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
olga2289 [7]
2 years ago
8

Gastric acid plays a key role in the digestion of proteins by activating digestive enzymes and often has a pH value in the range

of 1.5 to 3.5. If the pH of the acid at a given time is found to be 1.25, calculate the molarity of the gastric acid juice.
Chemistry
1 answer:
faust18 [17]2 years ago
6 0

If the pH of the acid at a given time is found to be 1.25, then the molarity  of the gastric acid juice is 0.056M.

<h3>What is pH?</h3>

pH is define as the negative logarithm of the concentration of H⁺ ions present in any solution and it will be represented as:

pH = -log[H⁺]

Concentration will be present in the form of molarity and pH value for gastric acid is given 1.25 means it is strong acid as it completely dissociates into their ions.

Required equation for calculation will be:

[H⁺] = 10^{-pH}

[H⁺] = 10^{-1.25}

[H⁺] = 0.056 M

Hence molarity of the gastric acid juice is 0.056M.

To know more about pH & molarity, visit the below link:

brainly.com/question/27298208

You might be interested in
Dome mountains are formed when:
Airida [17]

Answer:

Dome mountains are formed when hot molten material (magma) rising from the Earth's mantle into the crust that pushes overlying sedimentary rock layers upward to form a “dome” shape.

Explanation:

6 0
3 years ago
You need to produce a buffer solution that has a pH of 5.31. You already have a solution that contains 10. mmol (millimoles) of
Karolina [17]

Answer:

37 mmol of acetate need to add to this solution.

Explanation:

Acetic acid is an weak acid. According to Henderson-Hasselbalch equation for a buffer consist of weak acid (acetic acid) and its conjugate base (acetate)-

pH=pK_{a}(acetic acid)+log[\frac{mmol of CH_{3}COO^{-}}{mmol of CH_{3}COOH }]

Here pH is 5.31, pK_{a} (acetic acid) is 4.74 and number of mmol of acetic acid is 10 mmol.

Plug in all the values in the above equation:

5.31=4.74+log[\frac{mmol of CH_{3}COO^{-}}{10}]

or, mmol of CH_{3}COO^{-} = 37

So 37 mmol of acetate need to add to this solution.

3 0
2 years ago
What is a liquid mixture whose parts are evenly blended?.
Eva8 [605]

Answer:

A homogeneous mixture is a type of mixture in which the individual substances are evenly mixed.

Explanation:

3 0
2 years ago
There are seven major levels of classification. Kingdom and Phylum are just two of the levels. Which of the following are also m
kumpel [21]
A) The class and C) Family would be the only accurate option. Here are the levels from largest to smallest: <span>kingdom, phylum, class, order, family, genus and species.</span>
7 0
3 years ago
What is the main difference between a homogeneous mixture and a heterogeneous mixture?
Sholpan [36]
The answer is <span>The components of a homogeneous mixture are evenly distributed.

In a homogeneous mixture, all components are evenly distributed. They are known as solutions. In a heterogeneous mixture, components are not evenly distributed. It consists of visibly different components. For example, milk is the homogeneous mixture, you cannot see its particles. But milk and cereals are the heterogeneous mixtures.</span>
7 0
3 years ago
Other questions:
  • Which process is an example of a physical change?
    15·1 answer
  • How many atoms are in a single molecule of water H2O
    11·1 answer
  • Which best describes ionic compound formulas?
    6·2 answers
  • Which discovery did george mendel make
    6·1 answer
  • A beaker holds 962 g of a brine solution that is 6.20 percent salt. If 123g of water are evaporated from the beaker, how much sa
    15·1 answer
  • what radius (mm) must a steel (iron) ball bearing have if it is to have a mass of 3.25g? density of iron = 7.86g/cm3 V=4/3 pie r
    12·1 answer
  • A 0.085 M solution of a weak acid has a pH of 2.68. Determine the Ka value for this acid.
    6·1 answer
  • Nitrogen is collected over water until a volume of 2.0 liters had been obtained. The room pressure is 740mm and the temperature
    12·1 answer
  • Which of the following could fom an ionic bond with an anion?
    9·1 answer
  • what is the reason for the difference between the values of the dry adiabatic lapse rate and the moist adiabatic lapse rate?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!