Titration is used to determine the concentration of an unknown substance via the molar relationship expressed through the chemical reaction equation. Using these relationships, the pH value can be determined by calculating the concentration of hydrogen i
The pH scale measures how acidic or alkaline a substance is. It runs from 0 to 14, with a pH of 7 being neutral, a pH lower than 7 being acidic and a pH higher than 7 being alkaline. The scale is logarithmic, meaning each whole pH value below 7 is ten times more acidic than the...
How to calculate volume of NaOH required for titration How do you prepare the buret for titration? Why is HCl added for the titration of vitamin C? How do you calculate K_a from a titration curve? Calculate the pH of a 0.10 mol/L solution of ascorbic acid, H2C6H6O6(aq), and the...
During a titration of an acid with a base, you are often asked to identify the endpoint. What is the correct definition of the endpoint? a. The point in the reaction when the moles of acid or base added (the titrant) are equal to half th...
... When the titration reaches an endpoint, the amount of titrant is recorded and used to calculate the unknown concentration. What do we learn from titration? In acid-base chemistry, we often use titration to determine the pH of a certain solution. ... Since we know the pH of the ...
Here is the formula used to calculate percent error, along with an example calculation. Key Points: Percent Error The purpose of a percent error calculation is to gauge how close a measured value is to a true value. Percent error is equal to the difference between an experimental and theoreti...
It can't be because it gets oxidised during the reaction. Logged Borek Mr. pH Administrator Deity Member Posts: 27950 Mole Snacks: +1821/-412 Gender: I am known to be occasionally wrong. Re: How to calculate the number of moles of Fe2+ produced in the reaction? « Reply #2 on:...
These items cannot be picked up in a standard hardness test. To arrive at compensated hardness, multiply the figure on the right by the hardness in grains per gallon by your test that fit into the hardness category on the left.Calculate Compensated Water Hardness Water Test Hardness Result (...
Question: A 75.0 mL sample of 1.48×10−2M Na2SO4(aq) is added to 75.0 mL of 1.24×10−2M Ca(NO3)2(aq) What percentage of the Ca2+remains unprecipitated? (Ksp = 9.1x10-6) I tried solving for [Ca2+] using Ksp and then divided moles of Ca2+ in the solution by # of origi...
[18,118,123,212,213,214,215,216,217,218,219,220,221,222]). Tracked over time, it reveals the evolution of this patient-specific sensitivity to care and patient condition. This trajectory of sensitivity values, captured as a virtual patient, can consequently be employed to calculate how new...