Strontium Oxide Has a Face Centered Cubic Unit Cell of Oxide

question 65

Multiple Choice

Strontium oxide has a face centered cubic unit cell of oxide ions with the strontium in octahedral holes.The radius of Sr²⁺ is 127 pm and the radius of O^2- is 135 pm.What is the density of strontium oxide? (100 cm = 1 $\times$ 10¹² pm)

• A) 0.209 g/cm³
• B) 1.20 g/cm³
• C) 2.39 g/cm³
• D) 3.59 g/cm³
• E) 4.78 g/cm³

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Accounting Profits

The net earnings of a company as calculated by subtracting total expenses from gross revenue, according to accepted accounting principles.

Economic Profit

The difference between a firm's total revenue and its total costs, including both explicit and implicit costs, reflecting the financial gain exceeding the opportunity cost of resources used.

Accounting Profit

Net income of a company is determined by deducting total expenses from total revenues, in line with established accounting norms.

Implicit Costs

The opportunity costs associated with a company's resources that are not directly paid out in cash but represent foregone alternatives.