Chemistry (C2)

Revision cards for C2

HideShow resource information

Mass/Charge

What is the mass of proton, neutron and electron?

1 of 8

Proton- Mass 1/ Charge +1

Neutron Mass 1/ Charge 0

Electron Mass (Very small)/ Charge -1

2 of 8

what is...

  • CaCo3
  • HNo3
  • MgO
  • NH3
  • KMnO4
  • C2H5OH
  • Ca(OH2)
  • Nacl
  • Na
  • K
  • Cu
3 of 8

  • CALCIUM CARBONATE
  • NITRIC ACID
  • MAGNESIUM OXIDE
  • AMMONIA
  • POTASSIUM MAGANATE
  • ETHANOL
  • CALCIUM HYDROXIDE
  • SODIUM CHLORIDE
  • SODIUM
  • POTASSIUM
  • COPPER
4 of 8

What is a mole?

RELATIVE ATOMOC MASS AND RELATIVE FORMULA MASS = mole

5 of 8

EXAMPLE!

The Mole = Relative atomic/formula mass

So 1 mole of carbon = 12 g

6 of 8

Percentage mass and empirical formula

MgO --> 24g (Mg)    16g (O)

16+24=40

16/40 = 0.4 x100 = 40% (of oxygen)

Therefore Magneisum is 60%

       

7 of 8

Percentage Mass (%) =

Mass of element (Ar) / Relative formula mass (Mr) 

8 of 8

Comments

Florence

Need more information on them because it only covers like half the section

Similar Science resources:

See all Science resources »See all Chemistry resources »