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
AURORKA [14]
3 years ago
6

Determine the number of molecules present in 5.60 mol of nitrogen dioxide, the number of atoms of oxygen, and the number of nitr

ogen atoms.
Please explain how.
Chemistry
1 answer:
vaieri [72.5K]3 years ago
5 0
Nitrogen dioxide is NO2 (where the number 2 is a subscript that indicates the number of atoms in one molecule).

Use Avogadro's number: 1 mol of molecules = 6.022 * 10^ 23 molecules.

So, in 5.6 mol of NO2 there are 5,6 mol * 6.022 * 10^23 molecules / mol = 33.72 * 10^23 molecules = 3.372 * 10^24 molecules of NO2.

There are the same number of N atoms (because there is 1 atom of N in 1 molecule) and there are the double of O atoms (becasue there are 2 atoms of O in 1 molecule) => 3.372 * 10 ^24 atomsof N and 6.744 atoms of O.

Answer: 3.372 * 10^24 molecules of NO2, 3.372 * 10^24 atoms of N and 6.744 atoms of O.
You might be interested in
(6.93 x 10) (2.0 x 10^-4) =
lora16 [44]

1.386×10^-2 or 0.01386

5 0
3 years ago
A 100.0 lb skier moves at 40.00miles/hour. Calc her kinetic energy.
Pepsi [2]

answer: its 7290 joules.

explanations: the first procedure is to convert 1 pound to kilogram. 1 kg = 2.205 hence given 100 lb so we cross multiply. 1 kg * 100 = 2.205 * x

hence x= 45 kg. let's convert 1 mile per hour = 0.45 metre per second we cross multiply by 40 mile per hour. x= 40 * 0.45= 18 m/s.

KE= 1/2 * 45 * (18)^2

= 1/2 * 45 * 14580

= 7290joules

5 0
3 years ago
When the population of organisms in an ecosystem is in balance, we consider the ecosystem to be: A. The ecosystem is in successi
krek1111 [17]
The answer is B. Equilibrium means a state in which opposing forces or influences are balanced.
7 0
3 years ago
What is the chemical reaction that occurs during photosynthesis ​
vfiekz [6]

Answer:

endothermic change occurs

Explanation:

photosynthesis, is an endothermic reaction in which energy is absorbed from the surrounding.

hope this helps

8 0
3 years ago
Read 2 more answers
If 4.80 mol Ca mixed with 2 mol N2, which is the limiting reactant? 3Ca (s) + N2 (g) Ca3N2 (s)
Andreyy89
Nitrogen in the limiting reactant x
4 0
2 years ago
Other questions:
  • At its triple point, water can
    8·2 answers
  • Elements on the periodic table are organized by what?
    12·2 answers
  • Osmium is one of the densest elements known, what is its density if 2.72 g has a volume of 0.121 cm3?
    15·2 answers
  • Most scientific questions are based on opinions. hypotheses. observations. experimental dat
    14·1 answer
  • Which separation method would be most successful in separating the components of a homogeneous mixture?
    7·2 answers
  • BEST ANSWER = BRAINIEST !1.What will the weather most likely be like the day a cold front arrives?
    15·1 answer
  • If I add 4 spoons of sugar in one cup of water and add 2 spoons of sugar in another cup of water which one has more density?
    10·1 answer
  • Someone please helpppp!!!!!!Question 7
    12·1 answer
  • A3.00 mol sample of CO2 (g) is in a rigid 6.00 L container at 400.°C.
    7·1 answer
  • Explain how movements along faults generate earthquakes<br><br><br>​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!