chemistry calculations

?
calculate the relative formula mass of Ne3Na2(O2)3
202.6
1 of 5
Find the empirical formula, with 0.75g of calcium and 0.39g of sulfur.
Ca2S
2 of 5
If an atom contained 13 electrons, 15 neutrons and 13 protons, what would the mass number of the atom be?
28
3 of 5
how do you calculate percentage yield?
actual yeild/theoretical yield x 100
4 of 5
A reaction has a theoretical yield of 6.3g. It has an actual yield of 2.6g. Calculate the percentage yield. (to 1 dp)
41.3%
5 of 5

Other cards in this set

Card 2

Front

Find the empirical formula, with 0.75g of calcium and 0.39g of sulfur.

Back

Ca2S

Card 3

Front

If an atom contained 13 electrons, 15 neutrons and 13 protons, what would the mass number of the atom be?

Back

Preview of the front of card 3

Card 4

Front

how do you calculate percentage yield?

Back

Preview of the front of card 4

Card 5

Front

A reaction has a theoretical yield of 6.3g. It has an actual yield of 2.6g. Calculate the percentage yield. (to 1 dp)

Back

Preview of the front of card 5

Comments

No comments have yet been made

Similar Chemistry resources:

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