chemistry

  • Created by: j.leigh12
  • Created on: 26-03-18 16:53
How do you cnvert cm3 into dm3?
You divde by 1000 . So 1 cm3 is equal to 0.001dm3.
1 of 10
What are volume and concentration measured it?
Volume: cm3, ml3, dm3 concentration: mol/dm3
2 of 10
How do you find relative molar mass?
You first have to determine the atomic structure of the molecule. Then you must refer to a peiodic table. Multiply the mass of the element by how many of them there are, then finally add them all together.
3 of 10
What is the equation for finding the concentration of a solution?
Number of moles divided by the volume (in dm3) (Units = mol/dm3)
4 of 10
How do you figure out how many moles are in a substance?
given the mass of the substance that you are investigating and the molecular/ atomic structure of it, you can figure out the number of moles by dividing mass of the substance by the molar mass as the molar mass of a substance is equal to one mole.
5 of 10
What is avogadros constant?
6.02x 10^23 this is how many atoms are in a single mole of any substanc.
6 of 10
what do all gases have in common at room temp and pressure with the same number of moles?
They will all occupy the same space.
7 of 10
How do you calculate atom economy?
Relative formula mass of desired product divided by the relative formula mass of all reactants.
8 of 10
How do you calculate percentage yeild?
mass of product made (in g) divided by the maximum theoretical mass of product (in g)
9 of 10
Reasons for a reaction to not have a percentage yeild of 100%?
Reactants could be partially lost during transferance. ther could be multiple products and some of the reactants might not react.
10 of 10

Other cards in this set

Card 2

Front

What are volume and concentration measured it?

Back

Volume: cm3, ml3, dm3 concentration: mol/dm3

Card 3

Front

How do you find relative molar mass?

Back

Preview of the front of card 3

Card 4

Front

What is the equation for finding the concentration of a solution?

Back

Preview of the front of card 4

Card 5

Front

How do you figure out how many moles are in a substance?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Calculations, moles and yield resources »