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Homework Help: Chemical Reaction, need help!

  1. Mar 1, 2005 #1
    Hey guys could you tell me if I got the right answer; my teacher hasn't went over this material and it is due tomorrow.

    Given the following reaction, how many grams of Zn are required to obtain 2.00g of Au?

    (2.00g of Au)(1 mole Au/179.0g of Au)(3 mole Zn/2 mole Au)(65.39g Zn/1 mole Zn) = 1.10g of Zn

    Is this the proper way and is my answer correct? Thanks
  2. jcsd
  3. Mar 1, 2005 #2
    taht is the correct way of doing it, just be careful of ratios always
  4. Mar 2, 2005 #3


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    And one more thing.Use the same # of significant digits when working with molar masses.

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