Question

calculate the number of molecule in 2 drop of water if one drop of water equals to 0.9 gram​

Answer 1

Answer:

Avagadro Number/10

Explanation:

Weight of 2 drops = 2 × 0.9g = 1.8grams

No. of moles = mass/molar mass = 1.8g/18g = 1/10 moles

Hence no. of molecules = no. of moles × Avagadro Number = 1/10× Avagadro Number