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Mariana [72]
3 years ago
14

How many grams of ethane gas (C2H6) are in a 12.7 liter sample at 1.6 atmospheres and 24°C? Show all work used to solve this pro

blem.
Chemistry
1 answer:
dexar [7]3 years ago
4 0

n = PV/RT

p = 1.6 atm

v = 12.7L

R = 0.0821

T = 24°C which is equivalent to 297.15 degrees k

n = (16 × 12.7) / (0.0821 × 297.15)

n = 20.32 / 24.39

n = 0.83 mol

C = 12.90

H = 1.0079

C2 = 12.010 × 2 = 24.02

H6 = 1.0079 × 6 = 6.0474

C2H6 = 30.0674

Ethane times n which is 30.0674 × 0.83mol

= 24.95 grams of C2H6. Which is Ethane.

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<u><em>See attachment for explanations.</em></u>

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1 year ago
In the reaction Ca + Cl2 → CaCl2, what is the mole ratio of chlorine to calcium chloride?
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Answer:

D. 1:1

Explanation:

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6 0
3 years ago
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Need Help!! <br><br> Explain the relationship between volume and temperature (Charles’ Law)
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2 years ago
Why can a liquid change to take the shape of its container but NOT expand to fill the container itself?
tiny-mole [99]

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Since molecules of a gas are held together by weak Vander waal forces, therefore, they expand to fill the container whereas molecules in a liquid are not expanded in a container like gases because of more force of attraction within molecules of liquids as compared to gases.

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4 0
3 years ago
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What is the minimum of acetic anhydride (102.1 g/mol) required to react completely with the 2.94 grams of salicylic acid? What v
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Answer:

a) the minimun of acetic anhydride required for the  reaction is 2.175 g (CH3CO)2O

b) V acetic anhydride = 2.010 mL

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      C6H4OHCOOH + (CH3CO)2O  ↔  C9H8O4 + C2H4O2

⇒ mol salicylic acid = 2.94 g C6H4OHCOOH * ( mol C6H4OHCOOH / 138.121 g ) = 0.0213 mol C6H4OHCOOH

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4 0
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