Consider the following curve for the titration of a weak monoprotic acid (HA) with a strong base and answer each of the following questions: If the question asks for a volume, express your answer in increments of 5 mL (ex: 0, 5, 10, etc.). For all other questions, express your as a whole numbers (1, 2, 3, etc). A. What is the pH at the equivalence point? B. What is the volume of added base at the equivalence point? mL C. At what volume of added base is the pH calculated by working an equilibrium problem based on the initial concentration and Ka of the weak acid? mL D. At what volume of added base does pH=pKa? mL E. At what volume of added base is the pH calculated by working an equilibrium problem based on the concentration and Kb of the conjugate base? mL F. Beyond what volume of added base is the pH calculated by focusing on the amount of excess strong based added? mL G. At what volume of added base is the concentration of HA equal to the concentration of A-? mL H. At what volume of added base is the concentration of HA equal to the concentration of strong base? mL I. What is the pKa of the acid?

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

Which description best characterizes the motion of particles in a solid?

For a family dinner, jose’s mom baked a loaf of bread. during the meal, his grandmother commented, “this bread is so dense! ” what do you think his grandmother meant by the word dense? you have some ideas regarding density already, but this experiment will enrich your understanding of the relationship between mass, volume and the density of objects. when making measurements in this experiment we will be using si units, the international system of units. the purpose of using si units is to have the ability to communicate and compare data results with other experiments without having to make conversions. measurement symbol si unit length m meter mass kg kilogram volume l liters density kg/l kilograms per liter any calculations that are performed during this experiment will ultimately be reported in scientific notation. recall that scientific notation is extremely important when we have data that is extremely small or large. scientists rely on a standard form of communication to quickly make hypotheses and judgements based on data. what is the density of block a? a0kg/l what is the density of block b? a1kg/l what is the density of block c? a2kg/l what is the density of block d? a3kg/l what is the density of block e? a4kg/l which block is the densest? a5