Answer: When an atom becomes a positive ion it pulls it's electrons closer, decreasing it's radius moreover, when it becomes a negative ion, it pulls it's electrons closer and decreases the radius
I hope this helps :)
Molarity = number of moles / volume
Volume = number of moles / molarity
= 25/3
= 8.3333 L
Answer: The aluminium trihalide assists in the heterolytic bond fission of the bromine molecule.
Explanation:
The electrophilic aromatic bromination of acetalinide with molecular bromine requires the formation of Br+. This specie is formed when an Aluminum trihalide reacts with bromine. The Br-Br bond breaks heterolytically such that charged species are produced. This Br+ participates in the electrophilic aromatic substitution and AlX4- is formed where X4 shows a tetrahalide complex of aluminium
You have to use everything that is given since you have to know which is the limiting reactant. We find the limiting reactant by calculating the number of moles of each reactant and compare the number of moles. The limiting reactant would be the one that is consumed fully by the reaction.
Mass of Li₂O= 719.809 g
<h3>Further explanation</h3>
Given
1,060 g of CO₂
Required
Mass of Li₂O
Solution
Reaction
<em>Possible compound : Li₂O </em>
Li₂O(aq) + CO₂(g) → Li₂CO₃(aq)
mol CO₂(MW=44 g/mol) :
= 1,060 g : 44 g/mol
= 24.09
From the equation, mol ratio of LiO : CO₂ = 1 : 1, so mol Li₂O : 24.09
Mass Of Li₂O(MW=29.88 g/mol) :
= mol x MW
= 24.09 x 29.88
= 719.809 g