What Is the PH of the Buffer That Results When

question 48

Multiple Choice

What is the pH of the buffer that results when 12.0 g of NaH₂PO₄ and 8.00 g of Na₂HPO₄ are diluted with water to a volume of 0.50 L? (K_a of H₂PO₄^- = 6.2 × 10^-8,the molar masses of NaH₂PO₄ and Na₂HPO₄ are 120.0 g/mol and 142.0 mol,respectively)

• A) 4.10
• B) 6.96
• C) 7.21
• D) 7.46
• E) 9.90

Differentiate between wealth and income.

Understand the concept of the feminization of poverty and its increasing trend.

Comprehend the impact of a wife's higher income on marital roles.

Identify and discuss general explanations for poverty.

---

Definitions:

Rhonchi

Low-pitched, rattling lung sounds that suggest blocked airflow, often heard in cases of chronic mucus production.

Auscultating

The act of listening to sounds from the heart, lungs, or other organs, typically with a stethoscope, as part of a medical examination.

Respiratory Rate

The number of breaths taken per minute, a vital sign indicating the rate of breathing.

Vital Signs

Measurements of the body's most basic functions, including temperature, pulse, respiration rate, and blood pressure, used to assess general physical health.