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3 years ago

Which chemical is the limiting reagent for the entire series of reactions? Why?

Chemistry

2 answers:

alexira [117]3 years ago

4 0

Answer:

Explanation:

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent ends, the chemical reaction will stop.

In other words, the limiting reagent is that reagent that in a chemical reaction is consumed in the first measure, determining the quantity of products obtained. The reaction depends on the limiting reagent, because the other reagents will not react when one has been consumed.

Reptile [31]3 years ago

3 0

I'm assuming that you are asking a general question because you did not include an example.

The limiting reagent is the item in the reactants (reagents) that will run out first. This is because it limits what the reaction can produce, essentially causing the leftover elements/compounds to just sit there.

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Salicylamide can undergo an iodination by electrophilic aromatic substitution. Arrange the procedural steps in order to iodinate

Tanzania [10]

The procedural steps in order to get iodinate salicylamide are as follows:

It begins first at a laboratory.
Secondly, one has to dissolve salicylamide in ethanol.
Then one has to add sodium iodide.
Later on, one has to add sodium hypochlorite to the ice cold solution of salicylamide and sodium iodide.
Thereafter one has to sodium thiosulfate.
It is better to Acidify by a person adding about 10% of HCl.
The one has to collect the crude product through the use of vacuum filtration.
Lastly one then Recrystallize from hot ethanol.

<h3>What is Electrophilic aromatic substitution?</h3>

The Electrophilic aromatic substitution is known to be a kind of an organic reaction where an atom is said to be added or attached to a kind of aromatic structure (that is made up of hydrogen) is said to be replaced by an electrophile.

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2 years ago

Type in the correct values to correctly represent the valence electron configuration of magnesium: AsB

dezoksy [38]

Magnesium (Mg) has atomic number 12 with electronic configuration :

$1s^{2},2s^{2},2p^{6},3s^{2}$

The valence shell of Mg is 3s which has 2 electrons as shown in above electronic configuration.

Therefore, A = 3 and B =2

8 0

2 years ago

Read 2 more answers

A container of carbon dioxide has a volume of 240 mL at a temperature of 22°C. If the pressure remains constant, what is the vol

astraxan [27]

Answer:

Volume of the $CO_{2}$ gas at 44°C is <u>258 ml.</u>

Explanation

here,

using Charles' law ,

$\frac{V}{T} =\frac{v}{t}$

where , V= initial volume v= final volume

T=initial temperature t = final temperature

Given - pressure is constant ,

so , putting the values -

V= 240ml

T= 22 + 273K = 295K (since converting celsius into kelvin that

is +273K )

v =?

t = 44+ 273K = 317K

Now , putting the given values in charles' law ,

$\frac{240ml}{295K} =\frac{v}{317K}$

240ml x317K = v x 295K (through cross multiplication )

v = $\frac{240ml\times317K}{295K}$

= 258ml .

thus ,<u> the volume of carbon dioxide in a container at 44°C IS 258ml .</u>

7 0

3 years ago

a change will only occur one time. group of answer choices cyclic periodic unidirectional bidirectional

Irina18 [472]

A change will only occur one time in unidirectional.

Because

Cyclic : Cyclic compounds are chemical compounds having a basic non-linear structure. In other words, these are ring structures. One or more series of atoms in the compound is connected to form a ring structure.

Periodic : The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number.

Unidirectional : compound is operating or moving in one direction only and it does not move in other direction.

Bidirectional : Capable of reacting or functioning in two, usually opposite, directions.

Thus, A change will only occur one time in unidirectional.

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1 year ago

Calculate the pH of 0.005 methonoic acid solution given that the degree of dissociation is 0.057

BigorU [14]

Answer:

pH = 2.77

Explanation:

Data Given:

degree of dissociation Ka = 0.057

Concentration of Methanoic acid = 0.005 M

pH = ?

Solution:

First we calculate Hydrogen ion concentration

Formula will be used

[H⁺] = $\sqrt{Ka . c}$ . . . . . . (1)

where

Ka = degree of dissociation

c = concentration

Put values in formula 1

[H⁺] = $\sqrt{0.057 * 0.005M}$ . . . . . . (1)

[H⁺] = 0.0017 M

Now Calculate the pH

As we know

pH = -log [H⁺] . . . . . .(2)

Put values in equation

pH = - log [ 0.0017 M]

pH = - [-2.77]

pH = 2.77

So,

pH of methanoic acid = 2.77

5 0

2 years ago