Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Chemistry (https://www.askmehelpdesk.com/forumdisplay.php?f=68)
-   -   Mole problems in chemistry (https://www.askmehelpdesk.com/showthread.php?t=76177)

  • Mar 26, 2007, 03:55 PM
    fatblack
    Mole problems in chemistry
    A compound that has one sulphur atom per molecule, contains 17.2% of sulphur by mass.What is the relative molecular mass of this compound?
  • Mar 26, 2007, 03:59 PM
    J_9
    Please refer to this announcement.
  • Mar 22, 2008, 12:28 PM
    Berstas
    1.) Phosphoric acid(HPO4)(aq) + Calcium Hydroxide(Ca(OH)2)(aq) --> ?
    I think it yeilds CaPO4 + 2H30.
    2.) If you have 3.5 moles of Calcium Hydroxide, how many moles of phosporic acid do you have?

    • All times are GMT -7. The time now is 08:09 PM.