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Q.

The molecular mass of HNO3 is_____.

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a

65 u

b

62 u

c

64 u

d

63 u

answer is B.

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Detailed Solution

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  • HNO3 is the molecular formula of Hydrogen nitrate.
  • The molecular mass of Hydrogen nitrate 
    =the atomic mass of   H  +  the atomic mass of  N  +  3  ×  the atomic mass of O
    =1+14+48=63 u
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