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November 01, 2025, 01:18:43 pm
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Author Topic: year 11 chem help  (Read 730 times)  Share 

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Maz

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year 11 chem help
« on: August 29, 2015, 08:15:53 pm »
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hey
i have a question...
90000L of rainwater with an average hydrogen ion concentration of 0.0001 g/L was collected and stored in a glavanished iron tank. After several moths the pH of the water was found to be 7 ([H+] = 0.0000001 mol/L). Assuming the zinc was the only material in contact with the water, calculate the
a) mass  of zinc that would have dissolved
b) the concentration of zinc ion, in mol/L, in the rain water
thankyou in advance
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