3 years ago

What mass of Al would be obtained from the complete reduction of 10.2 tonnes of Al2O3?

Chemistry

1 answer:

Fynjy0 [20]3 years ago

3 0

Answer:

5.4 tonnes.

Explanation:

The first step is to find the molar mass of Al2O3. Aluminum has a molar mass of about 27 and oxygen has a molar mass of about 16, so 2(27)+3(16)= 102g/mol=0.102kg/mol. 10200kg/0.102kg/mol=100,000 moles of Al2O3 in 10.2 tonnes. Multiplying this by the molar mass of the two aluminums, you get a total of 54*100,000=5400000g=5400kg=5.4 tonnes. Hope this helps!

You might be interested in

Which one of these statements is/are true: I. All redox reactions with positive emfs are spontaneous. II. If a redox reaction is

AleksAgata [21]

Answer:

yea all the answers are true

5 0

3 years ago

Use this equation for the next question:

MA_775_DIABLO [31]

The answers is: 375 moles NaOH

6 0

3 years ago

Which Scientists’ observations eventually led to the theory of continental drift?

Vitek1552 [10]

Alfred Wegener

Explanation:

Alfred Wegener in 1912, proposed the theory of continental drift from his careful studies of different land masses. From his observations, he suggested the following:

Some fossils of tropical plants were found in polar and temperate regions.
Fossils of mesosaurus were found in South America and South Africa now separated by the Atlantic ocean.
He fitted the continents into a giant land mass puzzles.
Coal beds in Europe were similar to those in United States.
Mountain chains in the edge of West Africa was similar to that of Eastern part of South America.

His theory lacked a mechanism which facilitated the plate movement.

Learn more:

Wegener brainly.com/question/5002949

#learnwithBrainly

8 0

4 years ago

How many silver (Ag) atoms are in a silver bar that is 20.0 g? A. 1.3 3 1027 Ag atoms B. 6.02 3 1023 Ag atoms C. 1.1 3 1023 Ag a

postnew [5]

C. 1.1 3 1023 Ag atoms

4 0

3 years ago

Read 2 more answers