6,484,649 every three numbers from the right
Answer:
1. 0.207 moles
2. 6.99 moles
3. 4.20 moles
4. 4.65 moles
5. 2.221 × 10²⁴ atoms
6. 2.221 × 10²⁴ atoms
7. 4.979 × 10^18 atoms
Explanation:
The number of moles and atoms can be calculated using the Avagadro's number, which is 6.02 × 10^23 atoms.
mole = number of atoms ÷ Avagadro's number.
1. Mole = 1.25 x 10²³ ÷ 6.02 × 10^23
mole of Boron = 0.207 × 10(23-23)
= 0.207 × 10^0
= 0.207 moles
2. Mole = 4.21 x 10²⁴ ÷ 6.02 × 10^23
mole of Aluminum = 0.699 × 10(24-23)
= 0.699 × 10^1
= 6.99 moles
3. Mole = 2.53 x 10²⁴ ÷ 6.02 × 10^23
mole of Argon = 0.420 × 10(24-23)
= 0.420 × 10^1
= 4.20moles
4. Mole = 2.80 x 10²⁴ ÷ 6.02 × 10^23
mole of Hydrogen = 0.465 × 10(24-23)
= 0.465 × 10^1
= 4.65 moles
5. Number of atoms of Na = 3.69 × 6.02 × 10²³
= 22.21 × 10²³
= 2.221 × 10²⁴ atoms
6. Number of atoms of Na = 3.69 × 6.02 × 10²³
= 22.21 × 10²³
= 2.221 × 10²⁴ atoms
7. Number of atoms of Co = 8.27 x 10⁻⁶ moles × 6.02 × 10²³ atoms
= 49.79 × 10^17
= 4.979 × 10^18 atoms
Temperature is the measure of kinetic energy and when temperature increases so does the particles. heat is the measure of the flow of thermal energy and how to easily understand this is when u feel hot, u adjust the temperature so it’s cooler :)