Recent activity by BuddyHardin5

1 answer 41 views

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

1 answer 35 views

Calculate the standard enthalpy change (in kJ/mol) for the neutralization reaction of hydrochloric acid (HCl) and sodium hydroxide (NaOH) using the following information: HCl (aq) + NaOH (aq) → NaCl (aq) + H2O(l)ΔHf° (kJ/mol): HCl (aq) = -167.2 NaOH (aq) = -469.2 NaCl (aq) = -407.3 H2O(l) = -285.8

asked Feb 3 in Chemical thermodynamics

1 answer 52 views

How do the photochemical properties of bioluminescent organisms differ from those of non-bioluminescent organisms?

asked Jan 31 in PhotoChemistry

1 answer 8 views

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

1 answer 51 views

What is neglect syndrome, and what brain area is thought to be responsible?

asked Jan 20 in Psychology

1 answer 22 views

What is the trait theory of leadership?

answered Jan 15 in Psychology

1 answer 17 views

What is a phobia?

asked Jan 14 in Psychology

1 answer 24 views

Which kind of mutations have the most dramatic effect on proteins?

asked Jan 8 in Science

1 answer 25 views

What fills the epidermal cells that make up fingernails and toenails?

asked Jan 6 in Science

1 answer 10 views

What effect, related to weather forecasting, occurs not only for sound but for any wave when there is relative motion between the observer and the source?

asked Jan 6 in Science

1 answer 24 views

What causes the endometrium to thicken during a menstrual cycle?

asked Jan 6 in Science

1 answer 12 views

Plant-like protists are commonly called what?

answered Dec 31, 2024 in Science

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