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Calculate the standard enthalpy change for the vaporization of 25 g of liquid nitrogen at its boiling point assuming constant pressure is 1 atm. Given the molar heat of vaporization of nitrogen is 5.56 kJ/mol.

answered Feb 3 in Chemical thermodynamics

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A sample of an unknown compound was analyzed using elemental analysis, and the results showed that the compound contains 12.8% hydrogen, 49.2% carbon, and 38.0% oxygen by mass. What is the empirical formula of the compound?

answered Jan 22 in Analytical Chemistry

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What is the trait theory of leadership?

answered Jan 15 in Psychology

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Plant-like protists are commonly called what?

answered Dec 31, 2024 in Science

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