2014年4月30日 · You can calculate pH if you know the concentration of the NaOH. You will need to know the molarity of the NaOH. Let's assume the solution is 0.1M. NaOH is a strong base, so this will produce 0.1mol/L of OH ions in solution. This will produce a pH of 13. You will need to take the negative log of 0.1 to find the pOH. This will work out to be 1.

2017年1月16日 · The pH is about 12.7. NaOH is a strong base, meaning it will dissociate basically completely in solution to form Na^+ and OH^- ions in solution. One mole of OH^- ions is created for every mole of NaOH that is dissolved. If it's a .05 M solution of NaOH, then it can also be interpreted to be a .05M solution of OH^-. pOH (The pH scale for bases) can be found by …

2017年5月30日 · This means that you express the #"pH"# of the solution in terms of its #"pOH"# by writing #"pH" = 14 - "pOH"# Now, the #"pOH"# of the solution is defined as the negative log base #10# of the concentration of hydroxide anions. #color(blue)(ul(color(black)("pOH" = - log(["OH"^(-)]))))# This means that the #"pH"# of the solution can be expressed as

2014年12月5日 · Assuming that you either start with, or can determine a molar concentration for NaOH, the easiest way to get to pH is by calculating pOH. NaOH is a strong base, which means it dissociates completely NaOH(aq) + H_2O(aq) <=> Na^+ (aq) + OH^(-) (aq) The concentrations of Na^+ and OH^- are equal to the intial concentration of NaOH, let's say X. You can now …

The pH scale was originated by Sorensen. He set 0 pH as the hydrogen ion concentration of a 1.0 molar solution of a strong monoprotic acid (like HCl). 14 on the pH scale uses its standard as the hydrogen ion concentration in a 1.0 molar concentration of a strong base (like NaOH). pH is actually a negative logarithmic scale.

2018年2月2日 · What is the pH of 0.001 M NaOH(aq) at 298 K? Chemistry Acids and Bases pH. 1 Answer Stefan V.

2016年12月16日 · What is the [OH-] concentration of NaOH solution with a pH of 9.4? (this was an example we did in class but i ddint take it down so idk how to go about doing this type of problem HELP PLEASE!!) Chemistry Acids and Bases pH

pH or potential of hydrogen is a scale of acidity from 0 to 14. It tells how acidic or alkaline a substance is. More acidic solutions have lower pH (less than 7). More alkaline solutions have higher pH (greater than 7). Substances which are not acidic or alkaline (neutral) usually have a pH of 7 (this is the answer to your question).

What is the pH and equivalence volume of NaOH at this point? 3. a. At the equivalence point, how many moles of 1 M NaOH were added to the flask. To get the number of moles, multiply the molarity by the number of LITERS of NaOH added. b. At the equivalence point, the number of moles of NaOH equals the number of moles of HCl in the flask.

Record this value in Data Table 3 next to pk. 37 Determine the Ky of the unknown weak acid using the following equation: Ka = 10-pk, 38 Record the K, of the unknown weak acid in Data Table 3. 39 Using the data collected in Data Table 2, create a graph of "Drops of NaOH added" vs. "Average pH," where "Drops of NaOH added" is on the x-axis and ...