When an aqueous NaCl solution is electrolyzed, how many faradays need to be transferred at the anode? How do you write a net ionic equation for a precipitation reaction? How do you write net ionic equations? Consider the reaction when aqueous solutions of sodium sulfide and copper(II) ...
This portion of the experiment involves the sublimation of dry ice (solid carbon dioxide, CO_ 2 ). Write an equation (don't forget states of matter!) for this process. Use kinetic theory to explain why liquid water may be converted into ice cubes in a freezer....
count the cells in one of the smaller squares, and proceed in a pattern (such as top row, left to right, move one row down, left to right, etc.) to count cells in all 16 squares. To avoid double-counting, set a rule such as “DO count...
having a stressful day at work, waking up “on the wrong side of the bed,” going to a certain uncomfortable place (like the mall), listening to the kids fight – virtually anything could set the stage for being triggered later on. When you are trying to identify your emotional triggers...
Write the balanced equation (not the mechanism) for the protonation of nitric acid by sulfuric acid, represented as an equilibrium expression. Nitric acid is a component of acid rain that forms when gaseous nitrogen dioxide pollutant reacts with gaseous oxygen and liquid water...
stronger the base, and the larger the value of Ka, the stronger the acid. By multiplying Ka by Kb, you receive the Kw, or the dissociation constant for water, which is 1.0 x 10^-14. When finding the Kb from the Ka, it is necessary to connect these various parts of the equation. ...
Freezing point depression is calculated using Raoult's Law and the Clausius-Clapeyron Equation to write an equation called Blagden's Law. In an ideal solution, freezing point depression only depends on solute concentration. Freezing Point Depression Problem ...
Step 1: Write down the quantity you want to convert (in this case, 38 inches). Step 2: Identify the conversion factor between inches and centimeters. As mentioned, the conversion factor is that 1 inch is equal to 2.54 centimeters.
2. Write Ka as Ratio of Conjugate Base to Acid The dissociation constant Kais [H3O+] [CH3CO2-] / [CH3CO2)H]. 3. Plug in Values from the Table Ka= x2/(0.9 – x) 4. Note that x is Related to pH and Calculate Ka As noted above, [H3O+] = 10-pH. Since x = [H3O+] and...
1. Explain how to identify the concentration of vinegar in an experiment. 2. Explain how to calculate the molarity of acetic acid ( H C 2 H 3 O 2 ). Derive Ka and pKa, starting from the chemical equation for the dissociation of a strong acid (HA) in water. ...