1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hammer [34]
1 year ago
14

calculate the ratio of [sodium acetate] to [acetic acid] in a buffer solution that has a ph of 4.25. the ka for acetic acid at 2

5 °c is 1.7 × 10−5. please choose the correct answer from the following choices, and then select the submit answer button. answer choices
Chemistry
1 answer:
const2013 [10]1 year ago
5 0

The ratio of [sodium acetate] to [acetic acid] in a buffer solution is 0.30.

Henderson–Hasselbalch equation: pH = pKa + log(cs/ck)

pH = 4.25; pH of buffer solution

pKa = -log(1.7 × 10−5) = 4.77

4.25 = 4.77 + log(cs/ck)

log(cs/ck) =4.25 - 4.77 = -0.52

cs/ck = 10∧(-0.52) = 0.30; ratio of sodium acetate to acetic acid

A buffer can be defined as a substance that prevents the pH of a solution from changing by either releasing or absorbing H⁺ in a solution.

Buffer is a solution that can resist pH change upon the addition of an acidic or basic components and it is able to neutralize small amounts of added acid or base, pH of the solution is relatively stable.

More about sodium acetate: brainly.com/question/24671704

#SPJ4

You might be interested in
A solution is made by dissolving
nikklg [1K]

Answer:

THE MOLARITY IS 2.22 MOL/DM3

Explanation:

The solution formed was as a result of dissolving 37.5 g of Na2S in 217 g of water

Relative molecular mass of Na2S = ( 23* 2 + 32) = 78 g/mol

Molarity in g/dm3 is the amount of the substance dissolved in 1000 g or 1 L of the solvent. So we have;

37.5 g of Na2S = 217 g of water

( 37.5 * 1000 / 217 ) g = 1000 g of water

So, 172.81 g/dm3 of the solution

So therefore, molarity in mol/dm3 = mol in g/dm3 / molar mass

Molarity = 172.81 g/dm3 / 78 g/mol

Molarity = 2.22 mol/dm3

The molarity of the solution is 2.22 mol/dm3

4 0
3 years ago
What is the total number of valence electrons in the lewis structure of xeo4?
malfutka [58]
Here is a picture of which shows you how many valence electrons are in the Lewis structure of xeo4

6 0
3 years ago
How many sodium ions are in 1.4 kg of sodium chloride, NaCl?
Whitepunk [10]

Answer:

1.44 x 10²⁵ ions of Na⁺

Explanation:

Given parameters:

Mass of NaCl  = 1.4kg  = 1400g

Unknown:

Number of ions of sodium  = ?

Solution:

The compound NaCl in ionic form can be written as;

      NaCl →  Na⁺ + Cl⁻

In 1 mole of NaCl we have 1 mole of sodium ions

 Now, let us find the number of moles in NaCl;

  Number of moles  = \frac{mass}{molar mass}  

    Molar mass of NaCl  = 23 + 35.5 = 58.5g/mol

Number of moles  =  \frac{1400}{58.5}     = 23.93mol

 So;

   Since 1 mole of NaCl gives 1 mole of Na⁺  

    In 23.93 mole of NaCl will give 23.93 mole of Na⁺

1 mole of a substance  = 6.02 x 10²³ ions of a substance

  23.93 mole of a substance  =  6.02 x 10²³ x  23.93

                                                   = 1.44 x 10²⁵ ions of Na⁺

7 0
3 years ago
Methyl phenolphthalein and litmus
Butoxors [25]

Answer:

Both are the indicators which helps to identity the acid and base

4 0
3 years ago
Read 2 more answers
Created from the ...... of ..... in layers over long periods of time
Setler79 [48]
Sedimentary rocks. Not sure though
8 0
3 years ago
Other questions:
  • Eyeglasses provide as much protection as safety goggles. * true or false
    9·2 answers
  • The density of red wine is 1.01g/cm3 and the density of olive oil is 0.92g/cm3.A salad dressing that consisted of these two ingr
    14·1 answer
  • Describe how the energy in<br> ocean waves could be transformed into<br> electrical energy.
    7·1 answer
  • PLZ HELLLLPPPP
    9·1 answer
  • Explain why chemical equations have to be balanced
    5·2 answers
  • Classic c fires include what?
    10·1 answer
  • How many atoms are in 0.8 mols of lead?<br> show work.
    10·1 answer
  • The solubility of calcium oxalate, CaC2O4, in pure water is 4.8 × 10‑5 moles per liter. Cal­culate the value of Ksp for silver c
    11·1 answer
  • Chlorine, iodine, and bromine are located near each other on the periodic table. Which of these elements is the atom with the hi
    13·1 answer
  • What role does the grass play in the food web?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!