1.3 chemical calculations

studied byStudied by 0 people
0.0(0)
learn
LearnA personalized and smart learning plan
exam
Practice TestTake a test on your terms and definitions
spaced repetition
Spaced RepetitionScientifically backed study method
heart puzzle
Matching GameHow quick can you match all your cards?
flashcards
FlashcardsStudy terms and definitions

1 / 11

flashcard set

Earn XP

Description and Tags

moles, concentrations, gas equations.

12 Terms

1

Moles definition

One mole of any substance contains the same number of particles as there are atoms of C-12 in exactly 12g Carbon-12.

New cards
2

Formulae for actual number of particles.

amount in moles = number of particles/ Avogadro’s number.

New cards
3

formulae for moles

Moles = Mass/ Mr

New cards
4

formula for percentage composition.

% = total Ar of element/total Mr of compound x 100

New cards
5

formula for mass of element

mass of element = Ar of element/ Mr of compound x mass of compound

New cards
6

Formulae for % yield

% yield = actual mass of product/ maximum mass of product x 100

New cards
7

Formula for atom economy

atom economy = mass required of product/mass of reactants or products x 100

New cards
8

Formula for moles in liquids

n = concentration (mol dm-3) x volume (dm-3)

New cards
9

The formula for moles in gases when conditions are:

25 C → 1 atm

0 C → 1 atm

n = volume / molar volume

New cards
10

Ideal gas equation

PV = nRT

New cards
11

What do the symbols in PV = nRT stand for?

  • P = Pascals

  • V = volume (m3)

  • n = moles

  • R = constant in data booklet

  • T = temperature (K)

New cards
12

Combined Gas Law:

P1V1/T1 = P2V2/T2 (remove whatever the question states is constant.)

New cards

Explore top notes

note Note
studied byStudied by 18 people
899 days ago
5.0(1)
note Note
studied byStudied by 32 people
794 days ago
5.0(1)
note Note
studied byStudied by 1 person
28 days ago
5.0(1)
note Note
studied byStudied by 103 people
856 days ago
5.0(1)
note Note
studied byStudied by 3 people
761 days ago
5.0(1)
note Note
studied byStudied by 10 people
693 days ago
4.5(2)
note Note
studied byStudied by 39 people
953 days ago
5.0(1)
note Note
studied byStudied by 11 people
776 days ago
5.0(1)

Explore top flashcards

flashcards Flashcard (33)
studied byStudied by 3 people
792 days ago
5.0(1)
flashcards Flashcard (62)
studied byStudied by 5 people
765 days ago
5.0(1)
flashcards Flashcard (82)
studied byStudied by 10 people
56 days ago
5.0(1)
flashcards Flashcard (40)
studied byStudied by 5 people
171 days ago
5.0(1)
flashcards Flashcard (20)
studied byStudied by 115 people
507 days ago
5.0(1)
flashcards Flashcard (25)
studied byStudied by 12 people
468 days ago
5.0(1)
flashcards Flashcard (25)
studied byStudied by 2 people
661 days ago
5.0(1)
flashcards Flashcard (38)
studied byStudied by 38 people
8 days ago
5.0(1)
robot