User Account

All Pages

Resulting from the addition

Assignment Help Chemistry
Reference no: EM131343901

Calculate final pH resulting from the addition of 5.0 mmol of strong acid to the buffer solution made from 0.150 L of 0.50 M NH4Cl and 0.100 L of 0.25 M NaOH. pKa(NH4+)=9.25.

Reference no: EM131343901

Questions Cloud

Precipitation of silver iodide : Why does the temperature of a solution increase if the reaction is exothermic? For example, in the precipitation of silver iodide, delta H is -110.7 kj. Why is this reaction exothermic and why does it cause the solution temperature to increase?
Standard heat of vaporization : Mercury (Hg) has a normal boiling point of 356.7 °C, and a standard heat of vaporization of 59.11 kJ/mol. Determine what mass of mercury will vaporize in a closed container at 22°Cif it has a volume of 1.7 L of space above the liquid.
Describe the health policy development process : Describe the health policy development process and the roles that various stakeholders have in that process associated with the article.Include a brief description of the key health policy issues, and evaluate the potential of these issues to tra..
Derive the backpropagation algorithm for this networ : In Figure P11.10 we have a network that is a slight modification to the standard two-layer feedforward network. It has a connection from the input directly to the second layer. Derive the backpropagation algorithm for this network.
Resulting from the addition : Calculate final pH resulting from the addition of 5.0 mmol of strong acid to the buffer solution made from 0.150 L of 0.50 M NH4Cl and 0.100 L of 0.25 M NaOH. pKa(NH4+)=9.25.
Vapor pressure of water : A 0.025 g sample of H2O is injected into a 1.00 L flask at 30.0 °C. What forms of water will be present at equilibrium? Vapor pressure of water at 30.0 °C is 31.8 mm Hg.
Partial pressure of the nitrogen : A sealed container holds 1.00 mole of helium and 2.00 moles of nitrogen at 30.0°C. When the total pressure of the mixture is 666 mm Hg, what is the partial pressure of the nitrogen in mm Hg? Provide an answer correct to 2 significant figures.
Calculate the molarity of solution : Dr. Pepper has 40.0g of sugar per 12 oz. of liquid. Calculate the molarity of this solution. Put that molarity into your regression line and calculate the density (all other things being equal) of this sugar solution. Show your work
Discuss your views of weiss and henrys claims : Discuss your views of Weiss and Henry's claims that "the purpose of evaluation is to bring about social betterment" in relationship to the target of evaluation you selected.

Reviews

Write a Review

Chemistry Questions & Answers

  Define how many coulombs are required to plate

How many coulombs are required to plate a layer of chromium metal 0.25 mm thick on an auto bumper with a total area of 0.32 m2 from a solution containing CrO42-? The density of chromium metal is 7.20 g/cm2.

  How much heat is required

How much heat is required to convert 25.0g of ethanol at 25 degrees C to the vapor phase at 78 degrees C?

  Explain the process used to choose the correct buffer

What would you use to prepare a buffer system with a pH of around 4.2. What would you use to make a buffer with a pH of around 9.2? Describe the process you used to choose the correct buffer for each pH.

  Define how you determined this from the excess reagents

Based on the results of your tests you have find out chemical formula for copper (II) sulfide. Define how you determined this from the excess reagents as well as the amount of precipitate formed in the lab.

  Explain how many moles of amine be in the sample

If 0.100 mole "recovered amine" had an [a]D=+20.35 degrees, how many moles of (-)- amine and how many moles of (+)-amine would there be in the sample

  Explain the initial specific activity

Carbon-14 has a half-life of 5730 years. A sample of carbon with a mass of 0.120 g has an activity of 40 decays/hr. The initial specific activity is assumed to have been 900 decays/hr/gram. How old is the sample

  Determining system equilibrium

Determining System Equilibrium, A one-litre cylinder at 458'C is found to contain 0.36 moles of HI (g), 0.15 moles of I 2(g), and 0.18 moles of H2(g). Is this system at equilibrium?

  Explain chromium onto the cathode if the current passed

How many hours will it take to plate 10.5 kg of chromium onto the cathode if the current passed through the cell is held constant at 30.5 A? Assume the chromium in the electrolytic solution is present as Cr3.

  How to calculate couloumbs and faradays

A mass of 1.20g of silver is plated from a silver nitrate solution in 1:25 hours. Calculate: a) couloumbs, b) faradays and c) amperes necessary for this process.

  Determine the mole fraction of sodium chloridenacl in the

determine the mole fraction of sodium chloridenacl in the solutionnbsp if this nbspsolution is formednbsp by mixing

  Explain the concentrations of barium and sulfate ions

A solution is prepared by mixing 75.0 mL of 0.020 M BaCl2 and 125 mL of 0.040 M K2SO4. What are the concentrations of barium and sulfate ions in this solution. Assume only SO4^-2 ions (no HSO4-) are present

  Define net ionic equation for the reaction of sodium oxalate

What is the balanced net ionic equation for the reaction of sodium oxalate with potassium permanganate

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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