/mol. What is its molecular formula?.

Chemistry
1 answer:
Sonbull [250]2 years ago
7 0

A molecule has an empirical formula of ch, and its molar mass is known to be 26 g/mol and the  molecular formula is C₂H₂ ethyne

Molecular formula of compound is (CH)n and the given molar mass is 26g/mol

Molar mass of (CH)n, C=12=n(12+1)=13n

So 13n and n=2

=13×2=26 and given molar mass is also 26g/mol

So here two carbon and two hydrogen so molecular formula is C₂H₂ and name is ethyne

Know more about molecular formula

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Mass = number of moles × molar mass

Mass = 0.05 mol ×  16 g/mol

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