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Daniel [21]
3 years ago
14

The only large land mass(es) not part of a sovereign state is/are

Chemistry
1 answer:
Studentka2010 [4]3 years ago
6 0
<span>Antarctica is the large land mass that does not part of a sovereign state. Under the Antarctic Treaty of 1959 Antarctica is the first continent to move beyond the modern doctrine of sovereign territorial states: “No acts or activities taking place while the present Treaty is in force”, states Article IV, “shall constitute a basis for asserting, supporting or denying a claim to territorial.</span>
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How many moles of helium are needed to fill a balloon to a volume of 5.3 L at 22 ℃ and 632 mmHg?
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Answer:

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Explanation:

Applying,

PV = nRT................... Equation 1

Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = temperature.

make n the subject of the equation

n = PV/RT............... Equation 2

Given: V = 5.3 L, T = 22 °C = (22+272) K = 295 K, P = 632 mmHg = (0.00131579×632) = 0.8316 atm,  R = 0.083 L.atm/K.mol

Substitute these values into equation 2

n = (0.8316×5.3)/(0.083×295)

n = 0.18 moles

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