You Have Solutions of 0 $\times$ 10^-4)

question 36

Multiple Choice

You have solutions of 0.200 M HNO₂ and 0.200 M KNO₂ (K_a for HNO₂ = 4.00 $\times$ 10^-4) .A buffer of pH 3.000 is needed.What volumes of HNO₂ and KNO₂ are required to make 1 liter of buffered solution?

• A)500 mL of each
• B)286 mL HNO₂;714 mL KNO₂
• C)413 mL HNO₂;587 mL KNO₂
• D)714 mL HNO₂;286 mL KNO₂
• E)587 mL HNO₂;413 mL KNO₂

Understand the concept and signs of cachexia.

Recognize children’s and adults' comprehension and attitudes towards their own death.

Identify factors that reduce anxiety about death in older adults.

Understand the different circumstances and examples of expected and unexpected deaths.