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2 years ago

.

Chemistry

1 answer:

makkiz [27]2 years ago

6 0

Answer:

Pressure, volume and temperature

Explanation:

<u>Ideal gas law</u>

$\boxed{pV=nRT}$

where

p= pressure,

V= volume,

n= number of moles,

R= universal gas constant

T= temperature

_____

The ideal gas law is made up of the 4 laws below:

1) Avogadro's law

• The volume of a sample of gas is directly proportional to the number of moles of gas in the sample at constant temperature and pressure

• V∝ n

2) Boyle's law

• The volume of a fixed mass of gas is inversely proportional to its pressure at constant temperature

• p∝ 1/V

3) Charles' Law

• The volume of gas is directly proportional to its absolute temperature at constant pressure

• V∝ T

4) Gay-Lussac's Law

• The pressure of gas is directly proportional to its absolute temperature at constant volume

• p∝ T

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2 years ago

0.5 gm of mixture of NH4Cl and NaCl was boiled with 25 ml of 0.95 N NaOH in a vessel till all the ammonia is expelled.The residu

GalinKa [24]

Answer:

72.66%

Explanation:

NH₄Cl reacts in presence of NaOH producing ammonia, NH₃, as follows:

NH₄Cl + NaOH → NaCl + NH₃ + H₂O

The residual NaOH reacts with H₂SO₄ as follows:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O.

The equivalent-gram of H₂SO₄ are:

16mL * 0.1N * 1.06 = 1.696mEq.

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1.696mEq * (100mL / 10mL) = 16.96mEq.

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25mL * 0.95mEq = 23.75mEq

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23.75mEq - 16.96mEq = 6.79mEq = 6.79mmoles NH₄Cl =

6.79x10⁻³ moles NH₄Cl

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6.79x10⁻³ moles NH₄Cl * (53.5g / mol) =

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3 years ago

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Answer:

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Hi there,

Could you please add an attachment of the table? We cannot tell what the errors are if there is no table.

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2 years ago

A small hole in the wing of a space shuttle requires a 20.7-cm² patch.

cricket20 [7]

The Patch's area of the space shuttle in km² is 2.07 × 10⁻⁹ km²

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We have to convert the patch's area from cm² into km².

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1 year ago