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
tatyana61 [14]
3 years ago
5

What is the percent composition of each of the elements in Al(OH) 3 ?

Chemistry
2 answers:
PilotLPTM [1.2K]3 years ago
4 0

Answer:

%Al = 34.6%

%0 = 61.5%

%H = 3.9%

Explanation:

Al(OH)3

Atomic mass of Aluminum Al = 27

Atomic mass of Oxygen O=16

Atomic mass of Hydrogen H=1

Molar mass of Al(OH)3 = 27 + (16*3) + (1*3)

Al(OH)3 = 27 + 48 + 3

Al(OH)3 = 78

Percentage composition;

Aluminum Al= (27/78) × 100

Aluminum Al=0.346 × 100 =34.6%

Oxygen O=(16*3/78) × 100

Oxygen O= 0.615 × 100 =61.5%

Hydrogen H= (1*3/78) × 100

Hydrogen H=0.039 × 100=3.9%

stellarik [79]3 years ago
3 0

Answer:

<em>Answer Below</em>

Explanation:

Percent composition by element

<u>Element </u>       <u>Symbol</u>  <u>Mass Percent</u>

Aluminium <u>Al</u>          34.590%

Hydrogen <u>H</u>          3.877%

Oxygen         <u>O</u>          61.533%

You might be interested in
What is the percent composition of (NH4)2S?
enyata [817]

(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%

3 0
2 years ago
Much of the general structure and physical properties of the interior of the earth are inferred from:
Zigmanuir [339]
The answer is b but I’m not sure but that’s what Iremember
6 0
3 years ago
Read 2 more answers
When the equation below is correctly balanced, what are the coefficients of Pb and H20, respectively? Pb + H2O + O2 =&gt; Pb(OH)
stepan [7]

Answer:

C

Explanation:

Pb + H2O + O2 => Pb(OH)2

Number of oxygen atom on left = 3

Number of oxygen atom on the right = 2

To balance number of oxygen

Change the coefficient of Pb and H2O to two each

2Pb + 2H2O + O2 => 2Pb(OH)2

The coefficient of Pb and H2O is 2,2

8 0
2 years ago
¿Cuál es la diferencia entre los compuestos alifáticos y ciclicos?
yan [13]

Answer:

huh

Explanation:

7 0
2 years ago
Read 2 more answers
El nivel simbólico representa tanto a lo macroscópico como a lo nanoscópico.
alexira [117]

Answer:

verdadero

Explanation:

5 0
2 years ago
Other questions:
  • At a constant pressure, what temperature will be reached if a gas at 300 K with a volume of 0.1 liters is increased to 0.2 liter
    6·1 answer
  • Which element would most likely have a positive electron affinity
    6·1 answer
  • What is the molarity of a solution prepared by dissolving 12.0 g of sodium acetate, nac2h3o2, in water and diluting it to 250.0
    15·1 answer
  • Photochromic lenses contain Group of answer choices both AgCl and CuCl embedded in the glass. only AgCl embedded in the glass. n
    9·1 answer
  • Given that the density of Hg(l) at 0°C is about 14 g mL-­1, which of the following is closest to the volume of one mole of Hg(l)
    8·1 answer
  • There are 81 amino acid residues in the precursor molecule of bovine insulin. What is the least number of bases that must be in
    6·2 answers
  • Find the percentage compositions<br> CaCl2<br> Ca:<br> CI:
    7·1 answer
  • The balmer thermometer uses the atomic transitions of what element to measure the temperature of stars?
    13·1 answer
  • The breakdown of proteins produces:
    8·1 answer
  • PLEASE HELP MEEE!!!!!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!