If the pH of an unknown sample is 8.74, what is the OH- concentration in the sample?   Write the answer in scientific notation with 2 sig.dig.  For example if your answer is 3.49x10^3, write down 3.49e+3. The +/- signs are important!  Also, make sure there are no spaces between values, otherwise the answer will be considered incorrect!

Q: Calculate the ph of 1.55 M CH3NH2. The Kb for CH3NH2= 4.4 x 10^-4

A:

Q: For each of the following strong base solutions, determine [OH−],[H3O+][OH−],[H3O+], pHpH, and…

A: The objective of the question is to determine the concentration of hydroxide ions [OH-], hydronium…

Q: At 25°C, the pH of human blood is around 7.40. Calculate [OH-] in human blood. Do not enter units as…

A:

Q: What is the hydroxide-ion molarity in an aqueous solution at 25 °C that has a pH value of pH =6.10?…

A:

Q: At 100°C and 1000 atm, Kw = 1.10×10-12. Answer the following questions for these conditions.…

A: Given data :  Kw = 1.10×10-12

Q: Rank the following from most to least acidic

A: On the basis of pH,  Less the pH more the acidity of compound and vice versa

Q: Determine the pH of the solution. (2 decimals) 0.21 M CH3NH3 (Kb(CH3NH₂)=4.4×10-4) 1

A: The concentration of  solution = 0.21 MThe dissociation constant of the weak base,, Kb  = Calculate…

Q: For 8.73 x 10-3 M LiOH, determine [OH-] and [H3O+]. Express your answers in moles per liter to three…

A: Lithium hydroxide is a strong electrolyte and it dossociates completely as follows:Hence the…

Q: Using the constant below, calculate the molar concentration (M) of acid H3O* in solution if the…

A: Kw is the water dissociation constant, and is given by :Kw = [ H3 O+] [OH-] Kw = 1 × 10-14[OH-] =…

Q: When [H30*] = 4.0 x 10-° M in an aqueous solution at 40°C, %3D which of the following statements is…

A: Given : [H3O+]=4.0 x 10-9 M pH=-log [H3O+] pH=-log (4.0 x 10-9) pH=8.392

Q: Use the given information in each row to complete the table. Please use scientific notation for your…

A: Given : pH = 1.87 and pOH = 12.13

Q: The pH of a fruit juice is 2.4. Find the hydronium ion concentration, [H30*], of the juice. Use the…

A:

Q: What volume of a concentrated HCl solution, which is 36.0% HCI by mass and has a density of 1.179…

A: To determine the required volume of 36.0 % HCl solution to prepare the HCl solution of pH of 1.60,…

Q: Consider the following data on some weak acids and weak bases: K name formula acetic acid HCH,CO₂…

A: The question is based on the concept of salt hydrolysis .we need to arrange the given salts in…

Q: Ascorbic acid (vitamin C) is a diprotic acid, H2CgHg06. Calculate [H*], pH, and [C&H,0,²] in a 0.12…

A:

Q: Determine the [OH"] in a solution with a pH of 5.293. Your answer should contain 3 significant…

A: pH is defined as negative logarithm of hydrogen ion concentration pH = -log[H+]          ......(1)…

Q: Determine the OH of a 0.23 M ammonia solution. K, = 1.76x10-5 Express your answer using two…

A:

Q: What is the pH for a solution at 25 °C that has a OH" concentration of 7.52 x10-2 M? (the answer…

A:

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

A:

Q: Determine the [H*],[OH-], and pOH of a solution with a pH of 11.63 at 25 °C. [H*] = M [OH-] = M %3D…

A: Since at 25 oC [H+] * [OH-] = 10-14 pH = -log[H+] pOH = -log[OH-] pH + pOH = 14

Q: Determine the [OH−], pH, and pOH of a solution with a [H+] 7.7×10^−11 M at 25 °C [OH−]=     pH=…

A: Since,           At 25°C[H+] [OH-] =10-14PH+POH=14PH = -log [H+]POH=-log  [OH-]

Q: A typical vitamin C tablet (containing pure ascorbic acid, H₂C6H606) weighs 500 mg. One vitamin C…

A: The question is based on the concept of the pH of the solution.It is defined as a negative logarithm…

Q: Determine

A:

Q: A patient with respiratory alkalosis has a blood plasma pH of 7.50. What is the [H3O+] of the blood…

A: Given: The pH of the solution = 7.50 We have to calculate the [H3O+] for the solution.

Q: Acids & Bases: Understanding Connections Between Descriptions of Weak Acid Dissociation In an…

A: pH;Negative logarithm of base 10 Hydrogen ion concentration is known as pH.The concentration of…

Q: I'm a little confused on how to do the calculations. How do I do the calculations for this?…

A:

Q: Determine the [H3O) in a solution with a pH of 4.193. Your answer should contain 3 significant…

A: The given value of pH of a solution is 4.193. The pH of a solution is calculated by the formula,…

Q: Determine the [H+], pH, and pOH of a solution with [OH−]=1.6×10^−12 M at 25 °C. Round your [H+]…

A: Answer :

Q: A typical vitamin C tablet (containing pure ascorbic acid, H₂C6H606) weighs 500 mg. One vitamin C…

A: The objective of this question is to calculate the pH of a solution made by dissolving a vitamin C…

Q: Construct the expression for Ka for the weak acid, NH4+. Based on the definition of Ka, drag the…

A: we have to determine the expression for Ka of the given reaction

Q: Be sure to answer all parts. Please report your answer to the correct number of significant figures.…

A: Formula: pH + pOH = 14 pOH = - log[OH] For a weak base solution: [OH] = (Kb × C)1/2 Where, C = molar…

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

A: The pH and the hydronium ion concentration are related to each other as; pH = -log H3O+…

Q: The pH of a 0.60M solution of acrylic acid (HC3H3CO₂) is measured to be 2.24. Calculate the acid…

A: pH = 2.24

Q: What is the pOH of (3.03x10^-1) M LİOH? Enter your answer in scientific notation with 3 sig figs. Do…

A: pOH is negative logarithm of concentration of OH- ions. LiOH is a strong base. So, it dissociates…