According to this website:
http://www.drugfuture.com/chemdata/quinizarin.html
the pKa is 9.51. So it's not very acidic. So, what does this mean in terms of my question?
Homework Statement
Given Qunizarin, and if we add NaOH, what would the resulting compound look like?
Homework Equations
Here is what quinizarin looks like: http://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Quinizarin.svg/620px-Quinizarin.svg.png
The Attempt at a Solution
I'm...
Homework Statement
In a lab, we are synthesizing salicylic acid fro methyl salicylate. The following steps are used:
1) Add NaOH to Methyl Salicylate
2) Heat solution
3) When solution has cooled, add HCl, then filter product
My question is, what is present in the filtrate when filtering...
Homework Statement
I am reacting methyl salicylate with sodium hydroxide to produce salicylic acid. However, first it is important to add acid to neutralize the very basic solution.
My question is, when determining the amount of HCl to add, do I need to take into consideration the methyl...
Homework Statement
I am reacting methyl salicylate with sodium hydroxide to form salicylic acid. I am required to find the equivalent of sodium hydroxide, however I've never even heard of such a term. I didn't learn anything about "equivalent" in Intro Chem. Can anyone help? There are no...
Homework Statement
Consider a Galvanic Cell composed of one half-cell containing 0.050 M copper(II) sulfate with a copper electrode and another half-cell containing an unknown concentration of aluminum chloride, AlCl3, and an aluminum electrode.
a. Write the Nernst equation for this...
Homework Statement
A student constructs a galvanic cell with one half-cell containing 0.11M ferrous nitrate, Fe(NO3)2, and the other half-cell made from 50.0ml of 0.15M oxalic acid and 1.0ml of the 0.11M ferrousnitrate. Ferrous oxalate is only slightly soluble. The half-cells contain iron...
Homework Statement
At a beach the light is generally partially polarized due to reflections off sand and water. At a particular beach on a particular day near sundown, the horizontal component of the electric field vector is 1.8 times the vertical component. A standing sunbather puts on...
I also know that P = V^2 / R
Taking the ratio of Pmax to Pmin we get
Pmax/Pmin = (Imax / Imin)^2 = ( (E/Zmax) / (E/Zmin) )^2 = 4
So
(sqrt( (R^2) + ((w*Lmax)^2) ) / R)^2 = 4
which implies that
Lmax = R / w (when we solve for Lmax in the above equation)
Thus, pluggin in for P = V^2 / R
we...
Homework Statement
A typical "light dimmer" used to dim the stage lights in a theater consists of a variable inductor L (whose inductance is adjustable between zero and Lmax) connected in series with a lightbulb. The electrical supply is 120 V (rms) at 60.0 Hz; the lightbulb is rated as 120...