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
bezimeni [28]
2 years ago
15

Define Atomic mass unit .​

Chemistry
2 answers:
Nastasia [14]2 years ago
8 0
A unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to ¹/₁₂ the mass of a single atom of the most abundant carbon isotope 12C. — called also dalton.
Andrei [34K]2 years ago
7 0

The dalton or unified atomic mass unit is a unit of mass widely used in physics and chemistry. It is defined as 1⁄12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest. The atomic mass constant, denoted mᵤ is defined identically, giving mᵤ = m/12 = 1 Da.

You might be interested in
What types of volcanic landforms occur at divergent plate boundaries
DochEvi [55]
In divergent boundaries deep ocean trenches form due to the 2 plates pulling apart. the plate in the middle gets stretched thinner and thinner as it submerges into the sea until enough pressure causes magma to erupt from it. when the magma erupts new sea floor is created
8 0
3 years ago
An industrial chemist studying bleaching and sterilizing prepares several hypochlorite buffers. Find the pH of 0.200 M HClO and
stellarik [79]

Answer:

The pH is 7.54

Explanation:

The Henderson - Hasselbalch equation states that for a buffer solution which consists of a weak acid and its conjugate base, the buffer pH is given by:

pH =pk_{a} +log(\frac{[conjugate base]}{[weakacid]})

pkₐ is for the acid

In this case, the buffer hypochlorous acid  HClO is a weak acid, and its conjugate base is the hypochlorite anion ClO⁻  is delivered to the solution via sodium hypochlorite NaClO .

NaCIO = 0.200 M

HCIO = 0.200 M

pkₐ = -log₁₀ kₐ = -log₁₀ (2.9 × 10⁻⁸) = 7.54

∴pH = =7.54 +log\frac{0.2}{0.2} = 7.54

7 0
3 years ago
What do electrons and neutrons have in common?
bearhunter [10]
█ Answer <span>█

Electrons and neutrons are both sub-atomic particles.  

</span><span>Hope that helps! ★ <span>If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span></span><span>

</span>
8 0
3 years ago
Read 2 more answers
What is spectrophotometry? How can this be useful in identifying drugs?
liq [111]

Answer:

What is spectrophotometry? It is an analytic method that it use substances light absorbance property

How can this be useful in identifying drugs? It possible compare spectra and identify problem substance

Explanation:

The way substances absorb light is unique and because of that it is possible to use spectrophotometry for substances identifying. the model spectra are measured in ideal conditions, so, it is difficult ensure the same conditions and to achieve identical spectra.

I hope I have been helpful

7 0
3 years ago
Compared to pure water, an aqueous solution of calcium chloride has what?
V125BC [204]
It has a higher boiling point and a lower freezing point
8 0
3 years ago
Other questions:
  • What volume will 50.2 grams of co2 (g) occupy at stp?
    8·1 answer
  • A closed loop through which current can flow is called a(n): ____________.
    11·1 answer
  • Select all of the following that are particles of atoms. protons neutrons electrons quarks Atoms are composed of particles calle
    13·2 answers
  • How many electrons are in a s-2 ion​
    5·1 answer
  • What is the molarity of a solution made by mixing 50.0 g of magnesium nitrate, Mg(NO3)2, in enough water to make 250. mL of solu
    5·1 answer
  • How is the concept of “heat” related to the law of conservation of energy?
    5·1 answer
  • HELP ASAP PLZ!!!! Balance the following equation using whole numbers. What is the coefficient for SiO2? Si12H26+O2⟶SiO2+H2O
    5·2 answers
  • Why are sound waves considered a type of mechanical energy?
    8·2 answers
  • If you are rationed to 32 gills of fresh water a day. how many liters is this?
    15·1 answer
  • You have dissolved 10 g sodium oxide in 200 ml water.calculate concentration of the solution
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!