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
Which of the following describes the relationship correctly?
galben [10]
A. Air expands, becomes less dense and rises when the temperature is high due to the increased kinetic energy. This causes the air molecules to move around much more so they are further apart.
8 0
3 years ago
Read 2 more answers
In the reaction Ca + Cl2 → CaCl2, what is the mole ratio of chlorine to calcium chloride?
Anit [1.1K]

Answer:

D. 1:1

Explanation:

For every 1 mole of chlorine (Cl₂), there is one mole of calcium chloride (CaCl₂).

So, the mole ratio of chlorine to calcium chloride is 1:1.

Hope this helps. :)

6 0
3 years ago
Read 2 more answers
What causes objects to move or stay still?<br> Claim <br><br> Reasoning:<br><br> Evidence:
kari74 [83]

Answer:

For an object to move, there must be a force. A force is a push or pull that causes an object to move, change direction, change speed, or stop. Without a force, an object that is moving will continue to move and an object at rest will remain at rest.

Explanation:

7 0
3 years ago
Read 2 more answers
Help me please i'm begging you its DUE today its super easy
NARA [144]

Answer:

The answer will be listed below.

Explanation:

Kinetic Energy- Energy of motion, increases with mass

Potential Energy- Stored energy, increases with height

Both- Increases with velocity

6 0
2 years ago
Convert 675 nanograms to milligrams.
STALIN [3.7K]

675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

<h3>How to convert nanograms to milligrams?</h3>

Nanograms is a unit of mass equal to 0.000000001 grams and has a symbol of ng.

On the other hand, milligrams is another unit of mass equal to 0.001grams and has a symbol of mg.

Nanograms and milligrams are both units of mass and can be inter-convertible as follows:

1 nanogram = 1 × 10-⁶ milligram

According to this question, 675 nanograms is equivalent to 675 × 10-⁶ milligrams.

Therefore, 675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

Learn more about milligrams at: brainly.com/question/20320382

#SPJ1

7 0
1 year ago
Other questions:
  • When you walk, you push against the floor, and _________.
    8·1 answer
  • Ludwig Boltzmann developed a model that relates entropy to _________.
    15·1 answer
  • What is the molecular formula of a compound with the empirical formula HSO4 and a formula mass of 194.13 amu?
    9·1 answer
  • if your hot pack requires 3.0g of a solid to obtain the correct temperature change, instead of the correct amount (1.4g) calcula
    6·1 answer
  • What volume units are greater than a liter
    9·1 answer
  • Which of the following is a heterogeneous mixture?
    13·1 answer
  • The number of orbitals in each principle energy level (n) equals​
    12·1 answer
  • This condition affects more than 25 million Americans. Often triggered by allergies, this condition causes a constriction of the
    7·1 answer
  • 1.How far can you travel if you drive 4 hours and can average 120 Km/hr?
    9·2 answers
  • How many grams of Zn(NO3) are in 3.67 miles?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!