how calculate mass of solute

• fat_boy@87

  3 Nov 07, 23:49

  in 0.5dm^3 of 0.5mol/dm^3
• Darkness_hacker99

  3 Nov 07, 23:56

  The useful formula for mole concept are here. Try manipulating it.
  
  
  
• fat_boy@87

  4 Nov 07, 00:01

  how calculate molar mass(is it like oxygen is 16 then O2 is 32)? and mass of solute
• HyuugaNeji

  4 Nov 07, 00:18

  Originally posted by fat_boy@87:

  in 0.5dm^3 of 0.5mol/dm^3

  dm^3 cancel out so left with 0.5*0.5moles=0.25moles.
  
  mass=no of moles * Molar mass=0.25*Mr of the chemical=Answer
  
• unclebutcher

  5 Nov 07, 10:06

  Originally posted by fat_boy@87:

  in 0.5dm^3 of 0.5mol/dm^3

  0.5mol/dm^3 * 0.5dm^3 =0.25mol
  
  0.25mol * Mr = your answer