Question

36 g of water is equal to_______ . *



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Answer 1

Answer:

18 gm of water is equal to 1 mole of it.... hence 36 gm of water is equal to 2 moles of it.... = 2 moles.

Answer 2

✬ Answer:- ✬

36 g of water is equal to 2 moles of H2O molecules.

JUSTIFICATION:-

We know,

• Atomic mass of H2O = 18 u
• Avogadro Number = 6.022 × 10^23 (Not required)
• No. of moles = (Given Mass)/(Molar Mass)

∴ Molar mass of H2O = 18 g

[∵ Atomic mass = 18 u]

∴ No. of moles = (36 g)/(18 g)

= 2 moles. (of water molecules.)