Compute and state reasoning that led pka for hf

Assignment Help Chemistry
Reference no: EM13523276

Which of the following when added to a 1.0 L solution containing 0.10 M NaF and 0.20 M HF will result in a solution where pH = pKa for HF? Ka for HF = 7.2 x 104. Show ALL calculations and state your reasoning that led to your answer.

a) 0.050 mol NaOH

b) 0.10 mol NaOH

c) 0.050 mol HCl

d) 0.10 mol HCl

e) 0.20 mol HCl

Reference no: EM13523276

Questions Cloud

A blackbody will emit less energy at higher frequencies : A blackbody will emit less energy at higher frequencies.
What is the electric flux through the base : A tetrahedron has an equilateral triangle base with 18-cm-long edges and three equilateral triangle sides. The base is parallel to the ground, What is the electric flux through the base
Johnson controls fetal protection policy : Johnson Controls, Inc. made batteries whose primary ingredient, lead, can harm a fetus. The company therefore required female employees to sign a statement which read: "that women exposed to lead have a higher rate of abortion . . . [ is] not as c..
Determine how many miles fred needs to drive to break even : Determine how many miles Fred needs to drive to break even. (Round intermediate calculations to 2 decimal places.)
Compute and state reasoning that led pka for hf : Which of the following when added to a 1.0 L solution containing 0.10 M NaF and 0.20 M HF will result in a solution where pH = pKa for HF. Ka for HF = 7.2 x 104
What is its velocity just before it hits the ground : At that point its engines fail, and the rocket goes into free fall, with an acceleration of ?9.80 m/s2. What is its velocity just before it hits the ground
An object through a rectangular : An object through a rectangular
Complete statement of cash inflows and cash outflows : Prepare and complete statement of cash inflows and cash outflows from operating activities according to the indirect method.
What is a moral precept : What is a moral precept? Can you give us an example of a moral precept that means a lot to you, in your own life? It can be a moral precept that's well-formulated and well-known (sometimes there are little expressions, or little "golden rules" tha..

Reviews

Write a Review

Chemistry Questions & Answers

  State whats is the procedure for preparing

Experimental procedure, part A. whats is the procedure for preparing 250 mL of 0.0210 M Na2S2O3 for this experiment from a 100 mL volume of standard 0.106 M Na2S2O3?

  State the concentrations of reagents or the colors resulting

Don't worry about the concentrations of reagents or the colors resulting precipitates (if any). You don't have to precipitate all ions, just separate them

  Fnd out amount of nitrogen and oxygen in grams in cup 236

henrys law constants for aqueous solutions at 25degc are 8.20 times 10-7 molalmmhg for n2 and 1.62 times 10-6 molalmmhg

  Explain what products are generated by the yeast enzyme

What products are generated by the yeast enzyme fermentation of fruit sugar. Write out this chemical reaction.

  Compute the vapor pressure of water above a solution

Calculate the vapor pressure of water above a solution prepared by adding 23.5 g of lactose (C12H22O11)to 200.0g of water at 338K . (Vapor-pressure of water at 338K 187.5 torr.)

  Explain raising the temperature of 1 liter of water

At 1 atm, how many moles of CO_2 are released by raising the temperature of 1 liter of water from 20 celcius to 25 celcius

  Explain magnesium metal is used as a sacrificial anode

Magnesium metal is used as a sacrificial anode to reduce the corrosion of underground storage tanks (made of iron, or more accurately, steel which is an iron/carbon alloy). As a result the sacrificial metal corrodes instead of the iron. Explain th..

  Define the solubility of m(oh)2 in a solution buffered at ph

Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. Estimate the solubility of M(OH)2 in a solution buffered at pH = 7.0, 10.0, 14.0

  Find the enthalpy of formation for c6h12o6

Given that the enthalpy of formation is -277.7 kJ/mol for C2H5OH(l) and -393.5 kJ/mol for CO2(g), find the enthalpy of formation for C6H12O6.

  Explain what is the total amount of time in seconds

Oxygen-15 has a half-life of 124 seconds. You begin with a 429 mg sample of oxygen-15. You wait 6.20 minutes. What is the total amount of time in seconds

  Explain hcl to react with all of calcium carbonate

How many grams of silica were in a 6.00 grams sample, if it took 34.1 mL of 0.95 M HCl to react with all of calcium carbonate

  Why is the pka of formaldehyde less than acetaldehyde

Why is the pka of formaldehyde less than acetaldehyde, a regular aldehyde or a ketone? Why is it a stronger acid compare to these other structures?

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