The reaction below shows how silver chloride can be synthesized. AgNO3 NaCl Right arrow. NaNO3 AgCl How many moles of silver chl
2 answers:
From 15 mol of Silver nitrate, the moles of silver chloride produced have been 15 mol. Thus, option B is correct.
The balanced chemical reaction for the synthesis of silver chloride has been:
From the balanced equation, since there has presence equal moles of silver nitrate and sodium chloride, the moles of silver chloride formed has been equivalent. Thus, 1 mole of silver nitrate gives 1 mole of silver chloride.
The moles of silver nitrate available are,
The moles of silver nitrate produced can be given as:
Thus, the moles of silver chloride produced have been 15 mol. Thus, option B is correct.
For more information about moles produced, refer to the link:
Answer:
15 mol
Explanation:
the balanced equation is AgNO3 + NaCl > NaNO3 + AgCl.
the stequiometry of the reactions says: one mol of silver nitrate reacts with one one mol of silver chloride to produce one mol of silver nitrate and one mol of sodium chloride.
by proportions, if you have 15 mol of AgNO3 you're gonna have 15 mol of AgCl
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Answer:
The pH of the mixture is approximately 4.2.
There's no equilibrium calculation involved if HCl is used instead of lactic acid. The pH of that solution will be approximately 3.7.
Explanation:
<h3>Lactic Acid</h3>Lactic acid is a monoprotic acid. In other words, each lactic acid molecule can be ionized to release only one proton. Therefore, lactic acid will react with NaOH at a 1-to-1 ratio. The result will be one unit of the anion of lactate ion.
Lactic acid is in excess. All NaOH will be consumed. Before any dissociation takes place, the solution will contain 0.2 mM of lactic acid and 0.4 mM of lactate ions.
Lactic acid is a weak acid. The following equilibrium will take place in the solution:
.
Let the increase in the concentration of protons in the solution be . Construct a RICE table:
.
The pKa value of lactic acid is 3.86. Therefore, . By the definition of the acid dissociation constant
,
.
Given that , solve for
:
.
There might be more than one solutions. However, the correct solution shall ensure that all concentrations are greater than zero. In this case,
.
By the definition of pH,
.
The Henderson-Hasselbalch equation will yield a similar result.
<h3>HCl</h3>Similar to lactic acid, HCl is also monoprotic. The solution will contain 0.2 mM of HCl and 0.4 mM of NaCl before any ionization takes place.
Unlike lactic acid, all that 0.2 mM of HCl will ionize to produce protons and chloride ions. The final proton concentration in the solution will be 0.2 mM. As a result,
.