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What else can I help you with?
Explain why ivestigators may spray a crime scene with HCI before using luminol?
Investigators may spray a crime scene with hydrochloric acid (HCl) before using luminol to help remove any potential contaminants or residues that could interfere with the reaction of luminol with blood. This ensures a clean surface for the luminol to detect any hidden blood traces effectively.
How can one effectively solve polyprotic acid problems?
To effectively solve polyprotic acid problems, one should first identify the number of acidic hydrogen atoms in the acid. Then, calculate the equilibrium concentrations of each protonated form of the acid using the acid dissociation constants (Ka values). Finally, use the mass balance and charge balance equations to determine the concentrations of all species in the solution.
How have Canada and the US worked together to solve acid rain?
stop air polution
Calculate the volume of 15M Nitric acid required to make 300mL of 1.7M Nitric acid?
You can use the formula M1V1 = M2V2 to solve the problem. Given that M1 = 15M, V1 = unknown, M2 = 1.7M, and V2 = 300mL, you can rearrange the formula to solve for V1. The volume of 15M Nitric acid required to make 300mL of 1.7M Nitric acid is approximately 10.6mL.
Why must Canada and the us work together to solve the problem of acid rain?
Because events in either country can cause acid rain to drift over the other.
Canada Has to work with the US to solve the problem of acid rain because the US what?
Purchases many of the goods that Canada produces in its factories
Is vandalism a serious crime?
It can be. It depends on what you vandalize. For example: It IS a federal crime to vandalize a reproductive health care facility by gluing locks or pouring butyric acid.
How do i calculate pH given the acid constant?
For a weak acid, HA...HA ==> H^+ + A^- Ka = [H+][A-]/[HA] Plug these values into the Ka equation. You also must know the [HA] that you start with. Solve for [H+] Take -log [H+] = pH
How can one effectively solve buffer problems?
To effectively solve buffer problems, one should first identify the components of the buffer solution (acid and conjugate base), calculate the initial concentrations, and use the Henderson-Hasselbalch equation to determine the pH. Adjusting the ratio of acid to conjugate base or adding more buffer solution can help maintain a stable pH.
What is the concentration of undissociated acid if the hydrogen-ion concentration is 0.0001 M and the acid dissociation constant is 0.0000001?
The equation is acid + water equalizes into hydronium and conjugate base, and Ka (acid dissociation constant) is products divided by reactants. If the Acid = (H+)(base)/Ka, then the acid concentration is (H+)(H+)/Ka, or (0.0001)(0.0001)/0.0000001, which equals 1M.
How much pure acid should be mixed with 9 gallons of a 50 percent acid solution in order to get an 80 percent acid solution?
13.5 gallonsThe 50% acid solution will contain 4.5 gallons of acid & 4.5 gallons of water.So let X be the number of gallons of pure acid to add. You can set up an equation to solve for X:(4.5 + X )------------- = 0.80 (80% solution)(9 + X)The top part of the fraction is the amount of acid in the new 80% solution & the bottom part will be the total amount of solution you have. Cross multiply and solve for x.(9+X)*(0.80) = (4.5+X)*(1)7.2 + 0.8X = 4.5 + X7.2 - 4.5 = 1X - 0.8X2.7 = 0.2XX = 2.7/0.2 = 13.5
Is ascorbic acid weak?
The acid dissociation constant (Ka) is the measure of strength of an acid in solution. Symbolically, as HA is added to solution it breaks down into a proton (H+) and it's conjugate base (A-). The value of Ka is equal to products over reactants (aqueous only i.e. no solids or liquids) . Once you solve for Ka, you can solve for the pKa which is equal to -logKa. The pKa will determine if the acid is weak or strong. Strong acids are more willing to dissociate in water and have a pKa value of <-2. The pKa of ascorbic acid is only 4.2, and so it is a weak acid.
