First slide
Hydrogen Peroxide
Question

Match the following

List-1 List-II
A) 50vol of H2O2 1) 300 g/L of H2O2
B) 1 vol of H2O2 2) 44.8 vol of H2O2
C) 30% (w/V) of H2O2 3) 22.4 vol of H2O2
D) 4 molar H2O2 4) 4.46 molar of H2O2
  5) 0.303 g/100 ml of

 

Easy
Solution

A) 10 vol.strength = 0.893M = 1.786N = 3.03% (w/v)
10 vol.strength ⇒ 3.03% (w/v)
50 vol.strength ⇒ ??

50×3.0310=15.15%(w/v) M= Volume strength11.2 M=5011.2=4.46M H2O2 solution

B) 1 volume strength of H2O2
10 vol = 3.03% (w/v)
1 vol = ??
 

\large \frac{1\times 3.03}{10} = 0.303% (w/v) (or) 0.303gr/100ml\;of\;H_2O_2\;sol


 

 

C) 30%(w/v) of H2O2 means
 

30 gr of H2O2 present in 100 ml of  H2O2 solution(0.1L) ? gr of  H2O2present in  1000ml of H2O2 solution(1L)   1×300.1=300 gr

i.e.. 300gr/liter
D) 4 MOlar H2O2 solution
10vol = 0.893M
?? vol = 4M

4×100.893=44.79vol of H2O2

 

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