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    latoyd's Avatar
    latoyd Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 27, 2010, 11:40 AM
    How many grams of barium in 1.82 barium hydroxide
    latoyd's Avatar
    latoyd Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Sep 27, 2010, 11:40 AM
    How many grams barium hydroxide is made from 3.94 grams of barium
    lemon14's Avatar
    lemon14 Posts: 143, Reputation: 9
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    #3

    Sep 27, 2010, 12:36 PM
    MBa(OH)2 = ABa + 2AO + 2AH = 137 + 2*16 + 2*1 = 171 (this is the molecular mass for barium hydroxide)

    in 171 grams of Ba(OH)2... there are... 137 grams of Ba
    in x grams of Ba(OH)2... there are... 3.94 grams of Ba

    From now on I think you can find the quantity of Ba(OH)2

    Good luck! :)
    lemon14's Avatar
    lemon14 Posts: 143, Reputation: 9
    Junior Member
    		  
    #4

    Sep 27, 2010, 12:40 PM
    This is similar to the other question:

    1. calculate the molecular mass for Ba(OH)2 = 171
    2. in 171 grams of Ba(OH)2... there are... 137 grams of Ba
    in 1.82 grams of Ba(OH)2... there are... y grams of Ba
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