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
krok68 [10]
2 years ago
15

What is the pH of a 0.75 M HNO3 solution

Chemistry
2 answers:
pogonyaev2 years ago
6 0

<u>Answer:</u> The pH of the solution is 0.125

<u>Explanation:</u>

pH is the negative logarithm of hydrogen ion concentration present in a solution.

To calculate the pH of the reaction, we use the equation:

pH=-\log[H^+]

The chemical equation for the dissociation of nitric acid follows:

HNO_3\rightarrow H^++NO_3^-

By stoichiometry of the reaction:

1 mole of nitric acid produces 1 mole of hydrogen ions and 1 mole of nitrate ions.

So,

[H^+]=0.75M

Putting values in above equation, we get:

pH=-\log(0.75)\\\\pH=0.125

Hence, the pH of the solution is 0.125

Sauron [17]2 years ago
4 0
Hello!

The dissociation reaction of HNO₃ is the following:

HNO₃ → H⁺ + NO₃⁻

This is a strong acid, so the concentration of HNO₃ would be the same as the concentration of H⁺. The formula for pH is the following:

pH=-log([H_3O^{+}])=-log(0,75M)=0,12

So, the pH would be 0,12

Have a nice day!
You might be interested in
True or false: potential energy increases as like charges get closer to one another
Veronika [31]
True, is the correct answer.
3 0
3 years ago
How many grams of K2Cr207 are in 250. mL of 0.500M of K2Cr207:
goldenfox [79]

<u>Analysing the Question:</u>

We are given a 250 mL solution of 0.5M K₂Cr₂O₇

Which means that we have:

0.5 Mole in 1L of the solution

0.125 moles in 250 mL of the solution      <em>[dividing both the numbers by 4]</em>

<em />

<u>Mass of K₂Cr₂O₇ in the given solution:</u>

Molar mass of K₂Cr₂O₇(Potassium Dichromate) = 194 g/mol

<em>we know that we have 0.125 moles in the 250 mL solution provided</em>

Mass = Number of moles * Molar mass

Mass = 0.125 * 194

Mass = 36.75 grams

7 0
3 years ago
HELP!! ASSIGNMENT DUE TODAY! PLEASE HELP!!! I'LL GIVE 21 POINTS!!!!
ra1l [238]

mitochondria

im not 100% sure but it makes sense

8 0
3 years ago
Which of the following is true about the gas we call “air.” (the atmosphere)
mafiozo [28]

Answer:

B. Composed of molecules relatively far apart.

Explanation:

The gas we call "air" has molecules that are relatively far apart.

4 0
3 years ago
Read 2 more answers
Callie rode her bike from the tree at point A back to her house to pick up her jacket while Sue road her bike directly from the
Serjik [45]

B

We can perceive this question as a vector (which has both magnitude and direction). The magnitude is the displacement and the direction is where they are headed.

Explanation:

The displacement (magnitude of the vector) for Callie, which is also equal to the distance, is; 4m + 3m = 7m while that of Sue is 5m. Therefore the displacement for Callie is greater than Sue’s.

Nonetheless the direction in the vector is the same, which is towards point C.

Learn More:

For more on vectors;

brainly.com/question/12006588

brainly.com/question/11823989

#LearnWithBrainly

3 0
3 years ago
Read 2 more answers
Other questions:
  • In a coffee shop, the following coffee samples are prepared for customers. i. 10 g of sugar added to 100 g of coffee ii. 10 g of
    14·2 answers
  • A sample from solution a and solution b were each tested with blue colored glucose indicator solution before the solutions were
    14·1 answer
  • How many valence electrons configuration of oxygen?
    12·1 answer
  • Which of the following elements has the highest electronegativity?
    10·2 answers
  • A tank holds 6.90 m3 of water. What is the volume in ft3? (3.28 ft = 1 m, Remember significant figures, but this answer does not
    13·2 answers
  • Which of the following temperature is the coldest:
    8·2 answers
  • There is no connection between the study of chemistry and physics. A. true B. false
    15·1 answer
  • How many grams are in 3.0 moles of H2O
    15·1 answer
  • Use the chemical equation below to determine how many moles of ammonia
    9·1 answer
  • Number of moles in 31.99g O2 <br> And 176.8g NaCl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!