3 years ago

If a gas has an initial pressure of 101kPa and a volume of 10L, then it expands to a volume of

Chemistry

1 answer:

maxonik [38]3 years ago

7 0

Answer:

50.5

Explanation:

pressure is inversely proportional to pressure

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State of matter

Nina [5.8K]

Answer:

H₂

Explanation:

To solve this question we must find, as first, find the molar mass of the homonuclear diatomic gas using Graham's law. With the molar mass we can identify this gas

Graham's law:

$\frac{V_a}{V_b} =\sqrt{\frac{m_B}{m_A} }$

Where V is the speed of the gases and m the molar mass of those:

As Va is 3.98 times Vb (And mB is molar mass of oxygen gas = 32g/mol)

$3.98 =\sqrt{\frac{32g/mol}{m_A} }$

15.84 = 32g/mol / mA

mA = 2.02g/mol

As is a homonuclear diatomic gas, the molar mass of the atom is 1.01g/mol. Thus, the gas is:

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3 years ago

If an object loses electrons it will become negatively charged. True False

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The answer should be true.

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4 years ago

An 84.84 g sample of steel is added to a 100-ml graduated cylinder with 45.0 ml of water. if the resulting water level is 55.5 m

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The volume of the steel that is described above is obtained by water displacement method. This means that the volume can be calculated by subtracting the initial volume from the final volume. This will give us an answer of,
volume of steel = 55.5 mL - 45 mL = 10.5 mL

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3 years ago

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State two reasons why a person might choose a pneumatic system rather than a hydraulic system.

kherson [118]

Answer: