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3 years ago

How would you separate a mixture of alcohol and water

Chemistry

1 answer:

Kisachek [45]3 years ago

4 0

You can use fractional distillation

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Which statement describes a property of covalent compounds? They have a high boiling point because of strong intermolecular forc

svet-max [94.6K]

The correct answer is:

They have a low boiling point because of weak intermolecular forces.

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4 years ago

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A chunk of tin weighing 18.5 grams and originally at 97.38 °C is dropped into an insulated cup containing 75.7 grams of water at

balandron [24]

Answer:

The final temperature of the water is 22.44°C.

Explanation:

Heat lost by tin will be equal to heat gained by the water

$-q_1=q_2$

Mass of tin = $m_1=18.5 g$

Specific heat capacity of tin = $c_1=0.21 J/g^oC$

Initial temperature of the tin = $T_1=97.38^oC$

Final temperature = $T_2$ =T

$q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2=75.7 g$

Specific heat capacity of water= $c_2=4.184 J/g^oC$

Initial temperature of the water = $T_3=21.52^oC$

Final temperature of water = $T_2$ =T

$q_2=m_2c_2\times (T-T_3)$

$-q_1=q_2$ (Law of Conservation of energy)

$-(m_1\times c_1\times (T-T_1))=m_2\times c_2\times (T-T_3)$

On substituting all values:

$-(18.5 g\times 0.21 J/g^oC\times (T-97.38^oC))=75.7 g\times 4.184 J/g^oC\times (T-21.52 ^oC)$

we get, T = 22.44°C

The final temperature of the water is 22.44°C.

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3 years ago

Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the formul

Rudik [331]

F₂(g) + Ca(s) → CaF₂(s)

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4 years ago

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What is the correct name for Au3N?

Serjik [45]

Answer: The correct answer is Gold (I) nitride.

Explanation:

Gold(I) Nitride Au3N Molecular Weigh.

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3 years ago

What is economic what is economic

irina [24]

Answer:

<h2>ANSWER</h2>

Economics is a social science that studies the production, distribution, and consumption of goods and services. Economics focuses on the behaviour and interactions of economic agents and how economies work.

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3 years ago