In the chapter section on acid/base properties of salt solut…

In the chapter section on acid/base properties of salt solutions, you learned that protonated forms of weak bases can act as weak acids.  Given that for ammonia, NH3, Kb = 1.8 x 10-5, calculate the pH of a 0.2 M solution of NH4Br. Hint: NH4Br dissociates 100% in water and acts as a weak acid (NH4+). This is therefore a weak acid pH calculation with given Kb instead of Ka. 

A 7-year-old child who has a history of a repaired congenita…

A 7-year-old child who has a history of a repaired congenital heart defect (CHD) has many dental caries along with gingival erythema and irritation and a temperature of 102.5°F.  The child is noted to have a Janeway lesion on his hand. What will the nurse practitioner do next?

A toddler is seen in the clinic after a 2-day history of int…

A toddler is seen in the clinic after a 2-day history of intermittent vomiting and diarrhea. An assessment reveals an irritable child with dry mucous membranes, 3-second capillary refill, 2- second recoil of skin, mild tachycardia and tachypnea, and cool hands and feet. The child has had two wet diapers in the past 24 hours. What will the nurse practitioner recommend?