A chemistry student weighs out 0.117g of citric acid H3C6H5O7, a triprotic acid, into a 250.ML volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0600M NaOH solution.

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.