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
liq [111]
2 years ago
15

What is the percent composition of aluminum in the ore bauxite (AI2O3)?

Chemistry
1 answer:
Schach [20]2 years ago
6 0

Answer:

Molar mass of Al2O3 = 101.961276 g/mol

This compound is also known as Aluminium Oxide.

Convert grams Al2O3 to moles or moles Al2O3 to grams

Molecular weight calculation:

26.981538*2 + 15.9994*3

Percent composition by element

Element Symbol Atomic Mass # of Atoms Mass Percent

Aluminium Al 26.981538 2 52.925%

Oxygen O 15.9994 3 47.075%

Explanation:

Percent composition by element

Element Symbol Mass Percent

Aluminium Al 52.925%

Oxygen O 47.075%

You might be interested in
Which substances will make a salt when combined? (2 points) Vinegar and antacids Soda and wine Soap and ammonia Fertilizer and d
SCORPION-xisa [38]

vinegar and antacids.

7 0
3 years ago
Read 2 more answers
Balanced equation for solid magnesium oxide
Y_Kistochka [10]

Answer:

Mg + O2 → MgO

Explanation:

3 0
3 years ago
If the temperature of a liquid-vapor system at equilibrium increases, the new equilibrium condition will
nikdorinn [45]
If the temperature of a liquid-vapor system at equilibrium increases, it will shift towards the vapor phase, assuming that the pressure remains equal. The concentration of vapor will also increase relative to the concentration of liquid in the system. Thus, the new equilibrium condition will have more vapor than liquid. 
6 0
3 years ago
. Chalk is made of CaCO​ 3​ . How many molecules are in 5 grams of chalk?
iren2701 [21]

Answer:

20.02 grams of chalk.

Explanation:

6 0
3 years ago
What is electronic configuration? What is the Law of Constant Composition?
Dovator [93]

Answer:

The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. This implies that any pure sample of a compound, no matter the source, will always consist of the same elements that are present in the same ratio by mass.

3 0
3 years ago
Other questions:
  • How does stem apply to science?<br><br> (i swear if yall just answer for points ima lose it)
    15·1 answer
  • What is the total number of atoms in this formula?<br> NaHCO3
    6·1 answer
  • Will mark Brainliest help please
    13·1 answer
  • Fluorine is a toxic, reactive gas. Witch representation (structural formula, electron dot structure, or three-dimensional model)
    8·1 answer
  • Plz help quick
    13·2 answers
  • Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) H 2O (l) Ca(OH) 2 (s) In a parti
    14·1 answer
  • 1) How many molecules are there in 985 mL of nitrogen at 0.0° C and 1.00 x 10-6 mm Hg?
    11·1 answer
  • Jessica wants to go for a run at the park. She usually runs about 8 kilometers per hour (km/h). She has about 1.5 hours to go fo
    10·1 answer
  • Gold has a density of 19.32 is this a chemical change or physical change
    10·1 answer
  • 1.Nuclear charge decreases as the atomic number increases.Immersive Reader
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!