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
Igoryamba
3 years ago
10

Given that Kw for water is 2.4×10−14 M2 at 37 °C, calculate the pH of a neutral aqueous solution at 37 °C, which is the normal h

uman body temperature. pH= Is a pH=7.00 solution acidic, basic, or neutral at 37 °C? neutral basic acidic
Chemistry
1 answer:
Nitella [24]3 years ago
6 0

Answer:

pH = 6.80. The aqueous solution is slightly acid

If pH is 7.00 at 37°C, solution is neutral

Explanation:

2H₂O ⇄  H₃O⁺  + OH⁻     Kw = 2.4×10⁻¹⁴

To determine the pH of a solution, we must consider the [H₃O⁺]

[H₃O⁺] . [OH⁻] = 2.4×10⁻¹⁴

[H₃O⁺] =  [OH⁻]  → √2.4×10⁻¹⁴ =  [H₃O⁺]

1.55×10⁻⁷ = [H₃O⁺]

pH = - log 1.55×10⁻⁷ = 6.80

pH = 7 → neutral

pH < 7 → acid

pH > 7→ basic

You might be interested in
Salt is dissolved in a flask of tap water. Distilling the mixture causes the salt to separate from the water. Which type of ener
Alik [6]
Heat energy is required.
In distillation, the solution is first heated, where heat energy is required, such as using a bunsen burner.
When the solution is heated, the water may reach its boiling point and evaporate. However, salt does not. When water molecules evaporates, it travels through a condenser that cools it down into liquid again. Therefore we get pure water. Salt is also obtained in the original beaker.
Therefore to first start this process, heat energy is required.
6 0
2 years ago
Read 2 more answers
what is the balanced net ionic equation for the reaction in acidic solution of fe2+ and kmno4 (fe2+ becomes ff3+ and MnO4 become
sveticcg [70]
The balanced half reactions are
4 Fe2+   ====> 4 Fe3+  + 4 e-

<span>MnO42- + 8 H+ +  4 e- ===>  Mn2+  + 4 H2O

The net ionic equation is
4 Fe2+ + </span>MnO42- + 8 H+ ===> 4 Fe3+  + Mn2+  + 4 H2O<span />
4 0
3 years ago
A mixture in which one substance is evenly mixed with another substance is called a..
Brrunno [24]

Answer:

C solution

Explanation:

i hope that i got it right im not very good with questions

8 0
2 years ago
First to answer correctly gets brainleist
Brums [2.3K]
When it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere. It could be A I’m not sure if this helps.
6 0
3 years ago
How many molecules are in 12.5g of water<br> (H2O)?<br> Molar mass <br> Help asap
ira [324]

Answer:

Explanation:

18.01528 g/mol. I googled this, but it would be 16 for O plus 2 for the 2 H's. 18 g/mol divided by 12.5g=1.44 mol of H20.

1.44mol*6.02*10x^{23} molecules/mol= 8.6688*10^23.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A scientific theory _______.
    7·2 answers
  • Enter the appropriate symbol for an isotope of calcium-42 corresponding to the isotope notation AZX.
    8·2 answers
  • Which of the following statements is true? Atoms of isotopes of an element have different numbers of electrons. Atoms of isotope
    15·2 answers
  • What causes interstellar dust and clouds of gas to condense into planets and stars?
    6·1 answer
  • Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxi
    13·1 answer
  • Which type of organism carries out cellular respiration
    14·2 answers
  • Car battery energy that makes device work
    10·2 answers
  • Which of the following is a salt? <br> C6H12O6<br><br> O2<br><br> C2H2<br> K C l
    14·1 answer
  • I don’t know what to say
    10·1 answer
  • If sodium is burned in chlorine gas, a compound is formed that dissolves in water. What colour will the solution be?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!