1) 45.0 mL of 0.125 M benzoic acid C6H3COOH is titrated with 0.25 M NaOH. Ka of the acid is 6.46 x 10-5. Calculate the pH of the solutions at the following points of the
titration. Indicate whether the solution is buffer or not at these points.
a. After adding 15 mL of NaOH.
I

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

In which phase of mitosis do the spindle fibers pull the chromosomes apart to opposite sides of the cell ?