Determine the concentration of a phosphoric acid solution if a 25.00 mL sample of phosphoric acid of unknown concentration requires 35.77 mL of a 0.250 M NaOH solution to reach the equivalence point.

How do dying stars contribute to the formation of planets

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h