An Aliquot (28

question 79

Multiple Choice

An aliquot (28.7 mL) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample?

• A) 1.6
• B) 0.21
• C) 7.2
• D) 0.17
• E) 0.42

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Definitions:

Synthesis

The chemical process of combining two or more elements or compounds to form a more complex product.

Transformation

A genetic alteration of a cell resulting from the direct uptake, incorporation, and expression of exogenous genetic material from its surroundings.

2-Methylamino-1-ethanol

An organic compound comprised of an ethanol backbone with a methylamino substituent, commonly used in chemical synthesis and as an intermediate.

Phosgene

A toxic chemical compound with the formula COCl2, used in the production of organic chemical compounds as a reagent or intermediate.