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
ankoles [38]
2 years ago
5

What is the percent composition of (NH4)2S?

Chemistry
1 answer:
enyata [817]2 years ago
3 0

(NH₄)₂S

%N=  41.18%

%H =11.76%

%S=47.06%

Mg(NO₃)₂

%Mg=32.43%

%N=18.92%

%O=(64.86%

<h3>Further explanation</h3>

Given

(NH₄)₂S

Mg(NO₃)₂

Required

The percent composition

Solution

(NH₄)₂S MW=68 g/mol

%N=2. Ar N  / MW (NH₄)₂S x 100%

%N= (2.14/68) x 100% = 41.18%

%H =(8.1/68) x 100%=11.76%

%S=(32/68)x 100%=47.06%

Mg(NO₃)₂ MW=148 g/mol

%Mg=(2.24/148)x100%=32.43%

%N=(2.14/148)x100%=18.92%

%O=(6.16/148)x100%=64.86%

You might be interested in
Draw the Lewis Structure for NI3.
monitta

Explanation:

Nitrogen triiodide (NI₃)

Valence electrons of nitrogen = 5

Valence electrons of iodine = 7

The total number of the valence electrons  = 5 + 3(7) = 26

The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So,  

The Lewis structure is shown in image below.

Nitrogen posses one lone pair and thus the geometry is pyramidal.

4 0
3 years ago
IF 500 mL of air contains 2.50x10^22 particles (atoms and molecules). how much particles do you inhale in one day if you breath
vaieri [72.5K]

Answer:

I think it is 0.00192

Explanation:

28.795705

15000

=0.00192

8 0
2 years ago
What does the Periodic Table show?
Mamont248 [21]
Atomic number
atomic mass
group|family
periods
and element symbols
8 0
3 years ago
Explain why atoms move at different speeds depending on whether they are in liquids or solids.
Ad libitum [116K]
<span>Atoms move at different speeds depending on whether they are in liquids or solids </span><span>because the atoms or particles in solids are closely bonded while they are loosely bonded in liquids.
</span><span>
</span><span>
</span><span>The attractive forces between the particles are so high that they remain in fixed positions. The particles, then, cannot slip over the neighbors particles. They can only vibrate. That is why solids have definite form and volume.</span><span />

<span>That the particles in liquids are loosely bonded means that the attractive forces are less compared with solids. Then the partilces can move and pass each other. They are not in fixed arrangements any more. Yet the particles are attracted to each other, so they have definite volume, although they take the form of the vessel, and they can flow.
</span>

4 0
3 years ago
In the combined gas law, if the volume is decreased, what happens to the temperature if pressure remains constant?
Flura [38]

The correct answer is A. In the combined gas law, if the volume is decreased and the pressure is constant, then the temperature decreases.

 <span>P1V1/ T1 = P2V2 / T2</span>

 <span>Assume the volume decrease by half; V2 = V1/2</span>

 <span>P1V1/ T1 = P2V1 /2 T2</span>

 <span>Cancelling terms,</span>

 <span>1/T1 = 1/2 T2</span>

T2 = T1/2

 <span>Thus, the temperature decreased.</span>

8 0
3 years ago
Other questions:
  • Round the following numbers to 3 significant figures.
    10·1 answer
  • How long does it take a snail travel a distance of 3ft at 0.1ft/sec
    13·2 answers
  • A joule, which is a unit of work, is equal to Blank Space __________.
    12·2 answers
  • Which of the following solutions can be used to neutralize HNO3?
    14·1 answer
  • 3 complete paragraphs on Static Electricity
    8·1 answer
  • Teresa has taken three tests worth 100 points each. Her scores are 85, 93, and 88. She has one test left to take.
    9·1 answer
  • Can someone plz help me ? :(
    11·1 answer
  • When an electron moves from one energy level to another, if the transition is to a _______ energy level, energy is absorbed, and
    12·1 answer
  • Boyle's Law
    14·2 answers
  • What volume will 5.6 moles of sulfur hexafluoride
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!