I don’t really know if this is right but I think the answer is D because I have to go eat food
Answer:
group a
Explanation: because they are closet together
i think if it is wrong im sorry
The answer is A, I hope this helps
Answer:
The correct answer is <em>c. 3.67 × 10⁻¹¹</em>
Explanation:
The dissociation equilibrium and ICE table for FeCO₃ is the following:
FeCO₃ (s) ⇄ Fe²⁺(aq) + CO₃²⁻(aq)
I 0 0
C +s +s
E s s
At equilibrium, the solubility product contant (Ksp) expression will be:
Ksp= [Fe²⁺] x [CO₃²⁻]= s x s = s²
Given: s= 6.06 x 10⁻⁶ M, we calculate Ksp as follows:
Ksp= s²= (6.06 x 10⁻⁶ M)²= 3.67 x 10⁻¹¹
Thus, from the given options the correct is <em>c. 3.67 × 10⁻¹¹</em>
Molar mass of N = 14 g/mol
Molar mass of O2 = 32 g/mol
Adding both masses = 46 g/mol
Actual molar mass/ Empirical molar mass = 138.02 / 46 = 3
Now multiplying this co effecient with empirical fomula NO2 = 3(NO2)
= N3O6
So according to above explanation,
<span>D) N3O6, is the correct answer.</span>
