Answer:
I would personally say July 29 (B)
Explanation:
The net ionic equation is
Ag⁺(aq) +Cl⁻(aq) → AgCl(s)
<u><em>Explanation</em></u>
AgNO₃ (aq) + KCl (aq)→ AgCl(s) +KNO₃(aq)
from above molecular equation break all soluble electrolyte into ions
Ag⁺(aq) +NO₃⁻ (aq) + K⁺(aq) +Cl⁻(aq) → AgCl (s) + K⁺(aq) + No₃⁻(aq)
cancel the spectator ions in both side of equation =K⁺ and NO₃⁻ ions
The net ionic equation is therefore
= Ag⁺(aq) + Cl⁻(aq) → AgCl(s)
To be able to determine the number of moles that a certain number of molecules comprises, we simply divide the number of molecules by the Avogadro's number which is equal to 6.022 x 10^23.
n = M/A
where n is the number of moles, M is the number of molecules, and A is Avogadro's number. Substituting the known values,
n = (4.15 x 10^23 molecules)/(6.022 x 10^23 molecules/mol)
Simplifying,
n = 0.689 moles
<em>Answer: 0.689 moles</em>
100 %cuni calculate the amounts of solid s and liquid
Answer:
5.99 moles of
Explanation:
In this case, we can start with the <u>decomposition</u> of , so:
<u>(Reaction 1)</u>
The can react with carbon to produce :
<u>(Reaction 2)</u>
If we 8.99 mol of , we can calculate the moles of that we need. In reaction 2 we have a <u>molar ratio</u> of 1:2 (2 moles of will produce 1 mol of ):
With this value and using the <u>molar ratio</u> in reaction 1 (3 moles of are producing by each mol of ), so:
So, we will need 5.99 moles of to produce 8.99 mol of .
I hope it helps!