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CBSE Class 11-science Answered

36% solution of H2SO4 having density 1.2gm/cc. ,find out percentage strength and strength of solution .
Asked by anandsikhar | 12 Aug, 2018, 06:32: AM
answered-by-expert Expert Answer
Consider the 40% is given as volume percentage.
 
36% H2SO4 means 36 ml of H2SO4 is dissolved in water to make the solution 100ml
 
Thus the volume of  H2SO4 = 36 ml
density = 1.3 g/ml
 
as, we know,
 
 D e n s i t y space equals fraction numerator m a s s over denominator v o l u m e end fraction space

m a s s space equals space D e n s i t y space cross times v o l u m e space equals space 1.3 space cross times 36 space equals 46.8 space g

N o w comma space
M a s s space o f space H subscript 2 S O subscript 4 space equals space 46.8 space g

A n d space t o t a l space v o l u m e space o f space s o l u t i o n space equals 100

M a s s space b y space v o l u m e space p e r c e n t a g e space i s space t h e space m a s s space d i s s o l v e d space i n space 100 space m l space o f space t h e space s o l u t i o n comma

t h e r e f o r e comma space m over v space cross times 100 equals space fraction numerator 46.8 over denominator 100 end fraction cross times 100 space equals space 46.8 percent sign
Answered by Ramandeep | 13 Aug, 2018, 12:49: PM
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