hey Geniuses,
please solve this question calculate the molality and molarity of a solution made by mixing equal volumes of 30% by weight of H2 s o4(density = 1.20) and 70% by weight of H2 s o4 density equal( 1.60g/ml)?
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☞HEYA MATE☜
⚫ H2SO4= 98
weight of 30% of H2SO4 soln = 1.218 g = 1000 ml * 1.218 g/ml =1.218g (v*d)
wt. of H2SO4 (solute) = 1218*30/100 = 365.4 g
wt. of H20 (solvent) = 1218-365.4
now , total wt. of H2SO4 = 365.4+1127 = 1492.4 g
70% of H2SO4 SOln = 1000 ml * 1.61 g/cc =1610g
wt. of H2SO4 (solute) = 1610*70/100 = 1127 g
wt. of H2O (solvent) = 1610-1127 = 483 g
now, tota wt. of H2O (Solvent)= 852.6 + 483 = 1335.6 g
finalllllyyyy, molarity = wt*100/molecular wt.* wt. of solvent = 1492.4*1000/98*1335.6 = 11.4
☃️HOPE IT HELPS UH ☃️
⚫ H2SO4= 98
weight of 30% of H2SO4 soln = 1.218 g = 1000 ml * 1.218 g/ml =1.218g (v*d)
wt. of H2SO4 (solute) = 1218*30/100 = 365.4 g
wt. of H20 (solvent) = 1218-365.4
now , total wt. of H2SO4 = 365.4+1127 = 1492.4 g
70% of H2SO4 SOln = 1000 ml * 1.61 g/cc =1610g
wt. of H2SO4 (solute) = 1610*70/100 = 1127 g
wt. of H2O (solvent) = 1610-1127 = 483 g
now, tota wt. of H2O (Solvent)= 852.6 + 483 = 1335.6 g
finalllllyyyy, molarity = wt*100/molecular wt.* wt. of solvent = 1492.4*1000/98*1335.6 = 11.4
☃️HOPE IT HELPS UH ☃️
Anonymous:
Thanks a lot!!
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