Brainscape's Knowledge GenomeTM

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


See full index

physics 2021 > quantitative chemistry > Flashcards

quantitative chemistry Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

mole definition (1)

A

amount of substance with the same number of particles as carbon-12

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

mole value (1)

A

6,02x10^23 (mol/n)

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

molar mass (1)

A

relative atomic mass of substance (g.mol^-1/M)

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

mole formula

A

n=m/M

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

percentage composition (1)

A

percentage of each element in a compound

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

percentage composition of an element formula (1)

A

M(element)/M(compound) x 100

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

molar volume of gas formula (1)

A

n = V/Vm

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

volume of any gas at STP (1)

A

22,4dm^3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

empirical formula (1)

A

simplest formula of a compound in ratio

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

molecular formula (1)

A

true formula of compound based on number of atoms in physical substance

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

how to get empirical formula (3)

A
  1. assume 100g sample using percentage comp.
  2. find no. of mol in each element
  3. simplify ratio using n of moles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how to get molecular formula (3)

A
  1. get molar mass of empirical formula
  2. divide M of molecular formula by M of empirical formula
  3. multiply empirical formula by result in 2.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

stoichiometry (1)

A

ratio and relationship of reactants to get a certain product

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

calculate amount of an ingredient (4)

A
  1. balance equation
  2. get no of mol
  3. use ratio to get mol of substance working out
  4. calc mass of substance u need
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

molar gas volume definition (1)

A

volume of gas at STP

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

limiting reactant (1)

A

reactant that moles will be used up first

17
Q

percentage yield (2)

A

percentage of physical product available compared to amount that should be formed
this is often different due to impure substances

18
Q

actual yield (2)

A

actual amount of product formed, always diff to theoretical yield

19
Q

theoretical yield (1)

A

amount of product that should be formed based on ratios

20
Q

percentage yield formula (1)

A

actual yield/theoretical yield x 100

physics 2021 (9 decks)

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