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Lady bird [3.3K]
2 years ago
11

Ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Chemistry
2 answers:
Molodets [167]2 years ago
5 0

Answer:

Explanation:

What bro

zloy xaker [14]2 years ago
4 0
Answer what is going on

Explanation You are crazy
You might be interested in
A metallurgical firm wishes to dispose of 1200 gallons of waste sulfuric acid whose molarity is 1.05 M. Before disposal, it will
Reil [10]

Answer:

The balanced chemical equation for this process:

H_2SO_4(aq)+Ca(OH)_2(s)\rightarrow 2H_2O(l)+CaSO_4(aq)

$194.51 is the cost that the firm will incur from this use of slaked lime.

Explanation:

The balanced chemical equation for this process

H_2SO_4(aq)+Ca(OH)_2(s)\rightarrow 2H_2O(l)+CaSO_4(aq)

Moles of sulfuric acid = n

Volume of sulfuric acid disposed = V = 1200 gallons = 3.785 × 1200 L = 4,542 L

1 gallon = 3.785 Liter

Morality of the sulfuric acid = M = 1.05 m

Molarity(M)=\frac{n}{V(L)}

n=m\times V=1.05 M\times 4,542 L=4,769.1 mol

According to reaction, 1 mol of sulfuric acid reacts with 1 mole of calcium hydroxide.Then 4,769.1 moles of sulfuric acid will recat with ;

\frac{1}{1}\times 4,769.1 mol=4,769.1 mol of calcium hydroxide

Mass of 4,769.1 moles of calcium hydroxide:

4,769.1 mol  74 g/mol = 352,913.4 g

= \frac{352,913.4 }{453.6} pounds =778.03 pounds

(1 pound = 453.6 grams)

Cost of 1 pound of slaked lime  = $0.25

Cost of 778.03 pounds of slaked lime  = $0.25 × 778.03 = $194.51

$194.51 is the cost that the firm will incur from this use of slaked lime.

3 0
3 years ago
Give the reason why the empty crucible should be heated before starting the experiment
sdas [7]
To make sure no cracks are in the crucible and also to remove any moisture present in the crucible by the process of heating.
3 0
3 years ago
How are energy and mass connected during the formation of an atom?
ss7ja [257]
Energy is absorbed so, the mass is increased. 
energy is released so, the mass is increased
5 0
3 years ago
Read 2 more answers
12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water
Natali [406]

Answer:

12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water

The equation for this exothermic reaction is shown.

CH 30, - 200, 2H,0

The table shows the bond energies involved in the reaction

bond

bond energy

(kJ/moly

614

413

C-C

CHH

0 0

СО

495

799

O-H

467

What is the total energy change in this reaction?

A-954 kJ/mol

B-1010 kJ/mol

C-1313 kJ/mol

D-1359 kJ/mol

Explanation:

thats all you said

5 0
3 years ago
Will upvote
damaskus [11]
I believe the correct answer from the choices listed above is the third option. A ball falling through the air has <span>both potential energy because it still has a distance to move before it hits the ground and kinetic energy because it is moving. Hope this answers the question. Have a nice day.</span>
6 0
3 years ago
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