Caffeine (C₈H₁₀N₄O₂) Is a Stimulant Found in Coffee and Tea

question 37

Multiple Choice

Caffeine (C₈H₁₀N₄O₂) is a stimulant found in coffee and tea. What is the mass percent of caffeine, %(m/m) , for a solution of caffeine dissolved in chloroform (CHCl₃) that has a concentration of 0.0890 m ?
Molar Mass(C₈H₁₀N₄O₂) = 194.19 g/mol

• A) 1.05%
• B) 1.70%
• C) 8.9%
• D) 16.2%
• E) 68.6%

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Definitions:

Perceived Organizational Support

Indicates the extent to which employees believe their organization values their contributions and cares about their well-being.

Trust Perceptions

Individuals’ beliefs in the reliability, truth, ability, or strength of someone or something within an organizational context.

Management

The process of planning, organizing, leading, and controlling resources to achieve organizational goals effectively and efficiently.

POS

Perceived Organizational Support; the degree to which employees believe their organization values their contributions and cares about their well-being.