Need help with 3 and 4 on calculations. some info is on top of the page Data Sheet for Lab #10 Name: Partner: Data/Observations: Volume of (NH), SO, used: Suomi initial pH of (NH4)2SO4 6.79 Equivalence vol. of NaOH: 20.00 pH at half-equivalence: 10,63 Balanced Chemical Equation: 1. Write the balanced equation for the reaction of ammonium sulfate and sodium...
What is the pH of the following solutions? 1)a solution that is 5.4?10−2 M in HClO4 and 3.0?10−2 M in HCl 2)a solution that is 1.80% HCl by mass (Assume a density of 1.01g/mL for the solution.) Please help! I am so confused!
A 98.0 mL sample of 0.0200 M HClO4 is titrated with 0.0400 M RbOH solution. Calculate the pH after the following volumes of base have been added. (a) 24.5 mL pH = (b) 47.0 mL pH = (c) 49.0 mL pH = (d) 51.0 mL pH = (e) 77.4 mL pH =
Writing polyprotic acid and base reactions: 1. Write all the dissociations for the three polyprotic acids: H_2CO_3, H_3AsO_4, H_3PO_4. Match the appropriate Ka1, Ka2, Ka3 values to the dissociation reaction. 2. Identify all the species in each of the reactions as either an acid, a base, or amphoteric. Imagine putting NaH_2AsO_4 in solution. This is a salt. Describe, using chemical...
13.) What is the pH of a solution if 25.0 mL of 0.250 M HClO4 is titrated with 25.0 mL of 0.475 M Ba(OH)2? a. 2.30 b. 10.32 c. 2.73 d. 13.54 e. 7.00
Dont need (a) or (b) thank you You have a 0.025 L solution of piperazine (perhydro-1,4-diazine), a weak dibasic base. The K, values for its conjugate acid are 4.65*10 and 1.86*10-10 (in a solution with an ionic strength of zero). You would like to know the concentration of your solution and decide to titrate with HCl. You make a 0.10...
Please Answer ALL. Thanks. a Write a balanced chemical equation for the acid dissociation reaction of hypochlorous acid (HOCI) in water. (1 mark) b Write the Ka expression for Hoci based on the above equation. (1 mark) c The pH of a solution of hypochlorous acid (HOC) in water was found to be 3.9. What is the concentration of...
An aqueous solution is 54.2 % HClO4 (solute) by mass and has a density of 1.788 g/mL. Determine the mole fraction of solvent.
a barium hydroxide solution is prepared by dissolving 1.74 g of Ba(OH)2 in water to make 58.3 mL of solution. what is the concentration of the solution in units of molarity? the barium hydroxide solution is used to titrate a perchloric acid solution of unknown concentration. write a balanced chemical equation to represent the reaction between barium hydroxide and perchloric...
100 Experiment 12 Determination of Solution pH 2. Provide equations for each of the following. (Use compounds from question 1. if you want a) Dissociation of a strong base in water b) Dissociation of a strong acid in water c) lonization of a weak base in water d) lonization of a weak acid in water e) Autoionization of water _...