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
schepotkina [342]
3 years ago
5

A solution containing a mixture of lactic acid and lactate was found to have a pH of 4.34. Calculate the ratio of the lactate co

ncentration to the lactic acid concentration in this solution.
Chemistry
1 answer:
Galina-37 [17]3 years ago
7 0

Answer:

3.02

Explanation:

Step 1: Given and required acid

pH of the solution: 4.34

pKa of lactic acid: 3.86

Step 2: Calculate the ratio of the lactate concentration to the lactic acid concentration in this solution

We have a buffer system formed by a weak acid (lactic acid) and its conjugate base (lactate ion). We can find the ratio of the lactate concentration to the lactic acid concentration in this solution using the Henderson-Hasselbach equation.

pH = pKa + log [lactate]/[lactic acid]

4.34 = 3.86 + log [lactate]/[lactic acid]

[lactate]/[lactic acid] = 3.02

You might be interested in
How does water change as it freezes?
bagirrra123 [75]

Answer:

Hi there!

Your answer is:

A.

Explanation:

When frozen, water turns from a liquid to a solid! An example of this is a glass of water. You fill the glass with liquid tap water, and then put ice cubes in it. The ice cubes are solid and the tap water is liquid!

I hope this helps!

5 0
3 years ago
Clouds are made up of tiny droplets of water. Which two spheres are clouds a
MaRussiya [10]
C & D, clouds are apart of the Hydro and Atmosphere!
5 0
3 years ago
Help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeee this 10 points answer the ones i didnt answer
xxMikexx [17]
42cubic centimeter are in the block
volume is 48
4 0
4 years ago
Which of the following is the Arrhenius equation?<br>​
natka813 [3]

Answer:

A is the answer the reason why is because I got it right when I was doing my test

3 0
3 years ago
FIRST ANSWER = BRAINLIEST
STALIN [3.7K]

A_{r} = 24.3

The average atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.  

We multiply the atomic mass of each isotope by a number representing its <em>relative importance</em> (i.e., its % abundance).  

Thus,  

0.790 × 24 u = 18.96 u

0.100 × 25 u =   2.50 u

0.110 × 26 u =    <u>2.86 u</u>  

       TOTAL =  24.3   u

∴ The relative atomic mass of X is 24.3.


5 0
3 years ago
Other questions:
  • How many H atoms are there in 1 mol of water?
    10·1 answer
  • If 6 moles of sugar was added to a kilogram of water, the new boiling point would be _____ degrees C.
    5·1 answer
  • Which data table below correctly describes the parts of an atom?
    9·1 answer
  • A 12-liter tank contains helium gas pressurized to 160 \rm atm.How many 3-liter balloons could the 12-L helium tank fill? Keep i
    15·1 answer
  • How many electrons does strontium give up to achieve a noble-gas configuration?
    6·1 answer
  • Which fact about fuel cells is FALSE?
    7·1 answer
  • oth hydrogen sulfide (H2S) and ammonia (NH3) have strong, unpleasant odors. Which gas has the higher effusion rate? If you opene
    14·2 answers
  • Is salt pure or impure
    14·1 answer
  • The phase change between white tin and gray tin is difficult to observe directly. Both substances can be burned, however. From t
    14·1 answer
  • The pressure exerted by each individual gas in a mixture of gases is called its pressure. This pressure is proportional to the f
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!