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Topic: dilution question  (Read 5430 times)

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kate1

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dilution question
« on: February 28, 2006, 12:12:34 AM »
I don't know how to do this question :( can anyone help me plz tanks

a 0.1430 g sample of copper was dissolved in 20 ml of 6 mol/L HNO3 and diluted to 100.0 ml volumetric flask.wats its concentration of copper in g/L
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Offline mike

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Re:dilution question
« Reply #1 on: February 28, 2006, 12:19:21 AM »
Well the volumetric flask fixes the volume at 100mL = 0.1L

And the amount of copper is 0.1430g

concentration in g/L  = mass/volume
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kate1

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Re:dilution question
« Reply #2 on: February 28, 2006, 12:33:26 AM »
so basicly the answer would be .1430/.1= 1.4 g/l ???

it was that easy!
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Offline mike

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Re:dilution question
« Reply #3 on: February 28, 2006, 12:46:16 AM »
I believe so :)
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