Click to see additional instructions The pH of the yellow solution was tested and reported to...
Click to see additional instructions The literature value for the pkc of bromocresol green is 4.70 at 25 degrees Celsius. A student experimentally determined the pkc value of bromocresol green as 4.67. What is the % relative error for this student's result? Report answer to correct # of sig figs (incorrect sig fig use means the answer is marked completely wrong)! Insert answer here without units:
You have an aqueous solution at 25°C with [H3O+] = (6.983x10^-9) M. What is the pH of this solution? {pH is a unitless quantity.} NOTE: To use scientific notation for the concentration, D2L requires that the pH be reported using scientific notation as well. I apologize for the awkward formatting. Note: Your answer is assumed to be reduced to the highest power possible.
You have an aqueous solution at 25°C with [H3O+] = (2.500x10^-7) M. What is the pH of this solution? {pH is a unitless quantity.} NOTE: To use scientific notation for the concentration, D2L requires that the pH be reported using scientific notation as well. I apologize for the awkward formatting.
1. Calculate the hydronium ion concentration and the hydroxide ion concentration in lime juice with a pH of 2.0. Report answers in scientific notation and 2 significant figures Hydronium ion concentration = Hydroxide ion concentration = 2. What are the hydronium and hydroxide ion concentrations in a solution whose pH is 6.52? Report answers in scientific notation and 2 significant figures Hydronium ion concentration = Hydroxide ion concentration = 3. Which is the stronger acid, NH4+ or HBrO? Hint: Compare...
Click to see additional instructions A student standardized an NaOH solution by weighing out 0.619g of KHP, which then required 32.00mL of NaOH to via titration to reach the pink endpoint. Calculate the molarity of the NaOH solution. Any necessary M.W. value(s) can be found in the lab manual. Report the calculated molarity to the appropriate number of significant figures
The pH of an aqueous solution at 25°C is (4.686x10^0). What is [H3O+]? NOTE: In order to use scientific notation for your answer, I have to report the pH in scientific notation. It is a bit awkward looking, I apologize for that. Note: Your answer is assumed to be reduced to the highest power possible.
The pH of an aqueous solution at 25°C is (5.207x10^0). What is [H3O+]? NOTE: In order to use scientific notation for your answer, I have to report the pH in scientific notation. It is a bit awkward looking, I apologize for that. Note: Your answer is assumed to be reduced to the highest power possible.
Click to see additional instructions The equilibrium constant (Kc) of methyl orange indicator is 1.6e-4. Calculate the pkc of methyl orange. Report answer to two total significant figures. The pkc is
Click to see additional instructions Calculate the gravity force W of a person whose mass is 200 lbs. Answer: W-
For a weak base (B), a 0.0100 M and a 0.100 M solution was made. Students obtained the following pH value for the solution. Fill in the table. Report all answers (except pH or pOH values) in scientific notation. 0.0100 M B 0.100 M B pOH 4.32 3.48 [OH-] [BH+] [B] (at equilibrium) Kb For the same solution fill out the following information: 0.0100 M B 0.100 M B pH (Do not...