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
natta225 [31]
3 years ago
13

Compound X has a molar mass of 316.25 g*mol^-1 and the following composition:

Chemistry
1 answer:
Leokris [45]3 years ago
8 0

Answer:

Compound X has a molar mass of 316.25 g*mol^-1 and the following composition:

element & mass %

phosphorus & 39.18%

sulfur & 60.82%

Write the molecular formula of X.

Explanation:

The given molecule of phosphorus and sulfur has molar mass --- 316.25 g.

Empirical formula calculation:                      

element:              phosphorus                       sulfur

co9mposition:      39.185%                            60.82%

divide with

atomic mass:          39.185/31.0 g/mol           60.82/32.0g/mol

                              =1.26mol                           1.90mol

smallest mole ratio:   1.26mol/1.26mol =1      1.90mol/1.26 mol =1.50

multiply with 2:          2                                         3

Hence, the empirical formula is:

P2S3.

Mass of empirical formula is:

158.0g/mol

Given, molecule has molar mass --- 316.25 g/mol

Hence, the ratio is:

316.25g/mol/158.0 =2

Hence, the molecular formula of the compound is :

2 x (P2S3)

=P_4S_6

You might be interested in
La lluvia acida es un fenomeno a nivel local o Regional?
Lesechka [4]

Answer:

Regional

Explanation:

4 0
3 years ago
Which type of acetylcholine receptor is present on postganglionic neurons
Sonja [21]

Answer:

Mescarinic and Nicotinic

Explanation:

Postganglionic fibers can be present in both sympathetic and parasympathetic divisions, their main difference resides in how in the sympathetic division the postganglionic fibers are adrenergic and use norepinephrine (noradrenalin) as a neurotransmitter, in the parasympathetic division, on the other hand, fibers are cholinergic and use acetylcholine as a neurotransmitter, the<em> postganglionic neurons of sweat glands release acetylcholine for the activation of muscarinic receptors, another kind of receptor for acetylcholine are nicotinic receptors </em>that act as transmembrane sodium/potassium channels, while muscarinic receptors need to act through intracellular proteins.

I hope you find this informatiou useful and interesting! Good luck!

4 0
3 years ago
The elements in a row of the the periodic table​
Aleks [24]

Answer:

<em><u>Rows in the periodic table are called periods</u></em>. As one moves from left to right in a given period, the chemical properties of the elements slowly change. <em><u>Columns in the periodic table are called groups</u></em>. Elements in a given group in the periodic table share many similar chemical and physical properties

Explanation:

5 0
3 years ago
Circle which of the following depend on the amount of matter present:
yan [13]
It is the boilimg point now aa
4 0
3 years ago
How do you do b,c, and d
Alika [10]
I have no idea I know it’s gonna be a number
8 0
3 years ago
Other questions:
  • Convert 575.1 mmHg to atm
    9·1 answer
  • A block of iron has the dimension of 3.00 cm x 3.00 cm x 3.00 cm. it's has a mass of 213 g. water has a density of 100 g/cm^3. W
    8·2 answers
  • Write the equation for the esterification of glycerol and three palmitic acids
    13·1 answer
  • Write the empirical formula for C6H6
    14·2 answers
  • What might you expect to observe from this double-displacement reaction: CoCl2(aq) + Na2SO4(aq) ---&gt; CoSO4 + 2NaCl?
    12·1 answer
  • you have a friend who is using a recipe for flat from american cookbook you notice that he set your over temperature at 175F° wh
    14·1 answer
  • Fire ants move in to a new environment with the lizards.what will most likely happen to the lizard population over the next seve
    5·1 answer
  • Which is associated with low humidity? *
    13·2 answers
  • Is water a mineral? what do you think
    10·1 answer
  • 54:63 ratio simplest form?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!