Chemistry
Four grams of caustic soda contains:
(a) 6.02 x 1023 atoms of it
(b) 4 g atom of sodium
(c) 6.02 x 1022 molecules
(d) 4 moles of NaOH
Mole Concept
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Answer
6.02 × 1022 molecule
Reason —
Molar mass of NaOH = Na + O + H = 23 + 16 + 1 = 40 g
40 g of NaOH contains 6.022 × 1023 molecules
∴ 4 g of NaOH contains
= x 4
= 6.02 × 1022 molecules
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