The solubility of nitrogen gas in water at 25°c and a nitrogen pressure of 522 mm hg is 4.7 × 10⁻⁴ mol/l. what is the value of the henry's law constant in mol l⁻¹• atm⁻¹?
a. 9.0 x 10⁷ mol/l atm
b. 3.2 x 10⁻⁴ mol/l atm
c. 4.7 x 10⁻⁴ mol/l atm
d. 6.8 x 10⁻⁴ mol/l atm
e. 1.5 x 10³ mol/l atm

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.