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
GarryVolchara [31]
3 years ago
12

A solution has [oh−] = 4.0×10−8. what is the value of [h+] for the solution? answers

Chemistry
2 answers:
grandymaker [24]3 years ago
8 0

<u>Answer:</u> The pH of the solution is 6.68

<u>Explanation:</u>

To calculate the pOH of the solution, we use the equation:

pOH=-\log[OH^-]

We are given:

[OH^-]=4.8\times ^{-8}M

Putting values in above equation, we get:

pOH=-\log (4.8\times 10^{-8})\\\\pOH=7.32

Calculating the pH of the solution:

pH+pOH=14\\\\pH=14-7.32=6.68

Hence, the pH of the solution is 6.68

Lelu [443]3 years ago
5 0
Answer is: the hydrogen ion concentration is 2.5·10⁻⁷ M.<span>
[OH</span>⁻] = 4·10⁻⁸<span> mol/L, equilibrium concentration of hydroxide anion.
[H</span>⁺] is the equilibrium concentration<span> of hydrogen ions.
[OH</span>⁻] · [H⁺] = 10⁻¹⁴ mol²/L², ionicproduct of water on room temperature.<span>
[H</span>⁺] = 10⁻¹⁴ mol²/L² ÷  4·10⁻⁸ mol/L.<span>
[H</span>⁺] = 2,5·10⁻⁷ mol/L = 0,00000025 mol/L.
You might be interested in
An atom is composed of protons, neutrons, and electrons. What is the electric
OlgaM077 [116]

Answer:

second one

Explanation:

7 0
3 years ago
Given, 2Ca + O2 -&gt; 2CaO, what is the 2 located in front of calcium called??
EleoNora [17]
Moles used to react
3 0
3 years ago
The rate constant of a reaction is measured at different temperatures. A plot of the natural log of the rate constant as a funct
Wittaler [7]

Answer:

The activation energy is 7.11 × 10⁴ J/mol.

Explanation:

Let's consider the Arrhenius equation.

lnk=lnA-\frac{Ea}{R} .\frac{1}{T}

where,

k is the rate constant

A is a collision factor

Ea is the activation energy

R is the ideal gas constant

T is the absolute temperature

The plot of ln k vs 1/T is a straight line with lnA as intercept and -Ea/R as slope. Then,

\frac{-Ea}{R} =-8.55 \times 10^{3} K^{-1} \\Ea= 8.55 \times 10^{3} K^{-1} \times 8.314 \frac{J}{K.mol} =7.11 \times 10^{4} J/mol

8 0
3 years ago
Select the steps that are associated with energy entering the system. Check all that apply.
quester [9]

Answer: option c. the mixing of solute and solvent molecules

Explanation:

8 0
3 years ago
Read 2 more answers
Chuẩn Độ 15 ml dung dịch CH3COOH 0,2 m bằng dung dịch NaOH 0,2 m
mina [271]

Answer:

<h3>I don't know what is the answer of your question sorry never mind..</h3>

Explanation:

<h3>And please marks me as brainliest... </h3>
3 0
3 years ago
Other questions:
  • As AgNO3 dissolves how does the temperature of the solution change
    11·1 answer
  • A student performs a titration procedure by adding NaOH to a solution that contains H+ ions. She added the indicator, phenolphth
    10·1 answer
  • Starting with the unbalanced equation for the combustion of ethanoic acid, CH3COOH(l)+O2(g)→CO2(g)+?H2O(l) what coefficient shou
    6·1 answer
  • What is Green Chemistry?
    6·1 answer
  • Which radioisotope is naturally occurring?
    12·1 answer
  • How would you use ir and 1h-nmr spectroscopy to distinguish between these two isomeric compounds? isomer
    7·1 answer
  • The chemical reaction between iron (Fe) and oxygen (O) results in the loss of electrons from iron. This reaction is an example o
    9·2 answers
  • The size of earthquakes is usually measured using the moment magnitude scale, which is a measure of the energy released.
    6·1 answer
  • Is this correct? Just wanna make sure :)
    5·1 answer
  • How many grams of H2O will be produced if 8.08x1024 atoms of Fe are produced?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!