A 50.00-mL solution of 0.0304 M ethanolamine (Kb = 3.2 × 10–5) is titrated with a 0.0282 M solution of hydrochloric acid as the titrant. What is the pH of the base solution after 23.24 mL of titrant have been added? (Kw = 1.00 × 10–14)

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.