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3 years ago

Which piece of laboratory glassware did you find to be more efficient for the solvent extraction procedure, and why?

Chemistry

1 answer:

Anna [14]3 years ago

7 0

Answer:

Condenser

Explanation:

Condenser is highly efficient when dealing with the vapors of the product are need to be liquified. It is mostly automated and regularly condenses the incoming vapors into liquid. It is very easy to use. All we have to do it to attach incoming and outgoing flow pipes and constantly monitor the flow of cold water through the condenser. It is made up of special kind of PYREX glass so that it won't break when dealing with steam.

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Which layer of Earth has partially melted material that moves the tectonic plates? Crust, Inner core, Mantle, Outer core

Elena L [17]

This question is very unspecific, but it is probably the Mantle. If that is wrong try Crust.

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3 years ago

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What part of the underside of a geckos feet allows it to stick to surfaces ?

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Answer:

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Explanation:

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2 years ago

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If the reaction N2 (g) + 3 H2 (g) --> 2 NH3 (g) has the concentrations 1.1 M for nitrogen, 0.75 M for hydrogen and 0.25 M fo

Luba_88 [7]

Answer: The value of $K_c$ is 0.136 and is reactant favored.

Explanation:

Equilibrium constant in terms of concentration is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_{c}$

For the chemical reaction between carbon monoxide and hydrogen follows the equation:

$N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)$

The expression for the $K_{c}$ is given as:

$K_{c}=\frac{[NH_3]^2}{[N_2][H_2]^3}$

We are given:

$[NH_3]=0.25M$

$[H_2]=0.75M$

$[N_2]=1.1M$

Putting values in above equation, we get:

$K_c=\frac{(0.25)^2}{1.1\times (0.75)^3}$

$K_c=0.135$

There are 3 conditions:

When $K_{c}>1$ ; the reaction is product favored.
When $K_{c}$ ; the reaction is reactant favored.
When $K_{c}=1$ ; the reaction is in equilibrium.

For the given reaction, the value of $K_c$ is less than 1. Thus, the reaction is reactant favored.

Hence, the value of $K_c$ is 0.136 and is reactant favored.

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3 years ago

Which would affect global transportation if depleted?

Elis [28]

Awnser: C. petrolium

See, petroleum (i.e. oil) is transformed into gasoline.

"Sometimes, petroleum and crude oil are used to mean the same thing, but petroleum itself is a broad range of petroleum products including crude oil itself. We use the term 'petroleum products after crude oil is refined in a factory." - www.eschooltoday.com/energy/non-renewable-energy/what-is-petroleum.html

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Which property indicated a minerals response to ultraviolet light?

kherson [118]

A. Flueorescece. The light from these ultraviolet lamps reacts with the chemicals of a mineral and causes the mineral to glow.

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2 years ago

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