What is the ph and a chemist titrates

Assignment Help Chemistry
Reference no: EM13163608

A chemist titrates 20.00 mL of 0.2000 M HBrO ( Ka= 2.3 x 10^-9) with .1000 M NaOH. What is the pH? A) Before any base is added? B) When [HBrO] = [ BrO-] C) at the equivalence point ? D) when the amount (mol) of OH- added is twice the amount of HBrO present initially? e) Sketch the titration curve: label the pKa and the equivalence point.

Reference no: EM13163608

Questions Cloud

Find all irreducible polynomials : Find all irreducible polynomials
Consider the predator-prey models : Consider the predator-prey models developed early part of the 20 th  century in which the number of predators and preys may be predicted using the pair of ODEs
Create a crow''s foot erd using a specialization hierarchy : Given the following business scenario, create a Crow's Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms
Define a certain reaction has an activation energy : A certain reaction has an activation energy of 60.0 kj/mol and a frequency factor of A= 3.10×1012 M^-1s^-1 . What is the rate constant k , of this reaction at 30.0 Deg celsius?
What is the ph and a chemist titrates : A chemist titrates 20.00 mL of 0.2000 M HBrO ( Ka= 2.3 x 10^-9) with .1000 M NaOH. What is the pH? A) Before any base is added? B) When [HBrO] = [ BrO-] C) at the equivalence point
Explain what is the oxidation state of copper : The minerals chalcocite (Cu2S) and malachite (Cu2CO3(OH)2) are two primary sources of copper. What is the oxidation state of copper in each of these minerals?
Explain which metal hydroxide will precipate first : Which metal hydroxide will precipate first? Why? Ksp Ni(OH)2 = 6.0x10-16 Ksp Ce(OH)3 = 6.0x10-22 Ksp Cu(OH)2 = 4.8x10-20
Single machine with total capacity : Suppose that there is a single machine with total capacity of 23 units of time, and that one gets partial credit for partially processing a task, so that processing a task of value Vi for time t
Explain what are the composition of the liquid : A mixture of heptane/decane at 1.8 bar, 120?C contains 80% by mol heptane. At what pressure should it be flashed to obtain a stream that is 90% rich in heptane? What are the composition of the liquid and the amounts of the two phases?

Reviews

Write a Review

Chemistry Questions & Answers

  How many milligrams of hydrazoic acid must be in soln

how many milligrams of hydrazoic acid ( ka= 1.9x10^-5) must be in a 5.0-L solution that has a pH of 4.90?

  Depicts the experimental outcome for a titration analysis

Draw the experimental outcome for a titration analysis involving a titrant and titrand (the pH vs. volume titrant added response curve), wherein the titrand is the weak, monoprotic base aniline (0.05000 F, 0.10000 L), and the titrant is a strong m..

  How many grams of magnesium hydroxide should be recovered

If 24g Mg is used and the percentage yield is 95%, how many grams of magnesium hydroxide should be recovered?

  Define ethanol is a common laboratory solvent

Ethanol is a common laboratory solvent and has a density of 0.789 g/mL

  How much will the ph change

A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.60 mL of a 0.380 HCl solution to the beaker. How much will the pH c..

  Determine the gas pressure

A sample of gas (24.2 g) initially at 4.00 bar was compressed from 8.00 L to 2.00 L at constant temperature. After the compression, the gas pressure was ________ bar.

  What mass of ammonia is present in the container

A 250.0-mL sample of ammonia, NH3(g), exerts a pressure of 833 torr at 42.4 C. What mass of ammonia is in the container?

  Finding the concentration of fe2+ in equilibrium

At pH 6.00 and pE 2.10, what is the concentration of Fe2+ (mol/L) in equilibrium with Fe(OH)3?

  What mass of ccl2f2 must evaporate

What mass of CCl2F2 must evaporate in order to freeze 115 g of water initially at 21 C? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/g *K .)

  How many grams of o2 are needed

How many grams of O2 are needed to react with 18.5 grams of Mg?  2 Mg(s) + O2(g) → 2 MgO(s)

  Determine the enthalpy change

Determine the enthalpy change if The heat released when 24.9 grams of Potassium K reacts with excess H2O water is 124 kilo joules?

  Describe why the in phase vibration is located at a higher

Explain why the in phase vibration is located at a higher frequence than the out of phase stretch in the case of acetylene.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd