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Novocaine, $\mathrm{C}_{13} \mathrm{H}_{21} \mathrm{O}_{2} \mathrm{N}_{2} \mathrm{Cl}$ , is the salt of the base procaine and hydrochloric acid. The ionization constant for procaine is $7 \times 10^{-6} .$ Is a solution of novocaine acidic or basic? What are $\left[\mathrm{H}_{3} \mathrm{O}^{+}\right],\left[\mathrm{OH}^{-}\right],$ and pH of a 2.0$\%$ solution by mass of novocaine, assuming that the density of the solution is 1.0 $\mathrm{g} / \mathrm{mL}$

$\begin{aligned} c\left(H_{3} O^{+}\right) &=1.2 \cdot 10^{-5} M \\ c\left(O H^{-}\right) &=8.3 \cdot 10^{-10} M \\ p H &=4.92 \end{aligned}$

Chemistry 102

Chapter 14

Acid-Base Equilibria

Liquids

Rice University

University of Maryland - University College

University of Toronto

Lectures

03:07

A liquid is a nearly incom…

04:38

A liquid is a state of mat…

03:44

The local anesthetic novoc…

05:34

Novocaine, used as a local…

01:32

Hydrogen peroxide is a som…

03:13

The local anesthetic Novoc…

02:30

The anesthetic procaine hy…

08:44

An aqueous solution contai…

02:28

A $0.036 \mathrm{M}$ aqueo…

01:49

A 1.00 L sample of HF gas …

05:33

PROBLEM 14.24 Predict whet…

03:24

What must be the molarity …

05:40

Calculate $\left[\mathrm{O…

01:53

Acid Solutions.A 0.085…

02:04

A $0.050 M$ hydrofluoric a…

06:07

Acrylic acid $\left(\mathr…

02:39

Nicotine, $\mathrm{C}_{10}…

03:19

A 0.085 M solution of a mo…

07:17

06:00

A $0.100 \mathrm{M}$ aqueo…

02:44

The pH of $1.0 \times 10^{…

02:49

A solution of hydrofluoric…

the nature off. A quick solution off salt depends upon the nature of constituent irons off salt, thereby resulting into solution. Also a conjugated, as in bare base pair is shown were kw is ionization of water K a lionization constant for asset while Gaby is for the base. The mask off. No Kaine present in one leader off solution is to person. The moss can be determined us for lows with stones or Toby 20 grand. The molar mass off Nova Cain is to 72.774 ground ball. The number off mole off Nova Kind equivalent to 20 gram is 0.73 Therefore, the concentration off No cocaine in one liter, off 2% Solution is 0.73 As this old no cane consist. The base procaine on hydrochloric acid considered the falling reaction on. We have dissociation constant for us it Sorry, we have ionization constant. That is represented us, Katie. Putting in the values in tow, the ionization constant formula. We have 1.4 in 200 super minus nine. The initial and equally broom concentration for this system can be summarized in a tabular from Ashton No. Substitute the equilibrium concentration into equilibrium expression which gives us the value off Ex turns out to be 1.1 into 10 days Super minus five toe Check that Assumption X is small compared to 0.73 Just calculate as sure it shows that X gives 1.1 into Kendry Super minus five. This is less than 5% off 0.73 hour assumption over here is valid. The equilibrium concentration off hydro in your mind in the solution can be determined from its initial concentration on change. In that concentration, the concentration of hydro Nia mind turns out to be 1.1 into 10. Great super minus five on the concentration off, which turns out to be 1.0 to 10. The super minus nine The pH of solution is determined by taking negative log off. Ex off. I do know him well. The Ph is equal to five

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