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
Annette [7]
3 years ago
12

the ph of a naoh solution is 12.05. what is the concentration of [oh-] of the naoh solution? express your answer in standard not

ation
Chemistry
1 answer:
Vesnalui [34]3 years ago
4 0

Answer:

12.05,oei

Explanation:

ceftfetwf

You might be interested in
Why is salad dressing a solution?
umka21 [38]

Explanation:

A prime illustration of sour salad dressing formulas and suspension. Vinegar is also an acetic acid product which is dispersed in water, so we can't even see molecules in the oil. The removal throughout the liquid phase to make a solution.

5 0
2 years ago
Car wax mostly contains beeswax and carnauba wax. These large hydrocarbons are ideal to use because they _____ water.
hichkok12 [17]
These waxes are highly hydrophobic (repellant) of water, so the correct answer would be D) repel.

The wax coating put on the car creates a water repellant sheila that causes the water to bead up on the surface of the wax, rather than directly impacting the paint and surface of the body of the car. This prolongs the life and quality of the appearance of the car.
6 0
3 years ago
Read 2 more answers
The end point of a titration is defined as the volume of titrant added, while the equivalence point is the volume required for c
saw5 [17]

Answer:

...BY CHOOSING A PROPER INDICATOR, SCIENTISTS CAN MINIMIZE THE DIFFERENCE IN THESE TWO NUMBERS,...

Explanation:

A chemical indicator is an agent or substance which gives a visible sign especially a color change when introduced to a solution of base indicating the threshold of the concentration of acid used in the titration procedure. These indicators include methyl orange, methyl red, phenolpthalein. They give a color change when the concentration of an acid as reached a critical limit in order for the reaction to be stopped. These indicators are involved in acid-base titrations, oxidation- reduction reactions and so on. More accurate results of the volume of the required acid or base is obtained by the introduction of these indicators.

8 0
3 years ago
A gas within a piston–cylinder assembly undergoes an isothermal process at 400 K during which the change in entropy is −0.3 kJ/K
Karolina [17]

Answer:

W = -120 KJ

Explanation:

Since the piston–cylinder assembly undergoes an isothermal process, then the temperature is constant.

Thus; T1 = T2 = 400K

change in entropy; ΔS = −0.3 kJ/K

Formula for change in entropy is written as;

ΔS = Q/T

Where Q is amount of heat transferred.

Thus;

Q = ΔS × T

Q = -0.3 × 400

Q = -120 KJ

From the first law of thermodynamics, we can find the workdone from;

Q = ΔU + W

Where;

ΔU is Change in the internal energy

W = Work done

Now, since it's an ideal gas model, the change in internal energy is expressed as;

ΔU = m•C_v•ΔT

Where;

m is mass

C_v is heat capacity at constant volume

ΔT is change in temperature

Now, since it's an isothermal process where temperature is constant, then;

ΔT = T2 - T1 = 0

Thus;

ΔU = m•C_v•ΔT = 0

ΔU = 0

From earlier;

Q = ΔU + W

Thus;

-120 = 0+ W

W = -120 KJ

8 0
3 years ago
Which is the MOST precise measurement this cylinder gives for the volume of liquid it contains?
disa [49]

Hello! Before I answer to your question, please be sure to include a picture or else a report will be filed for your question would be commenced. You are lucky I have this for my homework tonight and I figured it out. Thank you:

The answer to your question would be as followed:

The most precise measurement for the cylinder you are mentioning is <em><u>B. 43.0mL</u></em>

6 0
3 years ago
Other questions:
  • What is the best example of electromagnetic energy in everyday life
    10·2 answers
  • five years ago, my grandfather was five times as old as I was. Three years from now, my grandfather will be three times as old a
    5·2 answers
  • What are the ionic bonds
    6·1 answer
  • Which of Dalton's postulates required revision?
    13·1 answer
  • Kate wrote the steps of the carbon cycle to describe how carbon is cycled through specific organisms. The steps are in random or
    11·2 answers
  • Adding heat and increasing concentration are meant to cause an increase in....?
    10·1 answer
  • Please help <br> Which of the statement is false
    14·1 answer
  • When a piece of metal is irradiated with UV radiation (λ = 162 nm), electrons are ejected with a kinetic energy of 3.54×10-19 J.
    14·1 answer
  • A comparison often made between solids and
    14·2 answers
  • Can someone help me i will give 100 points
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!