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
bulgar [2K]
2 years ago
12

What is potential or potenz hydrogen?​

Chemistry
1 answer:
Mrrafil [7]2 years ago
7 0

Answer:

potential or pontenz Hydrogen is the negative logarithm of molar hydrogen ion concentration.

Explanation:

potential Hydrogen or potenz Hydrogen stands for pH

potenz is in german

{ \tt{pH =  -  log [H {}^{ + } ]}}

You might be interested in
Calculate the volume of 2.65 moles of CO2 gas at STP.
Harman [31]

Answer:

The volume is 59, 3 liters. See the explanation below, please

Explanation:

STP conditions (standard) correspond to 273K of temperature and 1 atm of pressure. These values are used and the volume is calculated, according to the formula:

PV = nRT

1 atm x V= 2, 65 moles x 0, 082 l atm/K mol x 272 K

V= 2, 65 moles x 0, 082 l atm/K mol x 272 K/1 atm = 59, 3 liters

6 0
3 years ago
56. When a person is not in touch with reality, they might have
amm1812
D: Schizophrenia. The individual that’s diagnoses with Schizophrenia tends to be disconnected with reality, leading to breakdowns in the world around them. A man sees a crowd of screaming, aggressive ghosts when it’s only a crowd of people waiting for a bus.
8 0
3 years ago
Calculate the heat change involved when 2.00 L of water is heated from 20.0/C to 99.7/C in
Pani-rosa [81]

Answer:

666,480 Joules or 669.48 kJ

Explanation:

We are given;

  • Volume of water as 2.0L or 2000 ml

but, density of water is 1 g/ml

  • Therefore, mass of water is 2000 g
  • Initial temperature as 20 °C
  • Final temperature as 99.7° C

Required to determine the heat change

We know that ;

Heat change = Mass × Temperature change × specific heat

In this case;

Specific heat of water is 4.2 J/g°C

Temperature change is 79.7 °C

Therefore;

Heat change = 2000 g × 79.7 °C × 4.2 J/g°C

                      = 669,480 Joules 0r 669.48 kJ

Thus, the heat change involved is 666,480 Joules or 669.48 kJ

5 0
3 years ago
Repeated trials and replication are the same thing. <br><br> - True<br> - False
Sauron [17]

Answer:

false

Explanation:

get a good grade :)

4 0
3 years ago
The thermodynamic quantity that expresses the extent of randomness in a system is ________. Question 14 options: entropy bond en
Bumek [7]

Answer:  entropy

Explanation:

Entropy is the measure of degree of randomness or disorder of the system.

Bond energy is the energy possessed by a substance by virtue of its bonding of electrons

Enthalpy is the amount of energy absorbed or released in a chemical reaction.

Internal energy is the energy possessed by a body by virtue of rotational, vibrational and transitional modes.

Heat flow is the phenomenon of thermal equilibrium in which heat flows from hotter body to colder body to maintain equilibrium temperature.

3 0
3 years ago
Other questions:
  • The number of _______________ in the nucleus determines an element's atomic number. this number defines the name of the element,
    6·1 answer
  • What is the active component of dynamite
    5·1 answer
  • The first disinfectant used by Joseph Lister was called carbolic acid. This substance now is known as phenol, C6H5OH (pKa = 9.90
    10·1 answer
  • Name one other organ system that would be affected if it had no marrow.Explain?
    11·1 answer
  • NEED HELP! what is a orbital . describe
    15·1 answer
  • After watching the squirrels at the local park for several days, Sergei asks his science teacher the following question: “do mor
    11·2 answers
  • HNO3 + Mg(OH)2 yield Mg(NO3)2 + H2O​
    11·1 answer
  • Please Help! 40 Points! PLEASE DON'T PUT INCORRECT ANSWERS TO USE MY POINTS!
    12·2 answers
  • 16. Chemists can synthesize new materials using
    5·1 answer
  • Which rule for assigning oxidation numbers IS correct?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!