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
Rainbow [258]
3 years ago
12

Which will provide the most direct measure of pH by measuring the hydrogen ion concentration of a solution?

Chemistry
2 answers:
pochemuha3 years ago
6 0

Answer : The correct option is, pH meter

Explanation :

pH meter : It is a type of instrument which measures the activity of hydrogen ion in water based solution. Or we can say that it will provide the most direct measure of pH by measuring the hydrogen ion concentration of a solution.

Litmus paper : It is a type of paper which changes the color based on whether the solution is an acid or a base.

Phenolphthalein : It is an indicator which changes the color based on pH values.

Bromthymol blue : It does not tell the concentrations, it is a pH indicator for the weak acids and bases.

Hence, the pH meter provide the most direct measure of pH by measuring the hydrogen ion concentration of a solution.

pogonyaev3 years ago
5 0
PH meter is dircet so the answer is C

You might be interested in
A popular car has a gas tank that holds a maximum of 14.5 gallons of fuel. What is
gulaghasi [49]

Taking into account the change of units, the size of the tank is 54.88 liters.

In first place, the rule of three is a tool used to quickly solve problems involving a proportional relationship between two variables.

The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), the direct rule of three should be applied.

The rule of three is applied as follows, with A, B and C being known values ​​and D being an unknown value: if A maintains a certain relationship with B, and it is known that C and D have the same relationship, it is possible to calculate the unknown value D using the following expression:

D=\frac{CxB}{A}

In this case, the rule of three can be applied as follows: if 1 gallon is equal to 3.785 liters, 14.5 gallons are equal to how many liters?

D=\frac{14.5 gallonsx3.785 liters}{1 gallon}

Solving:

D= 54.88 liters

In summary, the size of the tank is 54.88 liters.

Learn more with this example:

  • <u>brainly.com/question/17839792?referrer=searchResults</u>
  • <u>brainly.com/question/14586541?referrer=searchResults</u>

7 0
3 years ago
Read 2 more answers
If 200 g of water is heated from 20 C to 40 C, then what is the heat added in kilocalories (same as food calories)?
Maslowich

Answer: 4Kcal

Explanation:

H= mcø

M=200g

C= 1 cal/g/°c

Ø= 40-20=20°c

H= 200*1*20= 4000calories= 4Kcal

8 0
3 years ago
What is the total pressure exerted by a mixture containing two gases if the partial
nikdorinn [45]

Answer: 100 torr

Explanation:

8 0
3 years ago
The atomic number tells us how many __ or __ an element contains.
CaHeK987 [17]
Answer:-
Electrons or Protons

Explanation:-
Atomic number (Z) is defined as:
>>“The total number of protons in the nucleus of an atom is called atomic number”. All atoms of an element have the same number of protons and electrons.
>>“The total number of protons in the nucleus or electrons revolving around the nucleus of an atom”.
Example:
For instance, Hydrogen has the Atomic number(Z) 1.
Helium has the atomic number 2.
Oxygen has the atomic number 8.
| Note | Atomic number is represented by “Z”. And some ppl don’t consider the 2nd definition it’s upto u to do both or the standard one.

5 0
3 years ago
What role does photosynthesis have in the carbon cycle?
hram777 [196]

Answer:

I think option A..

Explanation:

hope it's help uu

if wrong then sry

6 0
3 years ago
Read 2 more answers
Other questions:
  • Use the equation to determine what mass of FeS must react to form 326 g of FeCl2.
    7·1 answer
  • Cuántos electrones contiene el átomo de helio​
    15·1 answer
  • How do the properties of table salt compare with those of sodium and chlorine?
    7·1 answer
  • What is the percentage composition of cucl
    14·2 answers
  • Given: NaCl + AgNO3 -&gt; AgCl + NaNO3
    9·2 answers
  • Plz answer the first two questions and maybe the third​. I will give brainliest.
    14·1 answer
  • Which of the following describes the energy transformations that occur when a toaster is used to make toast?
    5·2 answers
  • Loren has the samples of elements that are listed below at room temperature. He exposes the samples to the same heat source unti
    14·2 answers
  • The Ksp of silver bromide at 25°C (298 K) is 5.0 x 10-13. Write the solubility expression hydrogen oxygen for this compound and
    10·1 answer
  • The magnet below is cut in half. What will be the result
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!