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
devlian [24]
3 years ago
7

What is the empirical formula for a compound that contains 10.89% magnesium 31.77% chloride and 57.34% oxygen

Chemistry
1 answer:
Blizzard [7]3 years ago
4 0

Answer: Mg_{1}Cl_{2}O_{8}

Explanation:

If percentage are given then we are taking total mass is 100 grams.So, the mass of each element is equal to the percentage given.

Mass of Mg = 10.89 g

Mass of Cl = 31.77 g

Mass of O = 57.34 g

Step 1 : convert given masses into moles.

Moles of Mg=\frac {\text{ given mass of Mg}}{\text{ molar mass of Mg}}= \frac {10.89g}{24g/mole}=0.45moles

Moles of Cl = \frac {\text{ given mass of Cl}}{\text{ molar mass of Cl}}= \frac {31.77g}{35.5g/mole}=0.89moles

Moles of O =\frac {\text{ given mass of O}}{\text{ molar mass of O}}=\frac {57.34g}{16g/mole}=3.58moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For Mg = \frac {0.45}{0.45}=1

For Cl = \frac {0.89}{0.45}=2

For O= \frac {3.58}{0.45}=8

The ratio of Mg :Cl : O= 1 : 2 : 8

Hence the empirical formula is Mg_{1}Cl_{2}O_{8}

You might be interested in
which industrial city would have fewer air pollution incidents related to temperature inversions one on the great plains or one
egoroff_w [7]
I'm not positive, but I believe it would be one near the Rocky Mountains.
3 0
3 years ago
Define saturated and unsaturated fats​
Sphinxa [80]

Answer:

<h3><u>Saturated and unsaturated</u>:-</h3>

Are a form of fat in which all or most of the fatty acid chains are single bonds. Glycerol and fatty acids are the two types of smaller molecules that make up fat.

<h3><u>Saturated fat is found in:</u></h3>
  • cakes
  • sausages
  • cheese
  • butter
<h3><u>Examples of unsaturated fats:- </u></h3>
  • Olive
  • Nuts(almonds, hazelnuts)
  • Seeds(pumpkin and sesame seeds)

hope it helps...

6 0
3 years ago
How does fabric softener affect the flammability of different fabrics?
Karolina [17]
<span>Research shows that fabric softeners decrease flame resistance. The flame resistance of a fabric can be increased in a variety of ways. Most often, the fabric is treated with special flame resistant chemicals. Synthetic fabrics, such as polyester, are naturally flame resistant. These fabrics have a property called thermoplasticity, where the fabric naturally melts and shrinks when exposed to flame. This prevents these fabrics from igniting and burning as easily as other fabrics. Basic properties of a fabric, such as porosity, can also influence flame resistance. Larger pores allow for oxygen to be more present in the fabric, making it more flammable.</span>
5 0
3 years ago
Substance X has a fixed volume, and the attraction between its particles is strong. Substance Y has widely spread out particles
enot [183]
Among the choices given, the correct answer is the first option. Substance X most likely is a crystal, and substance Y most likely is a liquid. Substance X having a fixed volume describes a crystal because crystals occupy a certain volume. Substance Y is a liquid because liquids can still be compressed further in order to attain a more packed <span>structure.</span>
8 0
3 years ago
Read 2 more answers
Does bacteria need water to live
Aleks [24]
No. bacteria only needs food to live along with other special needs depending on the type of bacteria
6 0
3 years ago
Other questions:
  • Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it
    6·1 answer
  • When mowing the lawn what greenhouse gas are you generating
    7·1 answer
  • To begin the experiment, 1.11g of methane CH4 is burned in a bomb calorimeter containing 1000 grams of water. The initial temper
    5·1 answer
  • A balloon is filled with helium at sea level. The volume was measured to be 3.1 liters at a pressure of 0.97 atmosphere. If the
    7·2 answers
  • What element has the same valence electrons as carbon A) N B) AI C) Si or D) Be
    9·1 answer
  • A light source of wavelength, l, illuminates a metal and ejects photoelectrons with a maximum kinetic energy of 1 eV. A second l
    10·1 answer
  • During the reaction of 2-methyl-2-butanol with the nucleophile-solvent mixture two layers are formed after shaking the reaction
    14·1 answer
  • Plsss guys hurry up it would mean a lot!!​
    13·1 answer
  • How many valence electrons does this atom have ? 1s^2 2s^2 2p^6 3s^2
    14·1 answer
  • Which of these materials is a substance?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!