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
postnew [5]
2 years ago
10

How many atoms of nitrogen are present in 2.49 moles of nitrogen trifluoride ? atoms of nitrogen?

Chemistry
1 answer:
stepladder [879]2 years ago
6 0
<span>Nitrogen trifluoride - NF3.
1 mol NF3 contains 1 mol atoms of Nitrogen
2.49 mol NF3 contains 2.49 mol atoms of Nitrogen

1 mol   ----  6.02 *10²³ atoms
2.49 mol ----- 2.49*6.02*10²³ = 15.0*10²³ atoms of N</span>
You might be interested in
Why is Neon in the same group of the periodic table as Helium?
andriy [413]
Because they have a full outer shell and they are both noble gases...Because the outer shell has attained stable electronics configuration of octate rule this it is with noble gas as helium. Hope I helped!
3 0
3 years ago
Which would result in radioactive decay? Check all that apply
Gekata [30.6K]

6+2=115 and its good it took test



4 0
3 years ago
Read 2 more answers
Write the Ka expression for an aqueous solution of hydrofluoric acid: (Note that either the numerator or denominator may contain
damaskus [11]

Answer:

Ka = ( [H₃O⁺] . [F⁻] ) / [HF]

Explanation:

HF is a weak acid which in water, keeps this equilibrium

HF (aq)  +  H₂O (l)  ⇄  H₃O⁺ (aq)  +  F⁻ (aq)      Ka

2H₂O (l)  ⇄  H₃O⁺ (l)  +  OH⁻ (aq)   Kw

HF is the weak acid

F⁻ is the conjugate stron base

Let's make the expression for K

K = ( [H₃O⁺] . [F⁻] ) / [HF] . [H₂O]

K . [H₂O] = ( [H₃O⁺] . [F⁻] ) / [HF]

K . [H₂O] = Ka

Ka, the acid dissociation constant, includes Kwater.

4 0
2 years ago
Which choice BEST describes the motion of the car represented by the graph?
yanalaym [24]

the gas it has in it. it’s moving because of the gas

4 0
3 years ago
Magnetism is an example of a property of what?
Setler79 [48]

Answer:

A) behavior

Explanation:

6 0
3 years ago
Other questions:
  • The noble gases are located in which column of the periodic table?A. 1B. 6C. 9D. 18
    6·1 answer
  • The number of protons and neutrons combined is call​
    13·1 answer
  • During which era did the supercontinent Pangaea break up?
    9·2 answers
  • What element transmits heat easily
    11·1 answer
  • During photosynthesis carbon is converted into which chemical
    6·2 answers
  • Is "isotope" another name for an atom??
    12·2 answers
  • What is the silver concentration in a solution prepared by mixing 250
    5·1 answer
  • How many molecules is 7.22 mole H2O
    15·2 answers
  • What particle has a positive electrical charge and is found in the nucleus?
    5·2 answers
  • What is matter?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!