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JulijaS [17]
2 years ago
5

A gas with a volume of 1.4 L at 25ºC is heated to 50ºC. What is the new volume?

Chemistry
1 answer:
jeyben [28]2 years ago
5 0
You need to use the gas formula---> V1/ T1= T2/V2

V1= 1.4 L
T1 25 C= 298 K
T2= 50 C= 323 K
V2= ?

(1.4L) / (298) = V2 / 323K

V2= 1.5 L

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What would be the oxidation and reduction half reactions for this equation?
Sedbober [7]

Answer:

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5 0
3 years ago
Choose the solvent below that would show the greatest freezing point lowering when used to make a 0.20 m nonelectrolyte solution
tatiyna

Answer : Carbon tetrachloride, k_f=29.9^oC/m will show the greatest freezing point lowering.

Explanation :

For non-electrolyte solution, the formula used for lowering in freezing point is,

\Delta T_f=k_f\times m

where,

\Delta T_f = lowering in freezing point

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m = molality

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That means the higher the value of k_f, the higher will be the freezing point lowering.

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4 0
3 years ago
At 1.00 atmosphere pressure, a certain mass of a gas has a temperature of 100oC. What will be the temperature at 1.13 atmosphere
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Answer:  Final temperature of the gas will be 330 K.

Explanation:

Gay-Lussac's Law: This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T     (At constant volume and number of moles)

{P_1\times T_1}={P_2\times T_2}

where,

P_1 = initial pressure of gas   = 1.00 atm

P_2 = final pressure of gas  = 1.13 atm

T_1 = initial temperature of gas  = 100^0C=(100+273)K=373K K

T_2 = final temperature of gas  = ?

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T_2=330K

Therefore, the final temperature of the gas will be 330 K.

7 0
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