CHAP 3 KEY TERMS

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What is Avogadro's number experimentally determined value for the number of entities comprising 1 mole of a substance?

6.022 × 10^23 mol−1 (correct)

4.022 × 10^23 mol−1

7.022 × 10^23 mol−1

5.022 × 10^23 mol−1

What does the term 'dilute' refer to in a solution?

Presence of a high concentration of solvent

Adding solvent to lower solute concentration (correct)

Quantitative measure of solute and solvent

Relatively high concentration of solute

How is 'molarity (M)' defined?

Sum of average atomic masses for all atoms represented in an empirical formula

Number of moles of solute dissolved in 1 liter of solution (correct)

Ratio of solute-to-solution mass expressed as a percentage

Mass in grams of 1 mole of a substance

What is the formula to calculate mass percentage?

Ratio of solute-to-solution mass multiplied by 10^9 Signup and view all the answers

What does 'empirical formula mass' represent?

Sum of average atomic masses for all atoms represented in an empirical formula Signup and view all the answers

What is 'parts per billion (ppb)'?

Ratio of solute-to-solution mass multiplied by 10^9 Signup and view all the answers

What does 'solute' refer to in a solution?

Solution component present in a concentration less than that of the solvent Signup and view all the answers

'Formula mass' is the sum of what for all atoms represented in a chemical formula?

(Average) masses for all atoms Signup and view all the answers

'Mass-volume percent' is the ratio of what expressed as a percentage?

(Solute) mass to solution volume Signup and view all the answers

'Volume percentage' refers to the ratio of what expressed as a percentage?

(Solute-to-solution) volume Signup and view all the answers

What does the term 'solute' refer to in a solution?

Solution component present in a concentration less than that of the solvent Signup and view all the answers

How is 'mass percentage' calculated?

Ratio of solute-to-solution mass expressed as a percentage Signup and view all the answers

What is the unit of concentration defined as the number of moles of solute dissolved in 1 liter of solution?

Molarity (M) Signup and view all the answers

Which term describes the process by which solute components are dispersed in a solvent?

Dilution Signup and view all the answers

What is the ratio of solute-to-solution mass multiplied by 106 known as?

Parts per million (ppm) Signup and view all the answers

The sum of the average masses for all atoms represented in a chemical formula is known as what?

Formula mass Signup and view all the answers

'Parts per billion (ppb)' is the ratio of solute-to-solution mass multiplied by how much?

$10^9$ Signup and view all the answers

CHAP 3 KEY TERMS

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