Explain potassium hydroxide to a phenolphthalein endpoint

Assignment Help Chemistry
Reference no: EM13494399

If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.200 M potassium hydroxide to a phenolphthalein endpoint, what is the molarity of the acid? H2SO4(aq) + 2 KOH(aq) ? K2SO4(aq) + 2 H2O(l) Answer 0.300 M 0.200 M 0.150 M 0.400 M 0.100 M

Reference no: EM13494399

Questions Cloud

Explain the energy we get in nuclear reactions : The energy we get in nuclear reactions comes from ____ A) the sun. B) water. C) energy we put into the reactor. D) work we do on the reactor. E) the mass of the fuel.
Evaluate the rate constant k for the reaction : Calculate the rate constant (k) for the reaction (don't forget the unit). If you can somehow help me and maybe upload the worked out problem I would greatly appreciate it and thank you in advance
What are the advantages of purchasing a franchise : what are the benefits of franchising a business idea, rather than the start-up entrepreneur expanding the concept through multiple sites ?
Find which bulb has a greater resistance : A 100-watt light bulb is brighter than a 25-watt light bulb because it uses more power. Which bulb has a greater resistance, the 100-watt or the 25-watt light bulb
Explain potassium hydroxide to a phenolphthalein endpoint : If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.200 M potassium hydroxide to a phenolphthalein endpoint, what is the molarity of the acid? H2SO4(aq) + 2 KOH(aq) ? K2SO4(aq) + 2 H2O(l) Answer 0.300 M 0.200 M 0.150 M 0.400 M 0.100..
Explain your analysis and understanding of social accounting : Details: You are meeting with accounting department personnel to make sure they understand the importance of corporate social responsibility and how it affects the company and their specific jobs.
Explain what is the mass of ethylene glycol dissolved : Permanent antifreeze contains ethylene glycol dissolved in water. What is the mass of ethylene glycol dissolved in 5.00 kg of a 40.0% solution
Determine the electric potential at the center of the shell : A charge of q = +10-7 C is uniformly distributed on a spherical shell of radius 12 cm. What is the electric potential at the center of the shell
How much energy was released in the explosion : A 12.0- shell is launched at an angle of 55.0 above the horizontal with an initial speed of 150. how much energy was released in the explosion

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the most basic premise for bonding in a molecule

We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?

  Easily substituted until the trihalo species is obtained

each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain

  Explain imidazole need to adjust the solution

How much of either 5.0 M HCl or 5.0 M NaOH must you add (and which one)? Assume the pka for imidazole is 7.0.

  Define how many grams each of sodium formate

If you wanted to make a 3 liter solution of 500 mM formic acid buffer at pH 3.9 how many grams each of sodium formate (MW=68g/mol) and formic acid (MW=46g/mol) would you add

  Write the equation for the heat of formation of c2h6g

c2h2g2h2g-gt c2h6gc2h2- delta h 226.7c2h6- delta h -84.7a.write the equation for the heat of formation of c2h6gb. use

  How nitrogen reacts with hydrogen

Nitrogen reacts with hydrogen according to the following equation.

  Evaluate the weight percent nh3 in the aqueous waste

The sample is diluted with 73.505 g of water. A 12.973 g aliquot of this solution is then titrated with 0.1038 M HCl. It required 29.32 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.

  Evaluate the value of ksp for pbf2

One liter of water will dissolve 2.15* 10^-3 mol of PbF2 at 25 degrees c. Calculate the value of ksp for PbF2.

  Explain how to name and define acids

How to Name and Define Acids, How can you know that HNO3 is nitric acid and HNO2 is nitrous acid? How do you know the difference in endings?

  Explain the graduated cyinder far from the magnet

296K(temperature), if you placed 2.58g of CrCl3*6H2O in a graduated cylinder and attempted the same experiment, what ?m would ypu observe?

  How many ml of a 0.8 m naoh(aq) solution are required

How many mL of a 0.8 M NaOH(aq) solution are required to make 500 mL of a solution with pH=12.50?

  State the chemical reaction for kh2po4/k2hpo4

Write the chemical reaction for: KH2PO4/K2HPO4 buffer solution + NaOH (aq) and Write the chemical reaction for: KH2PO4/K2HPO4 buffer solution + HCl (aq)

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