S2O2 because the molecular formula of SO is just SO because they are both diatomic elements, but the empirical formula is just the but mot simplified, or S2O2.
I googled it and someone said fire extinguisher and a refridgerator ...
Answer:
The concentration of [A⁻] is 0,0166M
Explanation:
In the equilibrium of a weak acid:
HA ⇄ A⁻ + H⁺
The solution of a weak acid contains, initially, the concentration of HA is Y. In equilibrium, the concentrations of each compound are:
[HA] = Y-x
[A⁻] = x
[H⁺] = x
That means [H⁺] = [A⁻].
The pH is defined as -log₁₀ [H⁺]. As the pH was 1,78:
1,78 = -log₁₀ [H⁺]
0,0166M = [H⁺]
As [H⁺] = [A⁻], <em>the concentration of [A⁻] is 0,0166M</em>
<em></em>
I hope it helps!
Answer:
94.7 g
The limiting reactant is CuCl2
Explanation:
The limiting reagent is the reagent with the least amount of moles. Converting grams to moles, you should find that there is 4.11 mol Mg and 1.49 mol CuCl2. CuCl2 is the limiting reagent.
The limiting reagent is what you will use to determine how much product you have. By stoichiometry, you can see that for every mole of CuCl2, you have one mole of Cu. So, that means we have 1.49 mol Cu. Convert to grams. Your answer should be 94.7 g.
