A Solution of Nitrous Acid (0

question 10

Multiple Choice

A solution of nitrous acid (0.13 M, 20.00 mL) was titrated with 18.0 mL of 0.12 M sodium hydroxide (K_a of nitrous acid  4.00  10^4) . What is the final pH of this solution?

• A)2.71
• B)4.09
• C)5.34
• D)11.29
• E)9.91

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Definitions:

Mathematical Operators

Symbols that represent mathematical operations such as addition (+), subtraction (-), multiplication (*), and division (/) in programming languages.

Assignment Operators

Assignment operators are used in programming languages to assign values to variables. The simplest assignment operator is '=', which sets the variable on the left to the value on the right.

Format Manipulators

Tools or methods in programming languages like C++ that are used to control the format, such as precision and width, of input/output operations.

Indirect Addressing

A method of addressing memory where the address of the data is held in another location, allowing for more dynamic data access and manipulation.