How Many Formula Units Are in a Sample of Rust

question 100

Multiple Choice

How many formula units are in a sample of rust, Fe₂O₃ that has a mass of 5.0 g?

• A)1.9 x 10²⁵
• B)0.031
• C)1.9 x 10²²
• D)0.070
• E)4.2 x 10²²

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Definitions:

Kilobyte

A unit of digital information that consists of 1,024 bytes, commonly used to measure storage capacity and data.

Bytes

A unit of digital information that typically consists of eight bits, commonly used to encode a single character of text in a computer.

Single Byte

The unit of digital information in computing and telecommunications that most often consists of eight bits.

Kilobyte

A unit of memory or data equal to 1,024 bytes, used to quantify digital information.