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
Aleonysh [2.5K]
3 years ago
9

How many moles are in 1.5 x 10^20 molecules of NH3?

Chemistry
1 answer:
Keith_Richards [23]3 years ago
5 0
<span>Because the question is asking moles of NH3, the compound, any subscripts are irrelevant. It only wants to know how many moles of NH3 molecules, not individual atoms.

Therefore, we can simply convert to moles. 1.5x10^23/6.022x10^23 = .249 moles of NH3.

(If it were to ask moles of Hydrogen, for example, you would multiply the answer by 3, because there are 3 atoms of Hydrogen per one molecule of NH3. But this only asks for moles of the entire compound).  

hope you have a great day! :)
</span>
You might be interested in
Ignore the answer I have selected but please help!! Ty in advance, also please explain
weeeeeb [17]

Answer:

Iodine is most reactive because it is very close to having a "full shell" which is 8 electrons so they are "eager" to gain the last electron to became balanced, so that makes it the most reactive. Hope that helps:)

Explanation:

4 0
2 years ago
Menstruation occurs on a ______ interval from puberty until menopause
dmitriy555 [2]
D. One Month Interval
8 0
2 years ago
Atomic radius of bromine
Keith_Richards [23]

Answer: The answer is 185 Pm

4 0
2 years ago
Read 2 more answers
Which of the follow describes what happpens to the kinetic energy of water when it changes from the solid state to a liquid stat
Anestetic [448]

Answer:

Kinetic energy increases.

Explanation:

In a solid, molecules do not have much room to move. They are very slow moving, which means that kinetic energy is low. In a liquid, molecules have more room to move. They are able to move faster than a solid, which means that kinetic energy is low.

From greatest to lowest kinetic energy:

gas, liquid, solid

7 0
3 years ago
What is the name of this compound?
Mashcka [7]

Answer:

B. ethylamine.

Explanation:

  • Since the compound contains NH₂, it is an amine compound.
  • The alkyl group C₂H₅- contains 2 C atoms (ethyl group).

<em>So, the compound is ethylamine.</em>

<em />

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following releases the greatest amount of energy as it proceeds? Assume the same mass of starting material is used
    13·1 answer
  • Find the density of a sample that has a volume of 36.5L and a mass of 10.0kg
    6·1 answer
  • 13. Fe + Cu(NO3)2 -&gt; Fe(NO3)2 + Cu<br> Is what type of reaction
    9·1 answer
  • What are three a ways orchids attract insects to spread their flower pollen
    6·1 answer
  • 2. Does sexual or asexual reproduction produces MORE diversity in offspring?​
    8·1 answer
  • If a gas has a molecular mass of 44.0, the volume of 88.0 grams of the gas at STP would be ..
    14·1 answer
  • If you move at 50 meters in 10 seconds, what is your speed?
    14·1 answer
  • Draw an electron
    13·1 answer
  • Calculate the pH for the following solutions and indicate whether each solution is acidic or basic.
    10·2 answers
  • What is the mass in grams of Al that were reacted with excess HCl if 2.12 L of hydrogen gas were collected at STP in the followi
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!