Calculate the molar concentration of oh- ions

Assignment Help Chemistry
Reference no: EM13123465

Calculate the molar concentration of OH- ions in a 7.5×10^-2 M solution of ethylamine C2H5NH2(Kb = 6.4x10^-4).

Reference no: EM13123465

Questions Cloud

Equations of straight lines : A line passes through the point (6, -6) and has a slope of -3. Write an equation for this line in (x, y) coordinates. Write equations for the vertical and the horizontal lines passing through the point (6, 1) in (x,y) coordinates.
Explain how much loss should hansen have recognized : Hansen Construction, Inc., has consistently used the percentage-of-completion method of recognizing income. During 1997 Hansen started work on a $3,000,000 fixed-price construction contract. Explain how much loss should Hansen have recognized in ..
Which value most accurately represents critical value of z : Our sample size is 17. Which value most accurately represents the critical value of Z that you would use to plug in for your interval?
Example of an assets historical cost : Most companies use historical cost to value property, plant, and equipment assets. What components make up historical cost? Provide an example of an asset's historical cost.
Calculate the molar concentration of oh- ions : Calculate the molar concentration of OH- ions in a 7.5×10^-2 M solution of ethylamine C2H5NH2(Kb = 6.4x10^-4).
Important information about graph parabola : Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x - h) 2 + k.
Find the point estimate for proportion of the population : This sample for the proportion of the population that would favor a recount. What is the Point Estimate for the proportion of the population that would favor a recount?
Illustrate what amount of realized gross profit : Assuming that Coaster uses the installment method of accounting for its installment sales, illustrate what amount of realized gross profit will Coastwe report in its income statement for the year ended December 31, 2012?
How might that business be operated : Generally, companies follow one of two broad strategies: offering a quality product at a low price, or offering a unique product or service priced higher than the competition. Assume you are opening a small food outlet across the street from your cam..

Reviews

Write a Review

Chemistry Questions & Answers

  What is the mass in grams of the lead

The water level in a graduated cylinder initially at 220 rises to 279 after a piece of lead is submerged. What is the mass in grams of the lead.

  Calculate the concentrations of all species

Calculate the concentrations of all species at equilibrium for each of the given original mixtures. 1.2 mol of NOCl and 1.2 mol of NO in a 1.0-L flask? K = 1.6*10^-5 mol/L

  What is the chemical formula for this compound

Fumaric acid, which occurs in many plants, contains 41.4% C, 3.47% H, and 55.1% O by mass. A 0.5 mol sample of this compound has a mass of 58.0 g.

  What is the new water level in the cylinder

A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.

  Calculate the ph

In the titration of 68.0 mL of 1.0 M methylamine, CH3NH2 (Kb = 4.4 10-4), with 0.49 M HCl, calculate the pH under the following conditions.

  Determine the enthalpy change for the dissolution of nh4no3

how many moles can be produced from 2.5 moles of Ag2CO3 and final temperature of the calorimeter contents is 23.83°C After dissolution of the salt.

  Find the molarity of a ca(oh)2 solution

Find the molarity of a Ca(OH)2 solution,given that 363 mL of it is neutralized in a titration by 187 mL of 0.0058 M HNO3.

  How much energy in kilojoules is required

How much energy in kilojoules is required to convert 100 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL.

  Questions on chemical equations

Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.

  What was the level of water in the graduated cylinder

The piece of iron with a mass 102.9g was submerged in a graduated cylinder filled with water. The initial level of water was 20.0 ml. The density of iron is 7.86 g/ml.

  How many grams of licl are needed

How many grams of LiCl are needed to make a saturate solution with 300 grams of H2O if the molality of the solution is 19.7.

  Compute the mass of an electron

Compute the mass of an electron if the difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 grams?

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