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
Anettt [7]
3 years ago
15

Water in contact with air is acidic, rather than neutral,

Chemistry
1 answer:
loris [4]3 years ago
3 0

Answer:

5.7

Explanation:

The pH can be calculated by:

pH = -log[H⁺]

Where [H⁺] is the concentration of hydrogen ions. The pH is a way to identify if the  solution is an acid or a base. When pH is equal to 7, the solution is neutral, when it is less than 7, it is acid, and when it is larger than 7, it's a base.

So, for the acid solution given, [H⁺] = 2.0x10⁻⁶ M

pH = -log(2.0x10⁻⁶)

pH = 5.7

You might be interested in
The light reactions of photosynthesis use _____ and produce _____. The light reactions of photosynthesis use _____ and produce _
SashulF [63]
<h2>Input = NADP^+, water and Output = NADPH + O_2</h2>

Explanation:

The light reactions of photosynthesis use water and produce Oxygen, NADPH.

The equation for photosynthesis :

6 CO_2 + 6 H_2O → C_6H_12O_6 + 6 O_2

The process of photosynthesis in two stages -

  • The first stage is called the light reaction in which the light energy from the sun is captured and converted into chemical energy stored in the form of ATP and NADPH
  • The second stage is the process of conversion of ATP molecules to sugar or glucose (the Calvin Cycle)

For a light reaction -

Net Input is of, NADP^+, Light, Water, ADP

Net Output is of, ATP, NADPH, O_2

8 0
3 years ago
1. Why is it necessary to equalize the pressure(i.e, have the water level the same in each tube) before taking a volume reading?
Anna11 [10]

Answer:

If you contact water with a gas at a certain temperature and (partial) pressure, the concentration of the gas in the water will reach an equilibrium ('saturation') according to Henry's law.

Explanation:

This means: if you increase the pressure (e.g. by keeping the vial closed), the CO2 concentration will increase. So it simply depends what concentration you need for your assay: 'CO2-saturated' water at low pressure or 'CO2-saturated' water at high pressure.

3 0
3 years ago
Select the correct structure that
Leni [432]

Answer:

Explanation:

its b

8 0
3 years ago
What do acid formulas have in common?
maks197457 [2]

the answer is H is the cation

Explanation :

The general formula of an acid is represented as,  in which 'H' is hydrogen cation and 'X' is a non-metal or a poly-atomic anion.

For example : etc.

All the acids produces hydrogen ion,  in an aqueous solution while the base produces hydroxide ion,  in an aqueous solution.

5 0
3 years ago
Read 2 more answers
If the element A have three protons in the nucleus. find the atomic number of the element A​
sweet-ann [11.9K]

Answer:

ATOMIC number of element A is 3

Explanation:

Atomic number is the same as number of protons of an element.

according to the periodic table, Lithium is the element with 3 protons in its neutral state and it's atomic number is 3.

3 0
3 years ago
Other questions:
  • Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave
    12·2 answers
  • NaCl<br> Quantity of element
    13·2 answers
  • Object A has a temperature of 287 Kelvin, object B has a temperature of 374 Kelvin. In what direction will thermal energy flow?
    12·2 answers
  • Which of the following equations is balanced for charge and mass?
    8·2 answers
  • Suppose that the root-mean-square velocity vrms of water molecules (molecular mass is equal to 18.0 g/mol) in a flame is found t
    6·1 answer
  • What are the raw materials/reactants and products of photosynthesis
    6·1 answer
  • Which statement regarding liquids is true? 1.can be converted to solids by adding energy in the form of heat 2.occupy a definite
    8·1 answer
  • A scientist finds that a sample of matter contains three types of atoms. The sample can be any of the following, except:
    14·1 answer
  • How adaptations in a bird's beak help them survive in their environment
    5·2 answers
  • Which phrase describes non-foliated rocks?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!