The Decomposition of a Solution of Hydrogen Peroxide, H₂O₂, Was

question 17

Multiple Choice

The decomposition of a solution of hydrogen peroxide, H₂O₂, was monitored over several days. Initially, hydrogen peroxide was present at a concentration of 1 mol L^-1; after four days the hydrogen peroxide was present at a concentration of 0.5 mol L^-1. What is the rate of the reaction for the decomposition of hydrogen peroxide?

• A) 1.40  10^-6 mol L^-1
• B) 1.40  10^-9 mol L^-1 s^-1
• C) 1.40  10^-6 mol L^-1 s^-1
• D) 1.25  10^-1 mol L^-1 day^-1
• E) 8.68  10^-5 mol L^-1 min^-1

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Definitions:

Associativity

The rule that defines the order in which operations of equal precedence are performed in an expression.

Precedence

The rules in programming languages that define the order in which operations are processed, such as the order of arithmetic operations.

Operators

Operators are symbols that instruct the compiler to perform specific mathematical, relational, or logical operations and produce a final result.

Binary Arithmetic

A fundamental area of computer science focusing on arithmetic operations, such as addition and multiplication, using binary numbers.