The Henderson-Hasselbalch equation is helpful when determining the pH of a solution using pKa and known concentrations of conjugate base, salt, and acid. It may also be used to find concentrations of conjugate base, salt, or acid if the pH is known. ...
creating new entities creating new fields reading molecules from a file insert or update a row evaluator create or find a relationship adding an edge to a data tree exporting data to a file connect to an external database create a new chemterm field create a new dynamic url field create a...
The pH of a solution is a measure of the concentration of hydrogen ions. pKa (acid dissociation constant) and pH are related, but pKa is more specific in that it helps you predict what a molecule will do at a specific pH. Essentially, pKa tells you what the pH needs to be in order ...
To calculate the pH of a buffer solution when base is added, the Henderson-Hasselbalch equation, pH = pKa + log (acid/base), is used. The mol of base is added to the buffer's base, and the base's mol is subtracted from the buffer's acid. These new mols are used to find the ...
You want to make 406 mL of a solution with a concentration of 350 g/L. How much solute (g) will you need? Find the value for each of the solutions below. 1) What is the molarity of a 125 mL solution containing 0.050 moles of NH3?...
q2. you need to produce a buffer with a ph of 5.75. you have a solution with 30.0g of acetic acid (pka=4.75). how many moles of sodium acetate must you add to achieve the desired ph? a.) 0.3 mol b.) 5 mol c.) 0.5 mol d.) 3 mol q3. find [h + ] in a solution of ...
Derive a mathematical equation to find reversible work using the following format of the virial equation: p = (RT/V_m)(1 + B/V_m) Solve the following. [{Image src='average2941717848833678125.jpg' alt='average' caption=''}] Solve the following: ...
RESULTS: We observe bimodal distributions of extracellular signal-regulated kinase (ERK) responses to epidermal growth factor (EGF) stimulation, which are generally thought to indicate bistable or ultrasensitive signaling behavior in single cells. Surprisingly, we find that a simple MAPK/ERK-cascade ...
(2.1), we find that it is equivalent to the perturbed integral Volterra equation uðtÞ ¼ gðtÞ þ ða à ðÀAÞuÞðtÞ þ ðb à uÞðtÞ; ð2:5Þ where aðtÞ ¼ b 2a t2 þ c a t and bðtÞ ¼ À 1 a and gð...