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3 years ago

Which is the electrophile in the nitration of benzene?

Chemistry

1 answer:

hichkok12 [17]3 years ago

4 0

Answer:

Nitration and sulfonation of benzene are two examples of electrophilic aromatic substitution. The nitronium ion (NO2+) and sulfur trioxide (SO3) are the electrophiles and individually react with benzene to give nitrobenzene and benzenesulfonic acid respectively.

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What is the reaction rate at 1000 K K when the concentration of NO N O is increased to 0.12 M M , while the concentration of H2

marissa [1.9K]

Answer:

the reaction rate of 1,000 k is 17.28 m/s

Explanation:

The computation of the reaction rate in case when NO is increased to 0.12 M is shown below:

According to the question, data provided is as follows

NO = 0.12M

$H_2 = 2.00\times 10^{-2} M$

Based on the above information

Reaction rate is

$= (6.0\times10^4)\times(0.12)^2\times(2\times10^{-2})$

= 17.28 M/s

Hence, the reaction rate of 1,000 k is 17.28 m/s and the same is to be considered

4 0

4 years ago

What is the molar concentration (in moles/L) of a solution made with 3.744 g of Mg(NO3)2 dissolved in enough water to make 50.0

Annette [7]

Answer:

The molar concentration of a solution made with 3.744 g of Mg(NO₃)₂ dissolved in enough water to make 50.0 mL of solution is $0.5 \frac{moles}{L}$

Explanation:

Molarity or Molar Concentration is the number of moles of solute that are dissolved in a certain volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$molarity=\frac{number of moles}{volume}$

In this case:

Mg: 24.3 g/mole
N: 14 g/mole
O: 16 g/mole

So, the molar mass of Mg(NO₃)₂ is:

Mg(NO₃)₂= 24.3 g/mole + 2*(14 g/mole + 3*16 g/mole)= 148.3 g/mole

So, if you have 3.744 g of Mg(NO₃)₂, you can apply the following rule of three: if 148.3 grams of Mg(NO₃)₂ are present in 1 mole, 3.744 grams in how many moles are present?

$moles=\frac{3.744 grams*1mole}{148.3 grams}$

moles= 0.025

Then you have:

number of moles=0.025
volume= 50 mL= 0.05 L (being 1,000 mL= 1 L)

Replacing in the definition of molarity:

$molarity=\frac{0.025 moles}{0.05 L}$

you get:

$molarity=0.5 \frac{moles}{L}$

The molar concentration of a solution made with 3.744 g of Mg(NO₃)₂ dissolved in enough water to make 50.0 mL of solution is $0.5 \frac{moles}{L}$

6 0

3 years ago

Which of the following shows a correct base pairing in DNA

statuscvo [17]

DNA bop it does not say it in my test

6 0

3 years ago

1kg of hydrogen is burned in oxygen how much energy is released

Simora [160]

Answer:

121 million joules energy is released

Explain :

As there are 500 moles of hydrogen gas in a kilogram, this means that burning a kilogram of hydrogen gas releases 500 times as much energy or 121 million joules .

6 0

2 years ago

The number of protons plus the number of neutrons is the atom called what

MrMuchimi

Answer:

The mass number

Explanation:

neutrons + protons = mass number

5 0

3 years ago