When an Ionic Compound Such as Sodium Chloride (NaCl)is Placed

question 15

Multiple Choice

When an ionic compound such as sodium chloride (NaCl) is placed in water,the component atoms of the NaCl crystal dissociate into individual sodium ions (Na⁺) and chloride ions (Cl^-) .In contrast,the atoms of covalently bonded molecules (e.g. ,glucose,sucrose,glycerol) do not generally dissociate when placed in aqueous solution.Which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions) ?

• A)1 L of 0.5 M NaCl
• B)1 L of 0.5 M glucose
• C)1 L of 1.0 M NaCl
• D)1 L of 1.0 M glucose
• E)2 L of 0.5 M glucose

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Definitions:

Level of Significance

The probability threshold below which the null hypothesis is rejected in hypothesis testing.

Probability

A mathematical measurement of the likelihood of an event occurring, expressed as a number between 0 and 1.

Level of Significance

The criterion used for rejecting the null hypothesis; often denoted by alpha.

Type II Error

The failure to reject a false null hypothesis, also known as a "false negative."