What Mass of Sodium Formate (HCOONa)must Be Added to 350

question 34

Multiple Choice

What mass of sodium formate (HCOONa) must be added to 350.mL of water in order to obtain a solution having a pH of 8.50? [K_a(HCOOH) = 1.77 × 10^-4]

• A)0.23 g
• B)4.3 g
• C)35 g
• D)12 g
• E)130 g

---

Definitions:

Observational Learning

The process of learning behaviors through the observation of the behaviors of others.

Motivated

Refers to being eager and willing to engage in activities or tasks due to intrinsic or extrinsic factors.

Model the Behavior

involves demonstrating specific actions as an example for others to follow, especially in learning social behaviors or skills.

Skinner Box

An apparatus used to conduct operant conditioning research with animals, named after B.F. Skinner, a psychologist.