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Ber [7]
3 years ago
6

Calculate the weighted average

Chemistry
1 answer:
padilas [110]3 years ago
3 0
Of what?
Attach a link or pic 
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A certain sample of coal contains 1.60 percent sulfur by mass. when the coal is burned, the sulfur is converted to sulfur dioxid
alina1380 [7]
<span>1.40 x 10^5 kilograms of calcium oxide The reaction looks like SO2 + CaO => CaSO3 First, determine the mass of sulfur in the coal 5.00 x 10^6 * 1.60 x 10^-2 = 8.00 x 10^4 Now lookup the atomic weights of Sulfur, Calcium, and Oxygen. Sulfur = 32.065 Calcium = 40.078 Oxygen = 15.999 Calculate the molar mass of CaO CaO = 40.078 + 15.999 = 56.077 Since 1 atom of sulfur makes 1 atom of sulfur dioxide, we don't need the molar mass of sulfur dioxide. We merely need the number of moles of sulfur we're burning. divide the mass of sulfur by the atomic weight. 8.00 x 10^4 / 32.065 = 2.49 x 10^3 moles Since 1 molecule of sulfur dioxide is reacted with 1 molecule of calcium oxide, just multiply the number of moles needed by the molar mass 2.49 x 10^3 * 56.077 = 1.40 x 10^5 So you need to use 1.40 x 10^5 kilograms of calcium oxide per day to treat the sulfur dioxide generated by burning 5.00 x 10^6 kilograms of coal with 1.60% sulfur.</span>
5 0
3 years ago
Why is it considered necessary to neutralize the industrial waste before allowing it to flow into the water bodies?
Aleonysh [2.5K]

Answer:

Some of the things, are extremly toxic to life

like nuculear power plants, create nuculear waste

you need to let it sit there for several years

unless if you want to get sued by the Enviromental protection agency

Explanation:

4 0
2 years ago
What does it mean when a reaction is spontaneous apex?
natima [27]
A reaction that is spontaneous means that it can produce products without the supply of energy. The total energy from the reactants reached the activation energy that allow the reaction proceed. An example of this is the decay of a diamond into graphite occuring readily.
7 0
3 years ago
HURRY I WILL GIVE YOU BRAINLIEST
Amiraneli [1.4K]

dim? im not so fluent in this but i did research yesterday

6 0
3 years ago
What are household items that are made up from carbon?
sweet-ann [11.9K]
you’re made partly of carbon so is clothes, furniture, plastics, yr household machines
4 0
2 years ago
Read 2 more answers
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