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
natita [175]
3 years ago
15

Kw, the equilibrium constant for the ionization of water by the equation below, is 1.0 x 10-14. what does that mean when we are

considering pure water?
Chemistry
1 answer:
alex41 [277]3 years ago
3 0

Answer: Concentration of [H^+]\&[OH^-] are equal in pure water.

Explanation:

H_2O\rightleftharpoons H^++OH^-

K_{eq}=\frac{[H^+][OH^-]}{[H_2O]}

K_w=K_{eq}[H_2O]=[H^+][OH^-]=1.0\times 10^{-14}

Also, pure water has neutral with 7 pH value ,

pH=7=-\log[H^+]

[H^+]=1\times 10^{-7}mol/L

So, theK_w of pure water is given

K_w=[H^+][OH^-]=1\times 10^{-7}\times[OH^-]= 1\times 10^{-14}

[OH^-]=1\times 10^{-7}mol/L

Hence, Concentration of [H^+]\&[OH^-]are equal in pure water


You might be interested in
The pH of a solution in which the concentration of H+ is 0.010M will be:
shusha [124]

B: 2

If it's right plz give brainliest lol <3

7 0
3 years ago
In the electrolysis of molten libr, which product forms at the cathode?
Ira Lisetskai [31]
Sodium metal forms at the cathode
6 0
3 years ago
A transformer has 90 turns in the primary coil and 9 turns in the secondary coil If the output voltage is 6 V, what is the input
Afina-wow [57]

Answer:

60 V

Explanation:

From;

Vs/Vp = Ns/Np

Where;

Vs = voltage in the secondary coil = 6V

Vp = voltage in the primary coil= ??

Ns = number of turns in the secondary coil = 9

Np= number of turns in the primary coil = 90

6/Vp = 9/90

Vp= 90 * 6/9

Vp=  60 V

6 0
3 years ago
How many moles are in 24.75 g of H2O? What is given the conversation and the unknown?
riadik2000 [5.3K]

Answer:

1.373 mol H₂O

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

24.75 g H₂O

<u>Step 2: Identify Conversions</u>

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol

<u>Step 3: Convert</u>

<u />24.75 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O} ) = 1.37347 mol H₂O

<u>Step 4: Check</u>

<em>We are given 4 sig figs. Follow sig fig rules and round.</em>

1.37347 mol H₂O ≈ 1.373 mol H₂O

7 0
3 years ago
Why do oxygen and hydrogen connect (attach) underwater? ​
Usimov [2.4K]
The slight positive charges on the hydrogen atoms in water molecules attract the slight negative charges on the oxygen atoms of the other water molecules
7 0
3 years ago
Other questions:
  • An automobile engine provides 642 Joules of work to push the pistons. In this process the internal energy changes by -2952 Joule
    7·1 answer
  • What is the molarity of a solution that is made by adding 57.3 g of MgO to 500.0 mL of solutions
    12·1 answer
  • Given the balanced equation 4al s 3o2 g which type of chemical reaction is shown
    7·1 answer
  • The element lead (Pb) consists of four naturally occurring isotopes with atomic masses 203.97302,205.97444,206.97587, and 207.97
    12·1 answer
  • Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene
    5·1 answer
  • The image represents the reaction between a certain number of molecules of N2 and H2
    8·1 answer
  • The difference between GDP and GNP
    13·1 answer
  • What is true about most of the wavelengths found in the electromagnetic spectrum?
    12·1 answer
  • A comparison often made between solids and
    14·2 answers
  • Runoff from agricultural land carries chemicals from fertilizers that collect in a lake. The buildup of chemicals can eventually
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!