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Chemistry
 Online Tutoring : Forum : Quiz Questions - Physical Sciences : Chemistry
Topic Topic: Calculating the charge of an ion via electrolysis Post ReplyNew Question
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System
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Joined: 26 June 2005
Posts: 918
Posted: 26 July 2005 at 4:31pm | IP Logged Quote System

QUIZ QUESTION #403
In an experiment, 0.76g of the element europium was discharged at the cathode by the passage of 0.5A of current for 1930 seconds. Europium has relative atomic mass of 152. The charge on the europium ion is
    A.   (0.76 x0.5 x1930)/ (96500 x152)
    B.   (96500 x0.76)/ (152 x1930 x0.5)
    C.   (0.5 x96500 x0.76)/ (1930 x152)
    D.   (0.5 x1930 x152)/ (96500 x0.76)
 QUIZ QUESTION #403 created by Tutor9195 on 25 July 2005 at 2:04am

Correct answer: D    Correct clicks: 39.23%  Wrong clicks: 60.77%
 
    A.   [23 clicks 17.69%] 
 
    B.   [19 clicks 14.62%] 
 
    C.   [37 clicks 28.46%] 
 
    D.   [51 clicks 39.23%] 
 
Please discuss this quiz question.
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