Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Chemistry (https://www.askmehelpdesk.com/forumdisplay.php?f=68)
-   -   How many calcium atoms are in 51.0 g of calcium? (https://www.askmehelpdesk.com/showthread.php?t=452754)

  • Feb 28, 2010, 05:48 PM
    rlsaldan
    How many calcium atoms are in 51.0 g of calcium?
    I'm working on chemistry homework and I don't understand how to figure this problem out.
  • Mar 1, 2010, 06:34 AM
    Unknown008

    You need to find the amount of moles of Calcium you have in 51.0 g of Calcium.

    The atomic weight of Calcium is 40.

    So, 40 g of calcium has 1 mole.

    Find the number of moles 51 g of Calcium contains.

    Then, 1 mole contains 6.02x10^23 particles, in this case, 1 mole contains 6.02x10^23 atoms.

    When you have the number of moles, you can find the number of atoms! :)

    Post your answer. :)

  • All times are GMT -7. The time now is 05:24 AM.