How Many Oxygen Atoms Are There in 3

question 197

Multiple Choice

How many oxygen atoms are there in 3.00 g of sodium dichromate,Na₂Cr₂O₇?

• A) 0. 0802 oxygen atoms
• B) 9.85 × 10²⁰ oxygen atoms
• C) 6.90 × 10²¹ oxygen atoms
• D) 4.83 × 10²² oxygen atoms

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Definitions:

Periodic Inventory Systems

Periodic Inventory Systems is an inventory management method where inventory levels are updated and physical counts are conducted at specific intervals, typically at the end of an accounting period.

FIFO

An inventory valuation method (First In, First Out) where the oldest inventory items are recorded as sold first.

Weighted Average

A calculation that takes into account the varying degrees of importance of the numbers in a dataset, often used in inventory valuation and grading.

Lower-Of-Cost-Or-Market

An accounting principle that values inventory at the lower of its historical cost or market value, to comply with the conservatism principle.