SDN members see fewer ads and full resolution images. Join our non-profit community!

Chemistry Problem

Discussion in 'Pre-Medical - MD' started by MUN2005, Dec 3, 2001.

  1. MUN2005

    MUN2005 Miner? 7+ Year Member

    266
    0
    Aug 19, 2001
    Canada
    Any chemistry majors here? I know this isn't really a 'pre-med' topic, but I couldn't find anywhere else to put it. If anyone can help solve this, Please!

    "Determine the value of 'X' in the formula of the hydrate, ZnSO4.xH20, given that 1.450g of the hydrate produced 0.6539g of water when heated to form the anhydrous salt."

    I really appreciate anybody helping me out, thanks alot!
     
  2. SDN Members don't see this ad. About the ads.
  3. mpp

    mpp SDN Moderator Moderator Emeritus 10+ Year Member

    3,398
    15
    Jan 17, 2001
    Portland, OR
    The mass of the water (18 g/mole * x) divided by the mass of the hydrate (161.5 g/mole + 18 g/mole * x) must equal the mass of water to hydrate (0.6539/1.450).

    Solve for x.
     
  4. Original

    Original Ogori-Magongo Warrior 7+ Year Member

    1,823
    3
    Sep 2, 2001
    Good work mpp! I taught you well ;)
     

Share This Page