Question

Calculate normality molarity and molalityof 5% H2so4 and 8% of HNO3 ?

Answer 1

Answer:

Well, we are given percentage concentration by mass, and solution density…and thus we can address…

(i) Molarity=Moles of solute Volume of solution

=0.98×1.8∙g98.08∙g∙mol−11×10−3∙L=18.0∙mol∙L−1

And thus we work from a 1∙mL volume of SOLUTION…for which water is present in a trifling 0.036∙g≡0.036∙mL quantity…

molality=0.98×1.80∙g98.08∙g∙mol−10.036×10−3∙kg=500∙mol∙kg−1

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