5.57 × 10²⁵ molecules of Br₂ will have a mass of 14862.33g
HOW TO CALCULATE MASS:
- The mass of an element can be calculated by multiplying the number of moles by its molar mass. That is;
mass (g) = moles (mol) × molar mass (g/mol)
- However, the number of moles in 5.57 × 10²⁵ molecules of Br₂ will be calculated first by dividing the number of molecules by Avogadro's number.
no. of moles = 5.57 × 10²⁵ ÷ 6.02 × 10²³
no. of moles = 5.57/6.02 × 10²⁵-²³
no. of moles = 0.93 × 10²
no of moles = 93 moles
Molar mass of Br₂ = 159.81g/mol
Mass of Br₂ = 93 × 159.81
Mass of Br₂ = 14862.33g
- Therefore, 5.57 × 10²⁵ molecules of Br₂ will have a mass of 14862.33g.
Learn more: brainly.com/question/10384503?referrer=searchResults
For p<span>rincipal quantum number n=4:
1) a</span><span>zimuthal quantum number (l) can be l = 0...n-1:
l = 0, 1, 2, 3.
</span><span>The azimuthal quantum number determines its orbital angular
momentum and describes the shape of the orbital. </span><span>
2) m</span>agnetic quantum number (ml) can be ml = -l...+l.
ml = -3, -2, -1, 0, +1, +2, +3.
<span>Magnetic quantum
number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.
3) t</span>he spin quantum
number (ms), is the spin of the electron.
ms = +1/2, -1/2.