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
Advocard [28]
3 years ago
6

What is the pH of a solution of KOH with a hydroxide concentration of [OH⁻] = 1.10 x 10⁻⁴

Chemistry
1 answer:
olga2289 [7]3 years ago
3 0

Answer:

p[H+] = 10.042

Explanation:

As we know that

pKw = pH + pOH......eq (1)

we will calculate the pH of OH- and then we will calculate the pH of H+

So p[OH-] = - log [1.10 * 10^{-4}]

Solving the right side of the equation, we get

p[OH-]

= - [-3.958]\\= 3.958

Now we know that

pKw = 14.0

Substituting the value of pOH in the above equation, we get -

14.0 = p[H+] + 3.958\\p[H+] = 14 - 3.958\\p[H+] = 10.042

You might be interested in
Please help me outttt
leonid [27]

Answer:

4.) 9, 1, and 4    5.) 4, 1, and 4

Explanation:

I am not quite sure about this because I cannot remember if the coefficient (the number before the elements) is applied to every element in the compound. If it is then your number of atoms are as follows: CORRECTION: you do not have to apply the coefficient to every element only the one that is after it. So when you back and fix the error your number of atoms will be as follows:

number 4

H: 9

P: 1

O: 4

number 5:

H: 4

S: 1

O: 4

you can calculate the number of atoms present in this compound by multiplying the coefficient and the subscripts of each atom.

hope this helped you :)

7 0
3 years ago
What mass of oxygen is contained in a 5.8 g sample of NaHCO3?
White raven [17]
Molar mass of NaHCO3 is 83.9. moles of Na...O3= 5.8/83.9
=0.0691
for every mole of Na..O3 there are 3 O
n(O) = n(NaHCO3) x3
        = 0.207
mass of O is the moles x molar mass (16)
therefore the mass of O is 3.3 grams
4 0
3 years ago
How many molecules are in 5.40 mol of CO2?
Elena L [17]

Answer:

1 mol compund has 6.023x10 to the power of 24

so 5.40 mol has (5.40 x 6.023 x 10 to the power of 23)

Explanation:

8 0
3 years ago
Read 2 more answers
Pls explain how the energy of a marble is transformed as it rolls down a ramp.
Alex73 [517]

Answer:

Energy is not created but transformed meaning the energy just transformed into a different type meaning at all points of the ramp the energy stays the same because all of its energy is just transformed into kinetic energy.

Explanation:

3 0
3 years ago
How is water used in human living? Give at least five examples.
Simora [160]
Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water.
6 0
3 years ago
Other questions:
  • In which era did the first fish appear?
    15·1 answer
  • Características de la báscula granataria porfi
    8·1 answer
  • 1. Explain what it means when we say a substance is magnetic. (HINT: Be sure to mention the role of the Electrons)
    5·1 answer
  • Some facts or characteristics of endoplasmic reticulum
    14·1 answer
  • What is caused by the heating and coolingof the earth
    7·1 answer
  • Why do you think the experimenter conducted this experiment in a lab rather than in the natural world, where this
    14·1 answer
  • The compound represented by this formula can be classified as an
    10·1 answer
  • 2 Points
    6·1 answer
  • How can the periodic table be used to infer the number of valence electrons in an atom?
    10·1 answer
  • Which is larger 1.45 or 1.2544 for density
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!