Chemistry, 11.02.2022 16:30 Slaybre8952
The empirical formula of a chemical substance is CH. The molar mass of a molecule of the substance is 78. 11 g/mol. What is the molecular formula of the chemical substance? C2H2 C2H4 C3H4 C6H6.
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The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)
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What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?
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The empirical formula of a chemical substance is CH. The molar mass of a molecule of the substance i...
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