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2 years ago

Which method of separation would be most appropriate for separating a mixture of water and alcohol?

2 answers:

8 0

To separate a mixture of alcohol and water, you can use a process known as fractional distillation. This technique relies on the fact that the compounds in the mixture have different boiling points.

artcher [175]2 years ago

7 0

Answer:C. distillation

Explanation:

Compounds having different boiling points when mixed can be separated by Fractional distillation.

Now when there is a mixture of water and alcohol, Upon heat, we would see that the alcohol will boil at a lower temperature than water for eg, ethanol will boil at 78.5 degrees Celsius, vaporizes and distills into the fractionating columns leaving the water which we know boils at 100 degrees Celsius.

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HELP! Which of the following fossils is an example of permineralization?

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Answer:

Examples of permineralization

Most dinosaur bones are permineralized. Petrified wood: Permineralization is the first step in petrification.

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3 years ago

Read 2 more answers

CS2 (s) + 3 O2 (g) → CO2 (g) + 2 SO2 (g)

Natasha_Volkova [10]

Answer:

2.067 L ≅ 2.07 L.

Explanation:

The balanced equation for the mentioned reaction is:

CS₂(g) + 3O₂(g) → CO₂(g) + 2SO₂(g),

It is clear that 1.0 mole of CS₂ react with 3.0 mole of O₂ to produce 1.0 mole of CO₂ and 2.0 moles of SO₂.

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It is known that at STP: every 1.0 mol of any gas occupies 22.4 L.

using cross multiplication:

1.0 mol of O₂ represents → 22.4 L.

??? mol of O₂ represents → 3.1 L.

∴ 3.1 L of O₂ represents = (1.0 mol)(3.1 L)/(22.4 L) = 0.1384 mol.

To find the no. of moles of SO₂ produced from 3.1 liters (0.1384 mol) of hydrogen:

Using cross multiplication:

3.0 mol of O₂ produce → 2.0 mol of SO₂, from stichiometry.

0.1384 mol of O₂ produce → ??? mol of SO₂.

∴ The no. of moles of SO₂ = (2.0 mol)(0.1384 mol)/(3.0 mol) = 0.09227 mol.

Again, using cross multiplication:

1.0 mol of SO₂ represents → 22.4 L, at STP.

0.09227 mol of SO₂ represents → ??? L.

∴ The no. of liters of SO₂ will be produced = (0.09227 mol)(22.4 L)/(1.0 mol) = 2.067 L ≅ 2.07 L.

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3 years ago

How many moles of atoms are contained in 15.7 g of Bromine

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1 mol of Br = 79.9 g

15.7 g / 79.9 g = 0.196 moles of atoms

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3 years ago

Find the density of an 8 gram rock if the water in a graduated cylinder rises from 25.0 mL to

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To measure the density of the stone placed in a graduated cylinder let us follow these steps bellow

Measure the volume of water poured into a graduated cylinder
Place the object in the water and remeasure the volume.
The difference between the two volume measurements is the volume of the object.
Divide the mass by the volume to calculate the density of the object.

We know that the formula for density is given as

Given data

Mass = 8gram

Initial Volume of water in cylinder = 25mL

Final Volume of water in cylinder = 29mL

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Therefore the density of the rock = 8/4 = 2 g/mL

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