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torisob [31]
3 years ago
7

CCC Patterns Changes in the state of matter (solid, liquid, gas) are the result of different energy levels at the molecular leve

l. Look at the graph of the energy required to go from water ice (solid) to water vapor (gas). Describe the energy of the water molecules for each state. The graph is on page 17.
Chemistry
1 answer:
ella [17]3 years ago
3 0

Answer:

Mercury venus and earth mars Jupiter satutn

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The vapor pressure of pure water at 25 °c is 23.8 torr. What is the vapor pressure (torr) of water above a solution prepared by
maxonik [38]

The vapour pressure of the solution is 23.4 torr.

Use <em>Raoult’s Law</em> to calculate the vapour pressure:  

<em>p</em>₁ = χ₁<em>p</em>₁°  

where  

χ₁ = the mole fraction of the solvent  

<em>p</em>₁ and <em>p</em>₁° are the vapour pressures of the solution and of the pure solvent  

The formula for vapour pressure lowering Δ<em>p</em> is  

Δ<em>p</em> = <em>p</em>₁° - <em>p</em>₁  

Δ<em>p</em> = <em>p</em>₁° - χ₁<em>p</em>₁° = p₁°(1 – χ₁) = χ₂<em>p</em>₁°  

where χ₂ is the mole fraction of the solute.  

<em>Step 1</em>. Calculate the <em>mole fraction of glucose </em>

<em>n</em>₂ = 18.0 g glu × (1 moL glu/180.0 g glu) = 0.1000 mol glu  

<em>n</em>₁ = 95.0 g H_2O × (1 mol H_2O/18.02 g H_2O) = 5.272 mol H_2O  

χ₂ = <em>n</em>₂/(<em>n</em>₁ + n₂) = 0.1000/(0.1000 + 5.272) = 0.1000/5.372 = 0.018 62  

<em>Step 2</em>. Calculate the <em>vapour pressure lowering</em>  

Δ<em>p</em> = χ₂<em>p</em>₁° = 0.018 62 × 23.8 torr = 0.4430 torr  

<em>Step 3</em>. Calculate the <em>vapour pressure</em>  

<em>p₁</em> = <em>p</em>₁° - Δ<em>p</em> = 23.8 torr – 0.4430 torr = 23.4 torr

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3 years ago
The particle picture is best described as...
mixas84 [53]

Answer:

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8 0
4 years ago
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ArbitrLikvidat [17]
2.56 is the answer !!!!
5 0
3 years ago
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Science plz help due soon 6th grade Major grade
pentagon [3]

Answer:

the answer is d.

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because the core is deepest then is the mantle and the lithpsphere is last .

I put a picture incase you need a visual example.

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3 years ago
When someone standing at one end of a large room opens a bottle of vinegar, it may take several minutes for a person at the othe
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Out of the following given choice:

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