Draw the condensed structural formula for the ammonium salt formed when lidocaine reacts with hcl.
1 answer:
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This problem is providing us with the mass of hydrochloric acid and the volume of solution and asks for the pH of the resulting solution, which turns out to be 1.477.
<h3>pH calculations</h3>In chemistry, one can calculate the pH of a solution by firstly obtaining its molarity as the division of the moles of solute by the liters of solution, so in this case for HCl we have:
Next, due to the fact that hydrochloric acid is a strong acid, we realize its concentration is nearly the same to the released hydrogen ions to the solution upon ionization. Thereby, the resulting pH is:
Which conserves as much decimals as significant figures in the molarity.
Learn more about pH calculations: brainly.com/question/1195974
<u>Answer:</u> The excess reactant for the given reaction is
<u>Explanation:</u>
Limiting reagent is defined as the reagent which is present in less amount and it limits the formation of products.
Excess reagent is defined as the reagent which is present in large amount.
For the given chemical reaction:
We are given:
Moles of calcium nitrate = 3.4 mol
Moles of lithium phosphate = 2.4 mol
By stoichiometry of the reaction:
3 moles of calcium nitrate reacts with 2 moles of lithium phosphate
So, 3.4 moles of calcium nitrate will react with = of lithium phosphate
As, the given amount of lithium phosphate is more than the required amount. So, it is considered as an excess reagent.
Thus, calcium nitrate is considered as the limiting reagent because it limits the formation of products.
Hence, the excess reactant for the given reaction is