How Many Grams of Calcium Hydride Are Required to Produce

question 178

Multiple Choice

How many grams of calcium hydride are required to produce 1.14 L of hydrogen gas at 25.0°C and 0.975 atm pressure according to the chemical equation shown below? CaH₂(s) + 2 H₂O(l) → Ca(OH) ₂(aq) + 2 H₂(g)

• A) 0.956 g
• B) 1.91 g
• C) 3.82 g
• D) 11.4 g

---

Definitions:

Key Suspect

An individual believed to have played a significant role in committing a crime and is the focus of a criminal investigation.

Adequate Attorney Supervision

Refers to the requirement that lawyers must properly oversee the work of their subordinates, ensuring it meets legal standards and ethics.

Supervising Attorney

A lawyer who has responsibility for overseeing the work of other attorneys, paralegals, and legal staff within a law firm or legal department, ensuring compliance with legal standards and practices.

Duty of Competence

An ethical requirement that lawyers must possess the legal knowledge, skill, thoroughness, and preparation reasonably necessary for the representation.