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ANEK [815]
3 years ago
11

Two reactions between a Grignard reagent and a carbonyl compound are given. Draw the main organic product for each reaction and

indicate if H + or H − is needed to complete each reaction. The starting material structures are provided in the answer fields as a starting point for your drawings.

Chemistry
1 answer:
Gnom [1K]3 years ago
7 0

Complete Question

The complete question is shown on the first uploaded image

Answer:

The solution to the question above is shown on the second uploaded image

Explanation:

This talks on the  concept of reaction of Grignard reagent with carbonyl compounds.  Carbonyl compounds (aldehydes and ketones) are extremely reactive towards the nucleophile due to their highly electrophilic nature. Carbonyl groups include a carbon which is attached to the oxygen atom which highly electronegative as compared to the carbon and hence attracts the shared pair of electrons which results in the generation of partial positive character on the carbonyl carbon.

Grignard reagents on reaction with carbonyl compounds carry out a nucleophilic addition reaction which on treatment with water gives a corresponding alcohol.

For the First reaction

The reaction of Grignard reagent with the ketone is shown on the third uploaded image :

i.e Butan-2-one reacts with methyl magnesium bromide in presence of {{\rm{H}}^{\rm{ + }}

 to form 2-methylbutan-2-ol.

For the Second reaction

The reaction of Grignard reagent with the aldehyde is shown on the fourth uploaded image :

I.e Butyraldehyde reacts with ethyl magnesium bromide in presence of {{\rm{H}}^{\rm{ + }}}

 to form hexan-3-ol.

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3 years ago
2. How many grams of zinc will be formed if 32.0 g of copper reacts with zinc nitrate? Copper(I)nitrate is the other product.
Yakvenalex [24]

Answer:

16.46 g.

Explanation:

  • It is a stichiometry problem.
  • We should write the balance equation of the mentioned chemical reaction:

<em>2Cu + Zn(NO₃)₂ → Zn + 2Cu(NO₃).</em>

  • It is clear that 2.0 moles of Cu reacts with 1.0 mole of Zn(NO₃)₂ to produce 1.0 mole of Zn and 2.0 moles of Cu(NO₃).
  • We need to calculate the number of moles of the reacted Cu (32.0 g) using the relation:

<em>n = mass / molar mass</em>

  • The no. of moles of Cu = mass / atomic mass = (32.0 g) / (63.546 g/mol) = 0.503 mol.

<u><em>Using cross multiplication:</em></u>

2.0 moles of Cu produces → 1.0 mole of Zn, from the stichiometry.

0.503 mole of Cu produces → ??? mole of Zn.

  • The no. of moles of Zn produced = (1.0 mol)(0.503 mol) / (2.0 mol) = 0.2517 mol.

∴ The grams of Zn produced = no. of moles x atomic mass of Zn = (0.2517 mol)(65.38 g/mol) = 16.46 g.

3 0
3 years ago
A gas at 200 K occupies a volume of 350 ml. What temperature is needed to increase the volume
Rudik [331]

Answer: Temperature in constant pressure is 286 K

Explanation: If pressure remains constant, then V/T = constant.

V1 = 350 ml and T1 = 200 K and V2 = 500 ml.  V1/T1 = V2/T2

and T2 = T1· V2 / V1 = 200 K · 500 ml / 300 ml = 285,7 K

5 0
3 years ago
100 points
nordsb [41]

Hello!

My argument: Which is better a Ps4 or an Xbox 1


The Ps4 is a better all-round console. The PS4 costs $100 less but has less games than the Xbox 1. The Xbox 1 now came up with dual compatible games. This means that certain games can now run on the Xbox 1 and the Xbox 360. The overall winner is really undetermined. The controller for Xbox has more quicker response time and is specifically built to be an extremely comfortable in your hands. Unlike the PS4 which their controller is built for nothing they really didn't do anything to theirs. Although the console comparisons are the same. The hard drive for the Xbox is non- removable meaning that if you want the hard drive. you would have to break the Xbox to get it . Unlike the Ps4 when you can take it out easily and switch it with any console and still have your data. I am an Xbox fan since for ever but I think that the two consoles are built the same.


Hope it helps!



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