STOICHIOMETRY

Question 1

The relationship between the relative quantities of substances taking part in a reaction or formation of a compound

• involves chemical equilibrium
• involves in balancing equations

Answer 1

Stoichiometry

Question 2

The SI unit for amount of substance

Answer 2

Mole

Question 3

The quantitative relationship between the amounts of reactants and/or products in a given chemical equation

Answer 3

Mole to mole ratio

Question 4

The mass of one mole of substance, usually measured in g/mol

Answer 4

Molar mass

Question 5

STOICHIOMETRY equation step by step (2)

Answer 5

1. Volume of give × Convert mL to L × molarity of the given × Mole to mole ratio
2. Moles of solute (mol)/ Volumes of solution (L)

Question 6

Refers to the use of the analytical technique referred to as the titration

Answer 6

Titrimetric analysis

Question 7

Chemical substances that cause color changes (Ex. Methalene blue)

Answer 7

Indicator

Question 8

It includes a group of quantitative procedures based on determining the quantity of a reagent of known concentration that is required to react completely with the ANALYTE

Answer 8

Titration method

Question 9

A homogeneous mixture of 2 or more substances

Answer 9

Solution

Question 10

Are the substances present in the smallet amount

Answer 10

Solute

Question 11

The substance present in the larger amount

Answer 11

Solvent

Question 12

Contains the MAXIMUM amount of a solute that will dissolve in a given

Answer 12

Saturated solution

Question 13

Contains LESS SOLUTE that it has the capacity to dissolve

Answer 13

Unsaturated solution

Question 14

Contains MORE SOLUTE than is present in a saturated solution

Answer 14

Supersaturated solution

Question 15

The amount of solute present in a given amount of solution

• Percent by mass
• Mole of fraction
• Molarity
• Molality

Answer 15

Concentration

Question 17

It shows the MASS OF SOLUTE present in a given mass of solution

Mass of solute ÷ mass of solute+ mass of solvent ×100

Answer 17

Percent by mass

Question 18

It shows the VOLUME OF SOLUTE present in a given VOLUME OF SOLUTION

Volume of solute ÷ Volume of solution ×100

Answer 18

Percent by volume

Question 19

It shoes the MASS OF SOLUTE present in a given VOLUME OF SOLUTION

mass of solute ÷ Volume of solution × 100

Answer 19

Percent by mass and volume

Question 20

Defined as the number of moles of solute dissolved in one kilogram of the solvent

m= mol solute ÷ kg solvent

Answer 20

Molality (m)

Question 21

Defined as the number of moles of the solute dissolved in one liter of the solution

M= mol solute ÷ L solution

Answer 21

Molarity

Question 22

Mole of a given component calculation

Answer 22

Mol of substance= Mass of component in grams ÷ Molar mass of the component in g/mol

Question 23

Ratio of the number of moles of one component of a mixture to the total number of all components, computation?

Answer 23

X = Moles of component ÷ Total moles of all components

Question 24

This is another way of determining concentration. This is used for very small concentrations of particles in solutions

• Calculation?

Answer 24

Parts per million (ppm)
Parts per million= grams of solute/ grams of solvent × 1000000