Answer:
Explanation:
Given data:
1) How many particles of water are there in 14 moles?
Answer:
84.308 × 10²³ particles
Explanation:
Given data:
Number of moles = 14 mol
Number of particles = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
One moles = 6.022 × 10²³ particles
14 mol × 6.022 × 10²³ particles / 1 mol
84.308 × 10²³ particles
2) How many moles of forks do you have if there are 1.4 x 1027 forks?
Answer:
0.23 × 10⁴ moles
Explanation:
Given data:
Moles of fork = ?
Number of moles of fork = 1.4 x 10²⁷forks
Solution:
one mole = 6.022 × 10²³ fork
1.4 x 10²⁷forks × 1 mol / 6.022 × 10²³ fork
0.23 × 10⁴ moles
3) How many molecules are in 23 moles of oxygen?
Answer:
138.506 × 10²³ molecules
Explanation:
Given data:
Number of moles = 23 moles
Number of molecules = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
one mole = 6.022 × 10²³ molecules
23 mol × 6.022 × 10²³ molecules / 1 mol
138.506 × 10²³ molecules
4) How many atoms in 3.00 moles of water?
Answer:
18.066 × 10²³ atoms
Explanation:
Given data:
Number of moles = 3.00 moles
Number of atoms = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
one mole of water = 6.022 × 10²³ atoms of water
3 mol × 6.022 × 10²³ atoms / 1 mol
18.066 × 10²³ atoms
5) How many molecules of methane do you have in 0.99 moles of methane?
Answer:
6 × 10²³ molecules
Explanation:
Given data:
Number of moles of methane = 0.99 moles
Number of molecules = ?
Solution
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
one mole of methane = 6.022 × 10²³molecules of methane
0.99 mol × 6.022 × 10²³ molecules / 1 mol
6 × 10²³ molecules
