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
Fynjy0 [20]
2 years ago
8

Use the reaction given below to solve the problem that follows: Calculate the mass in grams of aluminum oxide produced by the re

action of 15.0 g of aluminum metal.
[ ]grams Al2O3

4 Al + 3 O2 --> 2 Al2O3

**Your answer should be written as XX.X
Chemistry
1 answer:
bearhunter [10]2 years ago
7 0

Answer:  28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}   

\text{Moles of} Al=\frac{15.0g}{27g/mol}=0.556moles

The balanced chemical equuation is:

4Al+3O_2\rightarrow 2Al_2O_3  

According to stoichiometry :

4 moles of Al produce == 2 moles of Al_2O_3

Thus 0.556 moles of Al will produce=\frac{2}{4}\times 0.556=0.278moles  of Al_2O_3

Mass of Al_2O_3=moles\times {\text {Molar mass}}=0.278moles\times 102g/mol=28.4g

Thus 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal.

You might be interested in
What is the best definition of solar radiation?(Giving brainliest)
topjm [15]

Answer:

energy from the sun that reaches earth

6 0
3 years ago
Read 2 more answers
The Charles Zeppelin, a fictional airship, is filled with 2.16 x 105 liters of hydrogen gas (H2). On the ground, the airship’s t
Dmitry [639]

Answer:

V2 = 3.11 x 105 liters

Explanation:

Initial Volume, V1 = 2.16 x 105 liters

Initial Temperature, T1 = 295 K

Final Temperature, T2 = 425 K

Final Volume, V2 = ?

These quantities are related by charle's law and the equation of the law is given as;

V1 / T1  =  V2 / T2

V2 = T2 * V1 / T1

V2 = 425 * 2.16 x 105 / 295

V2 = 3.11 x 105 liters

8 0
2 years ago
What is the definition of pendulum
Mama L [17]

Answer:

weight hung from a fixed point so that it can swing freely backward and forward.

5 0
2 years ago
Read 2 more answers
Using the periodic table, find the molecular mass of H2. H2 = g/mole
alekssr [168]
MH₂ = 2×mH = 2×1g = 2 g/mol
5 0
2 years ago
Explain your observations in term of how tempurature affects paritcle motion and how liquid changes to a solid
Rus_ich [418]

Answer:

See explanation

Explanation:

Temperature is defined as a measure of the average kinetic energy of the molecules of a body.

When a substance is heated, the kinetic energy of its molecules increases as the temperature increases; hence the particles of the substance moves faster with increasing temperature.

When heat is withdrawn from a liquid, the temperature decreases and the average kinetic energy of the molecules decreases. The molecules become less energetic hence the liquid changes into solid

4 0
3 years ago
Other questions:
  • Which of the following statements is true?
    10·2 answers
  • Fill in the blank:
    12·2 answers
  • Suppose now that you wanted to determine the density of a small crystal to confirm that it is sulfur. From the literature, you k
    14·1 answer
  • Suppose a large atom bonds with a small atom.  Will the properties of the new molecule be the same as the large atom, the small
    11·1 answer
  • Many of the stars we see in the night sky are called blue giants. They put out more energy and burn millions of times brighter t
    10·1 answer
  • A 50.00 mL sample of groundwater is titrated with 0.0800 M EDTA . If 10.90 mL of EDTA is required to titrate the 50.00 mL sample
    14·1 answer
  • Bases dissolve _____ and _____. 1. sugars 2. fats 3. oils or 4. proteins
    9·1 answer
  • Which exponential expression represents the numerical expression 112⋅112⋅112⋅112? ​(112)4​
    14·2 answers
  • Bromine has an atomic mass of 79.9 amu, but only has 2 naturally occurring isotopes, Bromine-79 and Bromine-81. If Bromine-80 do
    10·1 answer
  • Which statements describing chemical and nuclear reactions are true?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!