calculate the concentration of the CA(OH)2 and the pH of the solution of 0.001mol of Ca(OH)2 in 100ml of water at 25°C.相关知识点: 试题来源: 解析 Without any given statistics?According to my appendice attached in my Inorganic Chemistry, the Ksp value of Ca(OH)2 should be 5.26,...
then calculate x. You can use the spreadsheet program to do this calculation for you and make it quicker. You have now calculated the concentration of the chemical of interest in three of your diluted unknowns. The original solution was diluted to prepare these unknowns, however...
Take the concentration of H+ (in moles per liter) and plug it into the following pH formula: pH=-log(H+). Determine the negative log of the H+ concentration using your calculator. You will arrive at the pH value of the unknown solution. If your solution is acidic, you will have a ...
A calibration is a pot of the concentration of known standards versus their signal. The signa could be measured in a variety of ways, such as absorption. The calibration curve can be used to calculate the concentration of a solution with the analyte ...
Let's assume, though, that your solution volume was 20 mL. The mass of analyte in this solution would be 39.2*20 = 784 mg. So the mass fraction (we wouldn't usually say "concentration") of analyte in your original sample was 784/1.487 = 527 mg/g.This is what we would get ...
Learning how to calculate molarity isn't difficult; the key is to remember the units of molarity (M): moles per liter. Find the molarity by calculating the number of moles of the solute dissolved in liters of a solution. Molarity is a unit of concentration, measuring the number of moles...
Note that I assumed that the solution wasn't super dilute. If that were the case, I couldn't plug directly into the Henderson-Hasselbalch equation because the acid-base equilibrium would need to shift, but the change in the concentration of hydronium would be dominated by auto-ioniza...
The process of determining the concentration of a solution whose volume is known by allowing it to react with a solution of known concentration and volume is called titration. Since most titrations are neutralization reactions, acid-base titration is the most common type. Other types of titration...
Calculating the pH of the solution involves taking the negative logarithm of the molar concentration of hydronium ions. The pH is a logarithmic scale. A change in the pH of one unit represents a ten-fold change in the concentration of hydrogen ions. We find that an increase in the pH...
Titration is a process for finding the concentration of a chemical solution. Titration makes use of the physical evidence of a chemical reaction to determine the amount of a known chemical that is required to completely react with the unknown chemical. This can then be used to calculate how muc...