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zhuklara [117]
3 years ago
10

6. (10 Points) The volume of a helium balloon in Los Angeles is 14.0 L The

Chemistry
1 answer:
yan [13]3 years ago
5 0

Answer:

V₂ = 15.27 L

Explanation:

Given data:

Initial volume = 14.0 L

Initial temperature = 25°C (25 + 273.15 = 298.15 k)

Final temperature = 52°C = (52+273.15 = 325.15 k)

Final volume = ?

Solution:

Charles Law:

" The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure "

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 14.0 L × 325.15 K / 298.15 k

V₂ = 4552.1 L.K / 298.15 K

V₂ = 15.27 L

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How many copper(I) ions (atoms of Cu​ 1+ ) are in a sample of copper(I) sulfate that weighs 35.4 grams?
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Answer:

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2 years ago
Select the correct answer.
Serjik [45]

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8 0
3 years ago
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What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 54?
Anika [276]

Answer:

1. Caffeine, C₈H₁₀N₄O₂

Amount = 1.00/194 = 0.00515 moles

2. Ethanol, C₂H₅OH

Amount = 0.0217 moles

3. Dry Ice, CO₂

amount = 0.0227 moles

<em>Note: The question is incomplete. The compound are as follows:</em>

<em> 1. Caffeine, C₈H₁₀N₄O₂;</em>

<em>2. Ethanol, C₂H₅OH;</em>

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Explanation:

Amount (moles) = mass in grams /molar mass in grams per mole

1. Caffeine, C₈H₁₀N₄O₂

molar mass of caffeine = 194 g/mol

Amount = 1.00 g/194 g/mol = 0.00515 moles

2. Ethanol, C₂H₅OH

molar mass of ethanol = 46 g/mol

Amount = 1.00 g/46 g/mol = 0.0217 moles

3. Dry Ice, CO₂

molar mass of dry ice = 44 g/mol

amount = 1.00 g/44 g/mol = 0.0227 moles

5 0
2 years ago
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kobusy [5.1K]

Answer:

Constellations Changing Positions!!!!       :D  <----(smiley face)

Explanation:

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