Define what is the molarity of koh

Assignment Help Chemistry
Reference no: EM13194029

Type your question here A solution of a primary standard KHC8H4O4 was prepared by dissolving 0.4877g potassium hydrogen pthalate in 50 ml H2O. Titration with KOH required 23.84 ml to reach a phenopthalein end point . What is the molarity of KOH.

Reference no: EM13194029

Questions Cloud

How long did it take the ball to hit the ground : The height of a ball (in feet) t seconds after it is thrown straight upward is determined by h(t)=16t^2+48t+7. How long did it take the ball to hit the ground?
State diatomic oxygen to form nitric oxide : diatomic oxygen to form nitric oxide and water vapor: 4NH3 + 5O2 > 4NO + 6H2O When 20.0 g NH3 and 50.0 g O2 are allowed to react, which is the limiting reagent? How much water is produced and how much is left of the excess reagent
What are the dimensions : the length of a new rectangular playing field is 7 yards longer than quadruple the width. If the perimeter of the rectangular playing field is 514 yards, what are the dimensions?
State measuring device indicates that the blood pressure : A pressure-measuring device indicates that the blood pressure of a normal person oscillates between 120mm Hg (at the peak of the heartbeat) and 80mm Hg (between heartbeats).
Define what is the molarity of koh : here A solution of a primary standard KHC8H4O4 was prepared by dissolving 0.4877g potassium hydrogen pthalate in 50 ml H2O. Titration with KOH required 23.84 ml to reach a phenopthalein end point . What is the molarity of KOH
Find out the composition by mass of the pewter : Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the lead required 26.68 mL of the EDTA solution. Determine the com..
Explain changing the temperature and pressure : The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,
Define what were the molarities of cd2 : Titration of the newly freed EDTA required 24.6 mL of 0.0220 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?
Explain changing the temperature and pressure : The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,

Reviews

Write a Review

Chemistry Questions & Answers

  What is the solubility of the gas

If the solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 202 kPa?

  State photomultiplier tube sensitive to the largest portion

A photomultiplier tube detects photons by amplifying the current generated by the photoelectric effect. Which metal, lithium, calcium, aluminum or gold would you choose if you were trying to make a photomultiplier tube sensitive to the largest por..

  Explain it rises to a point where conditions

A weather balloon containing 605 L of He is released near the equator at 1.01 atm and 305 K. It rises to a point where conditions are 0.489 atm

  Change in temperature in the production of silver chloride

Chemistry: Change in Temperature in the Production of Silver Chloride, When solutions containing silver ions and chloride ions are mixed, silver chloride precipitates:

  What is the molar concentration of fe2+

If it takes 50.0 mL of 0.0250 M K2Cr2O7 to titrate 30.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+?

  Complete equation to show how hydrofluoric acid

Complete this equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. HF+H2O=?

  Calculate the molar heat of combustion of methane

10 g of methane (CH4) is combusted in a calorimeter that has an empty heat capacity of 18 J/°C. The calorimeter contained 150 g of water.

  Calculate the percent ionization of the weak acid

A 0.0100 molal aqueous solution of a weak acid freezes at -0.0205 oC. Calculate the percent ionization of the weak acid, HA.

  Compute the maximum non-expansion work

Calculate the maximum non-expansion work that can be done on the surroundings from the combustion per kilogram of H2(g) at constant pressure and 298.15K.

  State a net ionic equation for any reaction that would occur

describe the observations you would make and write a net ionic equation for any reaction that would occur.

  State what is the value of delta g for the reaction

the Cu^+ and I^- ions in equilibrium at 298 K are both equal to 1.03 x 10^-6 M, what is the value of delta G for the reaction?

  At what celsius temperature will the volume increase

A gas at 89.0°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L

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