What Is the PH of a Solution Prepared by Dissolving

question 81

Multiple Choice

What is the pH of a solution prepared by dissolving 0.30 grams of solid CaO (lime) in enough water to make 2.00 L of aqueous Ca(OH) ₂ (limewater) ? CaO(s) + H₂O(l) → Ca²⁺(aq) + 2 OH^-(aq)

• A)2.27
• B)2.57
• C)11.42
• D)11.73

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Definitions:

Resource Use

The way in which human societies utilize natural resources to fulfill their needs and wants.

Real Cost

The total economic cost of production, considering all direct and indirect resources consumed, including opportunity costs.

Commodity Resources

Basic goods used in commerce that are interchangeable with other goods of the same type.

Fracking

A method of oil and gas extraction that involves injecting liquid at high pressure into subterranean rocks, boreholes, etc., to force open existing fissures and extract oil or gas.