Question

i need help urgently please answer this question
what is the number of molecules in 50.0 g of ice?

Answer 1

Number of molecules in 50 gram of ice is equal to 1.673 × 10^24

Explanation:

Molar mass of water = 18 grams

This means 18 grams of water contains 1 mole of molecules i.e 6.022 x 10^23

1 gram of ice contains = 6.022 x 10^23 / 18 molecules.

Hence 50 grams of ice contains = 6.022× 10^23 /18 × 50

= 16.73 × 10^23

or 1.673 ×10^24 molecules