Quantitative Chemistry

Question 1

Atomic Number

Answer 1

The number of protons in the nucleus of an atom

Question 2

Mass Number

Answer 2

The number of protons and neutrons in the nucleus of an atom

Question 3

Isotopes

Answer 3

Atoms of the same element with different number of neutrons in the nucleus of an atom

Question 4

Mole

Answer 4

The amount of substance, expressed in grams, which contains as many elementary particles as there are in 12 g of the carbon 12 isotope

Question 5

Molar Mass

Answer 5

The mass in grams of one mole of that substance

Question 6

Solute

Answer 6

The substance that is dissolved in the solvent to form a solution

Question 7

Solvent

Answer 7

The substance in which another substance is dissolved, forming a solution

Question 8

Aqueous Solution

Answer 8

If the solvent used is water, then the solution is known as an aqueous solution

Question 9

Gaseous solution

Answer 9

These are formed when gases occupy the entire volume of the container

Question 10

Concentration

Answer 10

The amount of solute per unit volume of solution

Question 11

A standard solution

Answer 11

A solution of known concentration

Question 12

Solution

Answer 12

Homogenous mixture of solute and solvent

Question 13

Yield

Answer 13

A measure of the extent of a reaction, generally measured by comparing the amount of product against the amount of product that is possible