Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Mole Concept > Flashcards

Mole Concept Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

definition of relative atomic mass?

A

ratio of the average mass of one atom of an element to 1/12 of the mass of the carbon-12 atom
(leave to 1d.p.)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

definition of relative isotopic mass?

A

ratio of the mass of one atom of the isotope of an element to 1/12 of the mass of the carbon-12 atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

definition of relative molecular mass?

A

ratio of the average mass of one molecule to 1/12 of the mass of the carbon-12 atom
(sum of individual relative atomic mass of atoms in the molecule)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

definition of relative formula mass?

A

ratio of the average mass of one formula unit of an ionic compound to 1/12 of the mass of the carbon-12 atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how to calculate the percentage composition by mass of an element in a compound?

A

(no. of atoms of the element in the formula)(relative atomic mass of the element) / relative molecular mass of the formula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is Avogadro’s constant?

A

6.02 * 10^23

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is a mole?

A

exactly 6.02 * 10^23 of elementary particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what are the two formulas to derive the number of moles?

A
  1. number of particles/Avogadro’s constant
  2. mass/molar mass
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

definition of the empirical formula?

A

simplest ratio of each type of atoms in a compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

definition of the molecular formula?

A

actual number of atoms in a compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is Avogadro’s law involving gases?

A

6.02 * 10^23 particles of any gas will occupy the same volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

room temperature and pressure

A

24.0 dm3 mol^-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

standard temperature and pressure

A

22.7 dm3 mol^-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

definition of molar volume of a gas?

A

volume occupied by a mole of gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

how to calculate a mole of gas?
(either in cm3/mol or dm3/mol)

A

volume/molar volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how to calculate the percentage yield?

A

(actual mass of product/theoretical maximum mass of the product) * 100%

17
Q

how to calculate the percentage purity?

A

(mass of pure substance/mass of impure substance) * 100%

18
Q

how to calculate concentration of a solution?
(either in g/dm3 or mol/dm3)

A

amount of solute/volume of solute

19
Q

how much is 1dm3 in cm3?

A

1000cm3

Chemistry (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions