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
MissTica
3 years ago
8

Calculate the ph of a solution that is 0.295 m in sodium formate (nahco2) and 0.205 m in formic acid (hco2h). the ka of formic a

cid is 1.77 ⋅ 10-4.
Chemistry
1 answer:
Evgesh-ka [11]3 years ago
7 0
Hello!

The chemical reaction for the dissociation of Formic Acid is the following:

HCOOH + H₂O ⇄ HCOO⁻ + H₃O⁺

From this reaction we can use the Henderson-Hasselbach equation to find the pH, but first we need to find the value for the pKa:

pKa=-log(Ka)=3,75

pH=pKa + log([HCOO⁻]/[HCOOH])

pH=3,75 + log (0,295/0,205)

pH= 3,90

Have a nice day!

You might be interested in
HELP QUICK ILL GIVE YOU BRAINLIEST AND 25 POINTS! bromine (br) has four energy levels. name 2 other elements that would have fou
Temka [501]

Answer:

titanium and potassium

Explanation:

6 0
3 years ago
Read 2 more answers
Which statement is best described as a atom
myrzilka [38]

a core of protons and neutrons surrounds by electrons

6 0
3 years ago
What results when two waves that are completely out of phase meet?
ELEN [110]

Answer:

The result is a superposition which is twice the amplitude of each input wave. Φ = π means the two waves are completely OUT OF PHASE, and so add completely destructively. The result is a superposition which has no amplitude at all.

Explanation:

The result is a superposition which is twice the amplitude of each input wave. Φ = π means the two waves are completely OUT OF PHASE, and so add completely destructively. The result is a superposition which has no amplitude at all.

5 0
1 year ago
Read 2 more answers
If a car travels 400 meters in 20 sec how fast is it going
pochemuha

Answer:

400 meters every 20 seconds

Explanation:

7 0
3 years ago
Read 2 more answers
Sort the following chemicals for their ability to act as an oxidizer. List from strongest to weakest; 1 being strongest, 6 being
spin [16.1K]
Answer : If we list the given chemicals according to their increasing oxidising ability then the order will be like this; 1 being the strongest and 6 being the weakest 
1. K > 2. Ca >3. Ni> 4. Cu> 5. Ag> 6.Au

Explanation : Considering the reduction potential of each chemical species it will be easy to identify their oxidising capacity and differentiate accordingly;

More negative the value of reduction potential more is the ability of the chemical species to get oxidised.

Chemicals with their reduction potential is given below.

K has -2.92; Ca has -2.76; Ni has -0.23; Cu has 0.52; Ag has 1.50 and Au has 1.50.


7 0
3 years ago
Read 2 more answers
Other questions:
  • How does the heart work with other organs to keep a healthy body?
    10·1 answer
  • Differentiate between a pure substance and a mixture and provide examples
    12·1 answer
  • Which is the formula for diarsenic pentoxide?<br><br> Ar2O5<br> As5O2<br> As2O5<br> 2As5O
    15·2 answers
  • The winner of the 20 km race ran at an average speed of 4 m / s. How long did he take to complete the race?
    10·1 answer
  • Choose all the answers that apply.
    13·2 answers
  • Examples of the skills used in science include _____ and _____.
    9·1 answer
  • What's the difference between a tulip cell and a baby chick cell?
    14·2 answers
  • 2. What is the chance that a carbon-14 atom will decay in six thousand years?
    9·1 answer
  • What is the percentage of nitrogen, by mass, in calcium nitrate?.
    6·1 answer
  • Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!