If 3.0 ml of 0.02N H.SO, is required to titrate 200 ml of sample to the phenolphthalein endpoint, what is the phenolthalein alkalinity as mg/L of Caco,? If additional 20.0 ml of H,SO. is needed to reach the methyl orange point, what is the total alkalinity as mg/L of Caco.? A water sample has Ca and Mg concentration of 25.0 mg/L and 17.0 mg/L Calculate the hardness in mg CaCo/L (atomic weight: Ca = 40, Mg = 24).

If 3.0 ml of 0.02N H.SO, is required to titrate 200 ml of sample to the phenolphthalein endpoint, what is the phenolthalein alkalinity as mg/L of Caco,? If additional 20.0 ml of H,SO. is needed to reach the methyl orange point, what is the total alkalinity as mg/L of Caco.? A water sample has Ca and Mg concentration of 25.0 mg/L and 17.0 mg/L Calculate the hardness in mg CaCo/L (atomic weight: Ca = 40, Mg = 24).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Give the proper scientific description of 50x TAE Buffer given the information below. 242 g Tris base 57.1 mL glacial acetic acid 18.61 g disodium EDTA Up to 1L with dI water
Answer the number/group 3 only.
3. Use a titration between an acid and a base to answer the following: a. Mole to mole ratio of acid and base at the equivalence point: b. Describe how to find the equivalence point from a titration graph: and /150ml C. The equivalence point of a titration with 23 mL of 0.15M NaOH is used with 25mL of unknown HCI. What is the concentration of HCI? Jent ebxoibyvd muiboe to noits uov to aeogaib uDy bluone nonk
Please provide detailed solution and give the explanation of the concept....
Please don't provide handwritten solution ....
A TRICINE buffer is made to a pH of 8.15 at 25 °C then warmed to 37 °C. The pH of the solution changes because the pK, changes. TRICINE has a pK, = 8.14 and a ApK/AT= -0.018 "C¹, Calculate the pH of the buffer at 37 °C. pH =
You need to prepare 2.21 1. of a HF/NaF buffer that has a pH of 3.95 and an osmotic pressure of 1.11 atm at 298 K. The pK, for HF is 3.18. What masses of HF and NaFare needed to prepare the buffer? (Assume complete dissociation of NaF). mass of IIF: .25 Incorrect mass of NaF: 8.9 Incorrect
I dont know how to do This question.
3
Give typed explanation of both not a single word hand written otherwise leave it
enumerate the steps necessary to create a Phosphate Buffer NaH2PO4 - K2HPO4 with a final volume of 500 mL, a concentration of 0.10M, and a pH of 7.20 using 0.20 M NaH2PO4 and solid K2HPO4. Nota bene: Ka equals 6.3 x 10-8. (show computation as well) For solid K2HPO4, calculate for the mass (based from calculated moles of salt) rather than the volume since this is a solid substance.
21c.