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3 years ago

What is Tyndall effect? Describe an activity to show that a true solution does not show Tyndall effect

Chemistry

2 answers:

Shkiper50 [21]3 years ago

8 0

Answer:

Tyndall effect is the process of scattering of a beam of light by the dispersed phase of a colloidal solution.

Explanation:

This only takes place in such a solution where the particles have size b/w 1000nm to 1 nm. these particles keep floating because they have charge as well as they too light to sink, thus they are not affected even on the acting of gravitational force. this is therefore only possible in a colloidal solution and sometimes even in suspension as particles are first seen floating then on gravity they settle down. To show this we can perform a small activity,

We need to take two solutions- a true solution like salt water and a colloidal solution like milk solution.

using a torch pass a beam of light through the solutions. you will notice that in the case of a milk solution, you can see the path of light as the dispersed phase particles reflect it. but in the case of a true solution it is unable to see the path of light as the particles are too small. The path of light therefore cannot be seen.

Hence, this proves that true solution cannot show Tyndall effect whereas colloidal solutions show.

beks73 [17]3 years ago

5 0

Answer:

The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible. The amount of scattering depends on the frequency of the light and density of the particles

Explanation:

And an activity to see if the solution doesn't show the tyndall effect is to try to shine a flaslight through it and see if you can see it coming out the other end

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Does water added to a flask containing chlorine gas and solid sodium react in the chemical reaction to make sodium chloride

Jet001 [13]

Answer:

Explanation:

Chemically, we can have a reaction between chlorine gas and solid sodium

This reaction is actually explosive and would produce fine powder of sodium chloride

We have the reaction as follows:

$2Na_{(s)}+Cl_{2(g)}\rightarrow2NaCl_{(s)}$

Essentally, what we can deduce from here is that we do not need to add water to the flask. Except for the reason that we would want the sodium chloride solid in the solution form, there is absolutely no reason to add water to the flask as the reaction would proceed normally

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1 year ago

What is chemical reaction?

Natali5045456 [20]

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

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3 years ago

Which of the following scientists came up with the first widely recognized atomic theory?. . A. John Dalton. . B. Antione Lavois

Yuri [45]

"John Dalton" is the one scientist among the following choices given in the question that came up with the first widely recognized atomic theory. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has come to your help.

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3 years ago

Read 2 more answers

Part A Find ΔS∘ for the reaction between nitrogen gas and hydrogen gas to form ammonia: 12N2(g)+32H2(g)→NH3(g) Express your answ

inessss [21]

Answer:

$\Delta S^{0}$ for the given reaction is -99.4 J/K

Explanation:

Balanced reaction: $\frac{1}{2}N_{2}(g)+\frac{3}{2}H_{2}(g)\rightarrow NH_{3}(g)$

$\Delta S^{0}=[1mol\times S^{0}(NH_{3})_{g}]-[\frac{1}{2}mol\times S^{0}(N_{2})_{g}]-[\frac{3}{2}mol\times S^{0}(H_{2})_{g}]$

where $S^{0}$ represents standard entropy.

Plug in all the standard entropy values from available literature in the above equation:

$\Delta S^{0}=[1mol\times 192.45\frac{J}{mol.K}]-[\frac{1}{2}mol\times 191.61\frac{J}{mol.K}]-[\frac{3}{2}mol\times 130.684\frac{J}{mol.K}]=-99.4J/K$

So, $\Delta S^{0}$ for the given reaction is -99.4 J/K

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4 years ago

Help please ;( really don’t understand Chemistry would really appreciate it if can explain to me thank you!

Tanya [424]

Answer:

b) O₂

d) CH₄

Explanation:

In a chemical equation, the reactants are the substances that are written on the left side. The reactants react to produce the products. On the right side, the products are written.

The arrow => is used to separate the reactants from the products.

To the left of the arrow, you can see this written:

CH₄ + 2O₂

The plus sign + is used to separate each reactant.

In 2O₂ you can ignore the big 2 because it is a coefficient, which is written to balance the equation.

The reactants are CH₄ and O₂

7 0

3 years ago