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3 years ago

WILL GIVE A BRAINIEST & 15 POINTS TO THE CORRECT ANSWER

Chemistry

2 answers:

Mrrafil [7]3 years ago

8 0

B.) absorb energy as it goes to the ground state

arsen [322]3 years ago

6 0

Answer:

Explanation:

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The heat capacity of water is 1cal degree'g1 (1 calorie per degree centigrade, per gram). You are given 1 gallon of water at 25

sdas [7]

Answer:

The heat needed to boil 1 gallon of water is 81,490.62 Joules.

Explanation:

$Q=mc\Delta T$

Where:

Q = heat absorbed or heat lost

c = specific heat of substance

m = Mass of the substance

ΔT = change in temperature of the substance

We have :

Volume of water = V = 1 gal = 4546.09 mL

Density of water , d= 1 g/mL

mass of water = m = d × V = 1g/mL × 4546.09 mL = 4546.09 g

Specific heat of water = c = 1 Cal/g°C

ΔT = 100°C - 25°C = 75 °C

9 (boiling pint of water is 100°C)

Heat absorbed by the water to make it boil:

$Q= 4546.09 g\times 1 Cal/g^oC\times 75^oC=340,956.75 Cal$

1 calorie = 4.184 J

$Q=\frac{340,956.75}{4.184} J = 81,490.62 J$

The heat needed to boil 1 gallon of water is 81,490.62 Joules.

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3 years ago

Why are little pieces of cardboard lighter than a whole piece of cardboard?

Ilia_Sergeevich [38]

I use small cardboard boxes for organizing drawers, etc,---also break them down and use it in the garden to kill weeds, and I add some to my compost. ... side to one edge that's somewhat shorter than the magazine, to enable one to remove one magazine without removing the whole box from the shelf.

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3 years ago

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Convert Aspartame "C14H18O5N2" from particles to moles

USPshnik [31]

Answer/Explanation :Molecules of Aspirin (C9H8O4), Acetaminophen (C8H9O2N), and Aspartame. (C14H18O5N2) [white spheres are hydrogen, black are carbon, red are oxygen, and convert between grams (mass), moles, and number of atoms .

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3 years ago

A scientist in London and a scientist in California both conducted independent investigations that produced similar results. Wha

VashaNatasha [74]

Then the data had to be the same.

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3 years ago

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Calculate the ph of the solution resulting from the addition of 85.0 ml of 0.35 m hcl to 30.0 ml of 0.40 m aniline (c6h5nh2). kb

stiv31 [10]

Answer:

pH = 0.81

Explanation:

HCl reacts with aniline, thus:

C₆H₅NH₂ + HCl → C₆H₅NH₃⁺ + Cl⁻

Moles of HCl are:

0.085L × (0.35mol HCl / L) = 0.02975mol HCl

Moles of aniline are:

0.030L × (0.40mol HCl / L) = 0.012mol aniline

Thus, after reaction, will remain:

0.02975mol - 0.012mol = 0.01775mol HCl

Moles of HCl in solution are equal to moles of H⁺, thus, moles of H⁺ are: 0.01775mol H⁺

As total volume is 85.0mL + 30.0mL = 115.0mL ≡ 0.115L

0.01775mol / 0.115L = 0.1543M

pH of solution = -log[H⁺]

pH = -log 0.1543M

pH = 0.81

3 0

3 years ago

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*WILL GIVE A BRAINIEST & 15 POINTS TO THE CORRECT ANSWER*

WILL GIVE A BRAINIEST & 15 POINTS TO THE CORRECT ANSWER