Amixture of helium and neon gases has a density of 0.6048 g/l at 48.7°c and 792 torr. what is the mole fraction of neon in this mixture?

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.

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.