The PH of a 2

question 50

Multiple Choice

The pH of a 2.1 × 10^-3 M solution of a weak base is 9.87. Calculate K_b for this base.

• A) 2.6 × 10^-6
• B) 1.2 × 10^-4
• C) 6.4 × 10^-8
• D) 8.7 × 10^-18
• E) none of these

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Definitions:

Automatic Transmission Fluid

A specialized fluid used in automatic transmissions to lubricate, cool, and transfer power within the transmission system.

Power Steering Fluid

A specially formulated hydraulic fluid used in the power steering system to transmit power and reduce friction.

Restricted Exhaust

A condition where the flow of exhaust gases out of the vehicle's engine is obstructed, leading to decreased performance and efficiency.

Running Compression Test

A compression test done at running rpm to check the breathing ability of the engine, specifically to see if the valve train is opening and closing the valves sufficiently.