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
Eduardwww [97]
3 years ago
13

HELP!!!

Chemistry
2 answers:
lubasha [3.4K]3 years ago
7 0

<u>Answer:</u> The concentration of hydronium ions in a solution is 2.5\times 10^{-5} and the concentration of hydroxide ion concentration is 4\times 10^{-10}

<u>Explanation:</u>

  • pH is defined as negative logarithm of hydrogen ion concentration. It is basically defined as the power of hydrogen ions in a solution.

Mathematically,

pH=-\log[H^+]

pH of the solution = 4.6

Putting values in above equation, we get:

4.6=-\log[H^+]

[H^+]=antilog(-4.6)

[H^+]=2.5\times 10^{-5}

We are given:

pH of the solution = 4.6

  • To calculate the hydroxide ion concentration of the solution, we need to determine the pOH of the solution first. And to calculate that we use the equation:

pH+pOH=14\\pOH=14-4.6=9.4

  • pOH is defined as negative logarithm of hydroxide ion concentration. It is basically defined as the power of hydroxide ions in a solution.

Mathematically,

pOH=-\log[OH^-]

pOH of the solution = 9.4

Putting values in above equation, we get:

9.4=-\log[OH^-]

[OH^-]=antilog(-9.4)

[OH^-]=4\times 10^{-10}

Hence, the concentration of hydronium ions in a solution is 2.5\times 10^{-5} and the concentration of hydroxide ion concentration is 4\times 10^{-10}

vladimir2022 [97]3 years ago
4 0

Answer:

2.5 × 10⁻⁵ M H₃O⁺ and 4.0 × 10⁻¹⁰ M OH⁻.

Explanation:

<em>∵ pH = - log[H₃O⁺]</em>

∴ 4.6 = - log[H₃O⁺].

∴ log[H₃O⁺] = - 4.6.

∴ [H₃O⁺] = 2.51 x 10⁻⁵.

∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.

[H₃O⁺] = 2.51  x 10⁻⁵ M.

∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺] = 10⁻¹⁴/(2.51  x 10⁻⁵ M) = 3.98 × 10⁻¹⁰ M ≅ 4.0 × 10⁻¹⁰ M.

<em>So, the right choice is: 2.5 × 10⁻⁵ M H₃O⁺ and 4.0 × 10⁻¹⁰ M OH⁻.</em>

You might be interested in
A student mixes some water at room temperature with a white powder also at room temperature. The white powder disappears into th
Leya [2.2K]
Chemical change, because the white powder heated the water and caused a thermal reaction, and possibly gas was produced due to bubbles.
5 0
2 years ago
What does the Aufbau principle state?
Vikentia [17]
Hello there!

The correct answer is B. Electrons will be added to an atom starting from the lowest possible level or sublevel.

Hope This Helps You!
Good Luck :) 
8 0
3 years ago
Read 2 more answers
Need answer asap 4 both
marishachu [46]

The persistence of vision is regarded as an optical illusion but it is actually part of human physiology.

<h3>What is persistence of vision?</h3>

The term persistence of vision is the idea that an object is able to remain is sight for a long time even when the object has been removed. This is often used by performers to create a remarkable impression on the audience. The persistence of vision is regarded as an optical illusion but it is actually part of human physiology.

The way that a performance can be designed to make the audience to know that this is the most important scene is called follow through.

Learn more about optical illusion:brainly.com/question/28179807

#SPJ1

7 0
1 year ago
Calculate the pH for the following solutions and indicate whether each solution is acidic or basic.
Nadya [2.5K]
The answer would for sure be 178 because acid & base make that amount so yea!! I’m talllyyy right
6 0
2 years ago
Read 2 more answers
H2 is a molecule, but H2O is a _____. 1.diatomic molecule, 2.compound, 3.neuron, 4.photon,
Sonbull [250]
H2O is a compound. So it's second one.
8 0
3 years ago
Other questions:
  • Volcano formation is directly related to plate tectonics. <br><br><br> True<br> False
    6·1 answer
  • Gas laws describe and predict the behavior of gases without attempting to explain why they happen.
    7·1 answer
  • What is the [H3O+] in a solution with [OH-] = 1.0 x 10-12 M?
    9·1 answer
  • If a sample of matter cannot be separated by physical means, what can be said with certainty about that sample?
    8·1 answer
  • which best describes an element? - a pure substance - a type of a mixture - a pure compound - an impure substance
    10·2 answers
  • Describe the experiment to prove Ohm's law ​
    5·2 answers
  • How many total atoms in 5 mg(NO3)2
    13·2 answers
  • What volume of water must be added to 10.5 mL of a pH 2.0 solution of HNO3 in order to change the pH to 4.0 g
    15·1 answer
  • Help! Please I’m in science
    11·2 answers
  • What must happen for an electron to return to its original energy level from a higher energy level?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!