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Lady_Fox [76]
3 years ago
12

A balloon with a volume of 5.0 L is filled with a gas at 760 tore. If the pressure is reduced to 389 torr without a change in te

mperature. What will be the volume of the balloon?
Chemistry
1 answer:
icang [17]3 years ago
8 0

Answer:

V_2=9.97L

Explanation:

Hello,

In this case, we can apply the Boyle's law in order to understand the pressure-volume relationship as an inversely proportional relationship:

P_1V_1=P_2V_2

Thus, we can solve for the resulting volume at the second state as follows:

V_2=\frac{P_1V_1}{P_2}=\frac{5.0L*760torr}{389tor}  \\\\V_2=9.97L

Best regards.

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A 0.1 gram sample of an unknown liquid is vaporized completely at 70 degrees C to fill a 750mL flask. The pressure is 0.05951atm
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Answer:

The molar mass of the liquid 62.89 g/mol

Explanation:

Step 1: Data given

Mass of the sample = 0.1 grams

Temperature = 70°C

Volume = 750 mL

Pressure = 0.05951 atm

Step 2: Calculate the number of moles

p*V = n*R*T

n = (p*V)/(R*T)

⇒ with n = the number of moles gas = TO BE DETERMINED

⇒ with p = The pressure = 0.05951 atm

⇒ with V = The volume of the flask = 750 mL = 0.750 L

⇒ with R = The gasconstant = 0.08206 L*atm/K*mol

⇒with T = the temperature = 70 °C = 343 Kelvin

n = (0.05951 *0.750)/(0.08206*343)

n = 0.00159 moles

Step 3: Calculate molar mass

Molar mass = mass / moles

Molar mass =0.1 gram /  0.00159 moles

Molar mass = 62.89 g/mol

The molar mass of the liquid 62.89 g/mol

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. how many lone pairs of electrons are present in the lewis structure of calcium sulfide?
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Explanation:
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Ca²⁺ is formed as,

                                   Ca    →    Ca²⁺  +  2 e⁻

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