WebMay 4, 2015 · 3. Use the following experimental data to determine the enthalpy of combustion of propanol (C3H₂OH) in kJ/mol Mass of water = 200.00 g Initial water temperature = 18.2°C Final water temperature = 38.6°C Initial mass of alcohol lamp = 185.51 g Final mass of alcohol lamp = 184.56 g subtract for massof stuff Know kJofq + mass of … WebApr 27, 2024 · The pH value 7 corresponds to neutral substances. Acidic substances are those with a pH lower than 7, while basic substances have a pH higher than 7. In this case, being pH= 2.11, you can replace this value in the definition of pH: 2.11= -log [H⁺] Solving: [H⁺]= 10⁻² ¹¹ M [H⁺]= 7.76×10⁻³ M Finally, the concentration [H⁺] is 7.76×10⁻³ M
Titration of a Strong Acid With A Strong Base - Chemistry LibreTexts
WebCsOH is classified as a: answer choices strong acid weak acid strong base Salt Question 10 30 seconds Q. A substance that is 3 on the pH scale would be a (n): answer choices acid base neutral solute Question 11 30 seconds Q. Which one of the following is an example of a base? answer choices orange juice dish soap vinegar lemons Question 12 WebQuestion 1 30 seconds Q. A solution has a pOH of 12. Which best describes the solution? answer choices It has a pH of 2 and is a base. It has a pH of 12 and is a base. It has a pH of 2 and is an acid. It has a pH of 12 and is an acid. Question 2 30 seconds Q. A student describes a liquid as feeling slippery. egypt city building game
What is the pH of a 0.100 M HI solution? Is that neutral, acidic, or ...
WebJan 30, 2024 · To calculate the pH at 50% neutralization, use the Henderson-Hasselbalch approximation. pH=pKa+log[mmol Base/mmol Acid] pH=pKa+ log[0.65mmol/0.65mmol] … WebJun 3, 2016 · pH = 11.83 Explanation: Potassium hydroxide fully ionizes when dissolved in water according to the following equation: KOH → K+ + OH − Now, let's find the relationship between KOH and OH − 1 : 1 ratio ⇒ [KOH] = [OH −] = 6.7 × 10−3M In any aqueous solution, [H 3O+] and [OH −] must satisfy the following condition: [H 3O+][OH −] = Kw folding myrack