Atomic mass of nitrogen is 14.
a) How many atoms are present in 2 GAM nitrogen.
b) Find the mass of 4 x 6.022 x 1023 nitrogen atoms
Answers
Answered by
5
Given:
Atomic mass of nitrogen = 14 gram
To find:
- Atoms in 2 gram of nitrogen ?
- Mass of 4 × 6.022 × 10²³ atoms of nitrogen ?
Calculation:
2 grams of nitrogen:
- Number of moles = 2/28 = 1/14 moles.
So, number of atoms is :
Mass of 4 × 6.022 × 10²³ atoms :
- Number of moles = 4 N_(A)/2 N_(A) = 2 moles.
- So, mass = 2 × 14 = 28 grams of Nitrogen.
Hope It Helps.
Similar questions