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
nikklg [1K]
3 years ago
14

What is the [OH^+] ina solution that has a pH=4.02

Chemistry
1 answer:
lana [24]3 years ago
4 0
Answer is: concentration of hydroxide ions [OH⁻] is 1.047·10⁻¹⁰ M.
pH = 4.02.
pH = -log[H⁺<span>].
</span>[H⁺] = 10∧(-pH).
[H⁺] = 10∧(-4.02).
[H⁺] = 9.54·10⁻⁵ M; equilibrium concentration of hydrogen cations.
[H⁺] · [OH⁻] = 1·10⁻¹⁴ M².
[OH⁻] = 1·10⁻¹⁴ M² ÷ 9.54·10⁻⁵ M.
[OH⁻] = 1.047·10⁻¹⁰ M; equilibriom concentration of hydroxide anions.
You might be interested in
What is the standard state of oxygen?
Simora [160]
O2 gas, where there are two Oxygen atoms which are covalently bonded together
4 0
3 years ago
Read 2 more answers
given that 32.0g sulphur contains 6.02×10^23 sulphur atoms,how many atoms are there in 2.70g of aluminum​
dangina [55]

Answer:

6.022 × 10²² atoms

Explanation:

Generally 1 mol of any element contains 6.02×10^23  atoms. The number 6.022 × 10²³ is known as Avogadro's number.

Mass of Aluminium = 2.70g

Molar mass = 27g/mol

Number of moles = Mass / Molar mass = 2.70 / 27 = 0.1 mol

1 mol =  6.022 × 10²³

0.1 mol = x

x = 6.022 × 10²³ * 0.1 = 6.022 × 10²² atoms

5 0
3 years ago
How much does REAL carbon fiber cost ? lets say as big as a piece of paper
coldgirl [10]

Answer:

Today, the average total production cost of “standard modulus” carbon fiber is in the range of $7-9 per pound.

8 0
2 years ago
What path does water take as it collects salt while flowing to the ocean?
vichka [17]

Answer:Ocean water is constantly moving, and not only in the form of waves and tides. Ocean currents flow like vast rivers, sweeping along predictable paths. Some ocean currents flow at the surface; others flow deep within water. Some currents flow for short distances; others cross entire ocean basins and even circle the globe.

By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places.

Explanation:

i got this off my chemistry sight.. your welcome

6 0
2 years ago
What are the moles of silver metal produced from 0.0999 mol of copper?
julia-pushkina [17]

Answer:

1234567i9812345678912121212121

6 0
3 years ago
Other questions:
  • Write a balanced equation for the formation of one mole of nacl(aq) from its elements
    7·1 answer
  • Concentrated sulfuric acid contains very little water, only 5.0% by mass. it has a density of 1.84g/ml. what is the molarity of
    11·1 answer
  • Which of the following is not a valid equation for describing the behavior of
    5·2 answers
  • How do catalysts affect energy of reactions
    10·2 answers
  • In a comparison of metals to nonmetals,metals tend to have
    10·1 answer
  • If the sum of the mass of the reactants is 12.5 what would be the sum of the products be? And explain how you know this
    6·1 answer
  • What is the oxidation state of nitrogen in NaO2?<br> 1) +1<br> 2)+2<br> 3)+3<br> 4)+4
    9·1 answer
  • Determine the point group change, if any, when GeCl4 is transformed into GeCl3F by a substitution process.
    14·1 answer
  • Atoms have a neutral charge because they?
    5·1 answer
  • 50 mL graduated cylinder contains 25.0 mL of water. A 142.5040 g piece of osmium is placed in the graduated cylinder and the wat
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!