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
riadik2000 [5.3K]
2 years ago
9

Compound X has a molar mass of 266.64 g/mol and the following composition: aluminum 20.24% chlorine 79.76% Write the molecular f

ormula of X​
Chemistry
1 answer:
N76 [4]2 years ago
5 0

Answer:

Explanation:

Assume we have 100g of this substance. That means we would have 20.24g of Cl and 79.76g of Al. Now we can find how many moles of each we have:

\frac{79.76 \:g}{35.45 \: g/mol} = 2.25 mol of chlorine

\frac{20.24 \: g}{26.98 \: g/mol} = 0.750 mol of Al.

To form a integer ratio, do 2.25/0.75 = 2.99999 ~= 3.

So the ratio is essentially Al : Cl => 1 : 3. To the compound is possibly AlCl_3.

However, it says it has a molar mass of 266.64 g/mol, and since AlCl3 has a molar mass of 133.32, it must be Al_2Cl_6.

Actually this molecule isn't exactly AlCl3 (which is ionic). Al2Cl6 forms a banana bond where Cl acts as a hapto-2 ligand. But that's a bit advanced. All you need to know is X = Al2Cl6

You might be interested in
Which is an element?<br> A: H20<br> B: NaCl<br> C: Mg<br> D: CO
Talja [164]
The answer is option D "CO." Co also known as Cobalt is the 27th element on the periotic table. It was discovered in <span>1735, it's boiling point is 3200 k.</span>

Atomic mass: 58.9332
Protons: 27
Neutrons: 32
Electrons: 27

Hope this helps!

3 0
3 years ago
Read 2 more answers
Imagine you pour some hot soup into a bowl. You place your hands on the outside of the bowl and feel that the bowl is very warm.
yuradex [85]

Um because of the energy in the heat? XD idk

5 0
3 years ago
In the reaction shown above , the?
matrenka [14]

Answer:

I think option (d) is right answer

8 0
3 years ago
The temperature of a 100.0 g sample of water is raised from 30degrees celsius to 100.0 degrees celsius. How much energy is requi
worty [1.4K]

Answer:

29260J

Explanation:

Given parameters:

Mass of water sample  = 100g

Initial temperature = 30°C

Final temperature  = 100°C

Unknown:

Energy required for the temperature change = ?

Solution:

The amount of heat required for this temperature change can be derived from the expression below;

     H  = m c (ΔT)

H is the amount of heat energy

m is the mass

c is the specific heat capacity of water  = 4.18J/g°C

ΔT is the change in temperature

Now insert the parameters and solve;

          H  = 100 x 4.18 x (100 - 30)

          H  = 100 x 4.18 x 70 = 29260J

6 0
2 years ago
1. The effect of a catalyst on a chemical reaction is to
NemiM [27]

Answer:

the catalyst is for activation energy

6 0
3 years ago
Read 2 more answers
Other questions:
  • A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal a
    5·2 answers
  • What’s the molar mass of Mg(NO3)2
    6·1 answer
  • Why doesn’t a broken wineglass spontaneously fix itself, from a thermodynamic point of view?
    9·2 answers
  • Which one of these everyday products is a mineral A.)Plastic B.)salt C.)wood D.)paper​
    14·2 answers
  • Luster, conductivity, and malleability are physical properties of metals. What makes these properties different from chemical pr
    5·1 answer
  • In printed form, the Oxford English Dictionary __________________.
    7·1 answer
  • Help help help !!!!!!
    5·1 answer
  • This kind of bond is formed when an atom with low electronegativity donates electrons to an
    13·1 answer
  • Which of these elements is this group?
    8·1 answer
  • As shown
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!