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lara31 [8.8K]
3 years ago
15

Night-vision goggles allow you to see warm objects in a dark environment. Which type of electromagnetic wave do they detect?

Chemistry
1 answer:
Travka [436]3 years ago
6 0
The appropriate response is infrared waves. Indeed, even in the darkest of conditions, there are modest bits of light present. Some of this light might be the infrared light that isn't obvious to the stripped eye. Night vision goggles utilizing picture upgrade innovation gather all the accessible light, including infrared light, and open up it with the goal that you can without much of a stretch see what's happening oblivious.
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sample of substance X has a mass of 326.0 g releases 4325.8 cal when it freezes at its freezing point. If substance X has a mola
ELEN [110]
Number of moles ( substance x ):

1 mole --------- 58.45 g/mol
? mole --------- 326.0 g

326.0 x 1 / 58.45 => 5.577 moles

 heat of fusion:

hf = Cal / moles

hf = 4325.8 Cal / 5.577 moles

hf = 775.65 cal/mol

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5 0
3 years ago
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Think about a carbon atom that is released into the atmosphere from the burning of wood in a campfire. If it were to go through
viva [34]
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3 0
2 years ago
The K w for water at 0 ∘ C is 0.12 × 10 − 14 . Calculate the pH of a neutral aqueous solution at 0 ∘ C.
dusya [7]

Answer:

pH = 7.46

Explanation:

2H₂O  ⇄  H₃O⁺  .  OH⁻          Kw = [H₃O⁺] . [OH⁻]

[H₃O⁺] = [OH⁻]

√0.12×10⁻¹⁴ = [H₃O⁺] → 3.46×10⁻⁸  M

- log  [H₃O⁺] = pH

- log 3.46×10⁻⁸ = pH → 7.46

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3 years ago
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2 years ago
Use the van der Waals equation and the ideal gas equation to calculate the volume of 1.000 mol of neon at a pressure of 500.0 at
Ugo [173]

Use the van der Waals equation and the ideal gas equation to calculate the volume of 1.000 mol of neon at a pressure of 500.0 atm and a temperature of 355.0 K.

The Van der Waals equation, also known as the Van der Waals equation of state, is an equation of state used in chemistry and thermodynamics that extends the ideal gas law to take into account the effects of molecular interaction as well as the finite size of the molecules in a gas.

We may build a new equation that better reflects real gas behavior by modifying the ideal gas law to include corrections for interparticle attractions and particle volumes. The van der Waals equation can be used to determine a gas's properties under less-than-ideal circumstances.

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1 year ago
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