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
IgorC [24]
2 years ago
14

An acid (such as H2SO4) and a base (such as NaOH) are mixed together during a titration. The equivalence point is reached when _

____.
the pH reaches its maximum value

the number of moles of H+ ions equals the number of moles of OH– ions

the pH reaches its minimum value

the number of moles of acid equals the number of moles of base
Chemistry
2 answers:
dolphi86 [110]2 years ago
6 0
The answer is "<span>the number of moles of H+ ions equals the number of moles of OH– ions "</span>
raketka [301]2 years ago
4 0

Answer:

the number of moles of H+ ions equals the number of moles of OH– ions

Explanation:

The equivalence point, is the point at which the acid has completely reacted with the base.

In other words, the H+ ions from the acid have completed reacted with the OH- ions from the base, and in order to complete the reaction the moles of OH- must be equal to the number of moles of H+ in the inicial solution.

This is different to the moles of acid or base, because in this case we have two moles of H+ per mol of acid (H2SO4)

You might be interested in
When a 2 kg log is burned, it produces 0.5 kg of ash. Explain why the mass of the ash is less than the mass of the log. In other
Lostsunrise [7]

Answer:

my mass turned into gasses and other substances besides ash

Explanation:

burning a log products smoke and ash. the smoke takes some mass and the ash takes the rest.

3 0
2 years ago
Does this equation obey the law of conservation of mass: 2Z + 2HCI ➡️ ZnCI2 + H2​
MAXImum [283]

Answer:

2Zn + 2HCI ➡️ ZnCI2 + H2​

LHS of equation

Z = 2

H = 2

Cl = 2

RHS of equation

Zn = 1

Cl =2

H =2

as Zn is not equal in number of atoms on both sides of the equation, the equation does not obey the law of conservation of mass

Explanation:

the law of conservation mass states that the mass of an isolated system cannot be created nor destroyed by any chemical reaction or physical transformation. thus, there must be an equal number of atoms of an element present on both sides of the equation.

5 0
2 years ago
Please help , science tho. by the way i have to do 5
kap26 [50]

Answer:

850

Explanation:

It's between 840 and 860

8 0
2 years ago
If a molecule has an empirical formula of C2H2O and a molecular mass of 84.0 g/mol, what is the molecular formula?
lord [1]

Answer:

=C₄H₄O₂

Explanation:

Given the empirical formula of a molecule, the he the quotient of the molecular mas and and the empirical mass=constant.

84.0 g/mol/mass of(C₂H₂O)=constant

=84/(12×2+1×2×16)

=84/42

=2

Therefore, the molecular formula is (C₂H₂O)₂=C₄H₄O₂

6 0
3 years ago
Read 2 more answers
Lithium sulphate is used in some medicines and its presence in a medicine can be shown by two a combination of two tests a)expla
shtirl [24]

Answer:

A flame test could help by seeing what things it could catch on fire from or the things that could happen with acids etc. I would test the medicine by asking someone who has had it in their life, asking doctors or I would maybe use it myself maybe. (I don’t know about c, sooo sorry)

6 0
2 years ago
Other questions:
  • What factors affect the rate of dissolving a solid in a liquid? Explain...
    10·1 answer
  • What is the measurement 222.008 mm rounded off to four significant digits?
    5·2 answers
  • to show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure
    15·2 answers
  • What is the source of electrons for the reaction center of photosystem ii in photosynthesis?
    13·1 answer
  • Which of the following characteristics is common to both acids and bases? a. They produce ions when dissolved in water. b. They
    15·2 answers
  • Mary put a plant on a table in her room. After a few weeks, she saw that the stem of the plant was starting to bend toward the w
    9·1 answer
  • Write 657000 in scientific notation.
    9·1 answer
  • What is the final temperature, in degrees Celsius, of the gas in the bubble outside the volcano if the final volume of the bubbl
    14·1 answer
  • PLEASE HELPP FOR THE LIFE OF ME
    8·2 answers
  • During photosynthesis,blank energy is transformed into blank energy
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!