Aniline hydrochloride, (C6H5NH3)Cl, is a weak acid. (Its conjugate base is the weak base aniline, C6H5NH2.) The acid can be titrated with a strong base such as NaOH. Assume 55.0 mL of 0.1000 M aniline hydrochloride is titrated with 0.195 M NaOH. The Ka for anilinium ion is 2.400 × 10−5. What pH of the solution before the titration begins?
What is the pH at the equivalence point?
What is the pH at the half-way point of the titration?

What are the genotypic and phenotypic ratios

Based on the equation and the information in the table, what is the enthalpy of the reaction?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.