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
Dafna11 [192]
3 years ago
7

How do you test pH levels in bottled water?

Chemistry
1 answer:
dimaraw [331]3 years ago
8 0
You can use a universal indicator. The color of the universal indicator before contact with other chemicals is green, which is the pH of 7. We know that bottled water is pH 7. So when we put a few drops of universal indicator, the color would be green indicating neutral pH.
You might be interested in
A sample of flammable liquid is placed into an enclosed cylinder which is then fitted with a movable piston. Initially the cylin
polet [3.4K]

Answer:

12.09 L

Explanation:

Step 1: Convert 826.1 mmHg to atm

We will use the conversion factor 760 mmHg = 1 atm.

826.1 mmHg × 1 atm/760 mmHg = 1.087 atm

Step 2: Convert 427.8 J to L.atm

We will use the conversion factor 101.3 J = 1 L.atm.

427.8 J × 1 L.atm/101.3 J = 4.223 L.atm

Step 3: Calculate the change in the volume

Assuming the work done (w) is 4.223 L.atm against a pressure (P) of 1.087 atm, the change in the volume is:

w = P × ΔV

ΔV = w/P

ΔV = 4.223 L.atm/1.087 atm = 3.885 L

Step 4: Calculate the final volume

V₂ = V₁ + ΔV

V₂ = 8.20 L + 3.885 L = 12.09 L

5 0
2 years ago
In which state of the following compounds does nitrogen have the most positive oxidation state? group of answer choices no2 nano
Amiraneli [1.4K]

The compound nitrogen have most positive oxidation state is NO₂. The correct option is b.

<h3>What is oxidation state?</h3>

The total number of electrons gained or lost by an atom in order to form a chemical bond with another atom.

The charge on an ion is equal to the sum of the oxidation states of all the atoms in the ion. A substance's more electronegative elements are given a negative oxidation state.

A positive oxidation state is assigned to the less electronegative element.

Thus, the correct option is b, NO₂.

Learn more about oxidation state

brainly.com/question/11313964

#SPJ4

4 0
2 years ago
Pls do this and don't just do it for the points pls help me I need it
White raven [17]

Answer:

what do you want me to do my friend my best friend who is a dreamer

6 0
3 years ago
What would happen to a eukaryotic cell if all it mitochondria were destroyed
Snowcat [4.5K]
Without that cell it would die.
5 0
3 years ago
[06.04]On a potential energy diagram, the activation energy is greatest under which of the following conditions?
Nata [24]
The first one is the correct answer: <span>The potential energy of the products is greater than that of the reactants and the change in enthalpy is positive.<span> </span></span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • a carbohydrate is called an organic compound because it contains a) phosphorus b) carbon c) hydrogen d) oxygen
    6·1 answer
  • I need help so please help me
    12·1 answer
  • A car travels at 15 kilometers west in 10 minutes after reaching the destination the car travels back to the starting point agai
    9·1 answer
  • An atom of the element iron has an atomic number of 26 and an atomic mass number of 56. if it is neutral, how many protons, neut
    12·2 answers
  • In this experiment, you will measure mass and volume of various sport balls, both regularly shaped ball and irregularly shaped.
    9·2 answers
  • What is the amplitude of a wave?
    15·1 answer
  • Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2.
    8·1 answer
  • Kinetic energy CANNOT be converted into potential energy<br> True<br> False
    6·2 answers
  • Question 3 of 10
    15·1 answer
  • It requires 2,500 joules to raise a certain amount of water (c = 4.186 j/g°c) from 20.0°c to 60.0°c. what is the mass of the wat
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!