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3 years ago

Distillation is the process of separating liquids by using

Chemistry

2 answers:

Mekhanik [1.2K]3 years ago

6 0

Answer:

the action of purifying a liquid by a process of heating and cooling.

Explanation:

masha68 [24]3 years ago

4 0

Answer: if you have a mixture of liquids, generally of varying boiling points, Distillation is a very useful technique. One of the simplest setups involves a Round bottom Flask w/ a thermometer in the top, with its bulb at where it is near a tube angled slightly downward out into a condenser.

As the flask is heated, the more volatile (lower B.P.) liquids will rise as fumes, register a temperature, and in the condenser, become liquid again. As this process continues, and you take the fractions at differing temps,

You can efficiently separate the various components If the Boiling Points are not too similar. There is more, but this is a good start.

Explanation:

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How many grams is 10 moles of H2O?

Elan Coil [88]

Answer:

So, 10 mole of water will weigh (18x10) = 180g.

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2 years ago

Name at least two benefits of using models in science

STatiana [176]

Answer:

Viewing systems from multiple perspectives.

Discovering causes and effects using model tractability.

Improving system understanding through visual analysis.

Explanation:

Got this from google, lol. But, I put three here just in case you could get extra credit for more than two.

3 0

3 years ago

Read 2 more answers

In one experiment, the reaction of 1.00 mercury and an excess of sulfur yielded 1.16g of a sulfide of mercury

Nuetrik [128]

Answer and Explanation:

Mercury combines with sulfur as follows -

Hg + S = HgS

Hg = 200,59

S = 32,066 Therefore 1.58 g of Hg will react with -

1.58 multiply with 32,066 divide by 200,96 of sulfur.

= 0.25211 g S

This will form 1.58 + 0.25211 g HgS = 1.83211 g HgS

The amount of S remaining = 1.10 - 0.25211 = 0.84789 g

5 0

3 years ago

A lithium flame has a characteristic red color due to emissions of wavelength 671 nm. What is the mass equivalence of 1 mol of p

e-lub [12.9K]

Answer:

1.98x10⁻¹² kg

Explanation:

The energy of a photon is given by:

E= hc/λ

h is Planck's constant, 6.626x10⁻³⁴ J·s

c is the speed of light, 3x10⁸ m/s

and λ is the wavelenght, 671 nm (or 6.71x10⁻⁷m)

E = 6.626x10⁻³⁴ J·s * 3x10⁸ m/s ÷ 6.71x10⁻⁷m = 2.96x10⁻¹⁹ J

Now we multiply that value by Avogadro's number, to calculate the energy of 1 mol of such protons:

1 mol = 6.023x10²³ photons

2.96x10⁻¹⁹ J * 6.023x10²³ = 1.78x10⁵ J

Finally we calculate the mass equivalence using the equation:

E=m*c²

m=E/c²

m = 1.78x10⁵ J / (3x10⁸ m/s)² = 1.98x10⁻¹² kg

6 0

3 years ago

Consider the elements bromine and chlorine; which element has a larger ionic radius

ipn [44]

Bromine has one more electron shell than the chlorine atom making the radius larger than the chlorine atom.

8 0

3 years ago