Question

8gm of sulphur is completely burnt to get sulphur dioxide . the number of molecules of sulphur dioxide obtained is [jee] problem
a) 6*10^23
b)3*10^23
c)1.5*10^23
d) 7.5*10^23

Answer 1

S + O2 =SO2
1 mole of S gives 1 mole of SO2
then 8/32 s will give 8/32 mole SO2
therefore molecules= mole ×NA = 1/4 × 6 × 10^23
= 1.5 × 10^23

Answer 2

Answer:

S + O2 =SO2

1 mole of S gives 1 mole of SO2

then 8/32 s will give 8/32 mole SO2

therefore molecules= mole ×NA = 1/4 × 6 × 10^23

= 1.5 × 10^23

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Explanation: