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OpenStudy (anonymous):
A saturated solution of ammonium sulfate, (NH4)2SO4, in water at 30 °C contains 78.0 g (NH4)2SO4 per 100.0 g H2O. What is the molality of this solution?
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OpenStudy (chmvijay):
molality = moles of ammonium sulfate /Kg of solvent moles of ammomium sulfate = gram/ molecular weight =78/132.6 = 100 gram of water = 0.1Kg o water plug both values in the first equation u get it
OpenStudy (anonymous):
thanks mate, just figured it out a few min ago. Calculated it and it came out to be 5.9M.
OpenStudy (chmvijay):
yaaa 5.88~ 5.9M ur right
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