
Hello, the volumes of the reactants are not enough to determine the porcentage of H2O2 in the sample, the concentration of MnO4 is at least needed, also the grams of sample (total sample) is needed. I think that you have review the data you have available and explain better the steps of the experimentation, because, for example, if I assume the density of H2O2 as 1 g/mL and the reaction took 4 mL therefore there are 4 grams of H2O2, so, how to calculate the porcentage if you don't tell me where the sample came from?.
Regards!!
In trial one, 61mL of MnO4 were required to titrate 4mL of H2O2. This was in...
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5Fe3+ (aq) + Mn2(aq) + 4H2O(1) In part A of the experiment, suppose that 1.067 g of Fe(NH4)2(SO4)2.6H2O(s) are placed in a 250 ml Erlenmeyer flask to which 20 mL of water and 8 mL of 3 M H2SO4(aq) are added. The solution was titrated to the end point by adding 26.89 mL of KMnO4(aq) from the...
can you please answer this one, the first
one I posted the answer was wrong.
Potassium permanganate in acidic solution is used to titrate a solution of hydrogen peroxide, with which it reacts according to 2MnO4 (aq) + 5H2O2(aq)+6H30+(aq)—>2Mn2+(aq) + 502(g)+14H2O(1) A potassium permanganate solution is prepared by dissolving 22.00 g of KMnO4 in water and diluting to a total volume of 1.000 L. A total of 20.27 mL of this solution is required to reach the endpoint in a...
please help me answer 1-3. My avergae number of mL of 0.100M
NaOH required to titrate the remaining anount of HCl in my sample
is 1.08mL.
CAMERY Review Layout References Mailings Wednesday, March 25, 2020 View Help ID Number Experiment 17: Analysis of an Antacid Normally in the lab we would do the titration as described. Instead I will be providing you with the results as if you had gotten them from your titration. The procedure calls for you to...
EXPERIMENT 7 OXIDATION-REDUCTION TITRATIONS Name HOMEWORK EXERCISES Use the net ionic equations in problems I and 2 for problems 3-5 1. a. Write the balanced equations for the half reactions (ionic) and the overall net ionic equation for the titration of Mohr's salt with KMnO4. lonic MnO,: lonic Fe Net ionic: b. What is the standardized molarity of a KMnO4 solution if 36.31 mL are required to titrate 2.5010 g of Mohr's salt? 2. a. Write the balanced equations for...
I am looking for help with just trial one. I am not sure what
equations to use or how to go about even answering these questions.
I figure if I can get help with trial 1 I should be able to do
trial 2 on my own.
( This week has been really bad, I lost my grandfather, so if you
could "dumb" down the steps as much as possible I would appreciate
it, my brain is just not working...
In a crossover trial comparing a new drug to a standard, π denotes the probability that the new one is judged better. It is desired to estimate π and test H0 : π = 0.5 against H1 : π =/= 0.5. In 20 independent observations, the new drug is better each time. (a) Find and PLOT(I can't figure out how to plot it) the likelihood function, but I know it's. Give the ML estimate of π. (b) Conduct a Wald...
In a crossover trial comparing a new drug to a standard, π denotes the probability that the new one is judged better. It is desired to estimate π and test H0 : π = 0.5 against H1 : π =/= 0.5. In 20 independent observations, the new drug is better each time. (a) Find and PLOT(I can't figure out how to plot it) the likelihood function. Give the ML estimate of π. (b) Conduct a Wald test and construct a...
9. The four conditions required for using a Binomial distribution are. (a) A fixed number of trials (n). b) On each trial, there are two possible outcomes, one of which we call a "success" (c) On each trial, P(success) is the same (d) The outcomes of each trial are independent For each of the following decide if the random variable defined (X) is a Binomial variable or not. If it is not a Binomial variable, say which of the four...
Question 1: Show your calculations from Experiment 1: Ideal Gas Law - Finding Percent H2O2 with Yeast to determine the theoretical number of moles of O2 if the hydrogen peroxide were a 100% solution. NOTE: All work must be shown. Skipping steps or lack of clarity in steps will result in loss of points. All units must be properly labeled. QUESTION 2: Using the actual moles of O2 you determined from your experiment (n) and the theoretical moles of O2...
2. How many mL of 0.100M NaOH would you need to titrate if you measured out 0.120 g of oxalic acid? Must show calculation. (5 pts) lying an unknown acid Objective: Identify an unknown diprotic acid by determining its molecular weight. Introduction: A diprotic acid is an acid that yields two H ions per acid molecule. Therefore, two moles of NaOH are need to react with every one mole of diprotic acid. The net reaction of a diprotic acid, H:X,...