10-7 moles of the strong acid HNO3 are added to 1 Lt of distilled water at 25 oC. What is the pH of the solution? Assume that activity coefficients are unity.
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10-7 moles of the strong acid HNO3 are added to 1 Lt of distilled water at...
10-2 moles of HCL care added to 1 liter of distilled water at 25c . find [H+], [OH-] and [Cl-] for this solution, what is the pH of the solution? demonstrate that [HCL] is negligible. assume that activity coefficients are unity.
Distilled water is added to a weak acid solution. Explain how the addition of the water affects i) the number of moles of acid in the solution, ii) the concentration of the weak acid and iii) the pH of the solution.
1. 1x10^-9 moles of strong acid HCl are added to of water (total volume is 1L). the pH of the resulting solution is... a)9 b)8 c)7 d)5 e)2 I got 9 but got the answer incorrect, so i would like to know how to solve this properly and what is the final answer. 2. the pKa of acetic acid is 4.76. if the pH=4.76 and the concentration of sodium acetate is 0.1M, what is the concentration of acetic acid? a)0.05...
0.02 M HCN are added to 1 L of distilled water at 25 oC. What is pH and pOH of the solution? pKa of HCN is 9.31. Draw a pH - pC diagram to find pH and pOH.
Explain the relationship between the average moles of strong acid that must be added to change the pH of 25 mL of each buffer by one pH unit and the [Conj. base]/[Weak acid] ratio for the buffer. (What happens to the average number of moles of strong acid that must be added when the [Conj. base]/[Weak acid] ratio decreases? Why does the average number of moles of strong acid change as it does?)
Nitric acid, HNO3, is a strong acid What is the pH AND [ OH-] of a 0.050 M solution of HNO3 at 25 degrees
find the pH of the 25C solution resulting from the addition of (1) 10-2 moles of H2A to 1 liter of distilled water and (2) 10-2 moles of Na2A to 1 liter of distilled water. here pKa,1=4 and pKa,2=8.
15) A solution is created by dissolving 0.907 moles of HCI (a strong acid) into water, making 13.9 Liters of solution. Calculate the [H*) and the pH of this solution: (5) 16) What is the [H"] of an acid sample that has a pH of 0.230? نما 17) What is the pH of an aqueous 0.305 M KOH solution (a strong base)? 18) What is the (OH) of a bleach sample that registers 11.41 on a pH meter? (4)
5. Hydrofluoric acid is added to distilled water. Write the acid-base reaction that occurs. After writing the reaction, identify (label) all acids and bases and connect the conjugates with a line. HER & How Hotcams & Fans Com tate X Will this solution be (acidic, basic, neutral (circle correct choice) 6. The acid-dissociation constant for nitrous acid is 4.5x10-4. a) Calculate the equilibrium pH if the initial concentration of nitrous acid is 0.135 M. ? A HA + H₂O 0.135...
Ten grams of an unknown acid was added to 50.0 mL of distilled water. The molarity of the resulting solution was found to be 8.0 M. What is the moral mass of the unknown acid?