The PH = -Log[H⁺] for a Solution

question 1

Multiple Choice

The pH = -log[H⁺] for a solution. The pOH = -log[OH^-] for a solution. The pH and pOH are related, and their sum is equal to 14 (pH + pOH = 14) . If the concentration of a dilute solution of potassium hydroxide is 0.001 M, what is the pH of that solution?

• A) 7
• B) 3
• C) 11
• D) 2

Distinguish between the Count Up (CU) and Count Down (CD) operations in counters.

Recognize and interpret the significance of key parameters in counter instructions (e.g., Preset, Accum).

Describe how counter values are maintained or reset based on rung conditions.

Identify the role of external trigger signals in counter operation.

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Definitions:

Double-Declining-Balance Method

A method of accelerated depreciation that doubles the straight-line depreciation rate, leading to higher depreciation expenses in the initial years of asset use.

Straight-Line Method

A method of allocating the cost of a tangible asset over its useful life in equal periodic amounts.

Straight-Line Depreciation

A method of allocating the cost of a tangible asset over its useful life in equal annual amounts, making it the simplest form of depreciation.

Residual Value

The projected worth of an asset upon reaching the conclusion of its operational lifespan.