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2 years ago

Devise a two‑step synthesis of the alkene from the ketone using the reagents provided

Chemistry

1 answer:

serious [3.7K]2 years ago

6 0

We can convert ketones to alkenes by the use of;

1)B2H6 in THF

2) H2O2/NaOH

<h3>What is a ketone?</h3>

A ketone is a compound of the sort RCO. The compound contains a carbon - oxygen double bond. The ketone can be used in the synthesis of an alkene. The question is incomplete hence I can only give a general answer.

The reaction involves the following reagents;

1)B2H6 in THF

2) H2O2/NaOH

When these two reagents are applied any ketone can be converted to an alkene.

Learn more about ketone: brainly.com/question/4439718

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Describe echolocation. Give an example of an animal that uses echolocation.

olasank [31]

Echolocation helps animals underwater communicate and locate each other

beluga whales use it

7 0

3 years ago

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Consider the following reaction:2NOBr(g) 2NO(g) + Br2(g)If 0.412 moles of NOBr(g), 0.678 moles of NO, and 0.224 moles of Br2 are

Vaselesa [24]

Answer: $K_c=0.0587M$

Explanation: The given chemical reaction is:

$2NOBr(g)\rightleftharpoons 2NO(g)+Br_2(g)$

Equilibrium constant (Kc) in general is written as:

$K_c=\frac{[products]}{[reactants]}$

Note:- Coefficients are written as their powers

So, the Kc expression for the above reaction will be:

$K_c=\frac{[NO]^2[Br_2]}{[NOBr]^2}$

Equilibrium moles are given for all of them. Let's divide the moles by given liters to get the concentrations.

$[NOBr]=\frac{0.412mol}{10.3L}$ = 0.040 M

$[NO]=\frac{0.678mol}{10.3L}$ = 0.0658 M

$[Br_2]=\frac{0.224mol}{10.3L}$ = 0.0217 M

Plug in the values in the equilibrium expression to calculate Kc.

$K_c=\frac{(0.0658M)^2(0.0217M)}{(0.040M)^2}$

$K_c=0.0587M$

4 0

3 years ago

I really kinda need some hell right now :)

Fudgin [204]

It’s c 1.59 x 10^4L i’m positive

4 0

4 years ago

How many moles are in 275g (Ca(NO3)2

shepuryov [24]

Answer:

1.68 mol Ca(NO₃)₂

General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Moles
Compounds

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 275 g Ca(NO₃)₂

[Solve] mol Ca(NO₃)₂

Step 2: Identify Conversions

[PT] Molar Mass of Ca: 40.08 g/mol

[PT] Molar Mass of N: 14.01 g/mol

[PT] Molar Mass of O: 16.00 g/mol

Molar Mass of Ca(NO₃)₂: 40.08 + 2[14.01 + 3(16.00)] = 164.10 g/mol

Step 3: Convert

[DA] Set up: $\displaystyle 275 \ g \ Ca(NO_3)_2(\frac{1 \ mol \ Ca(NO_3)_2}{164.10 \ g \ Ca(NO_3)_2})$
[DA] Divide [Cancel out units]: $\displaystyle 1.67581 \ mol \ Ca(NO_3)_2$

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

1.67581 mol Ca(NO₃)₂ ≈ 1.68 mol Ca(NO₃)₂

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3 years ago

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The energy transferred between samples of matter because of a difference in their temperatures is called a. heat. b. thermochemi

Evgesh-ka [11]

Answer:

The energy transferred between samples of matter because of a difference in their temperatures is called a. heat.

Explanation:

The first law of thermodynamics establishes that when two bodies with different temperatures are put in contact they will find thermic equilibrium to a final temperature by transferring heat. Thus the correct answer is (a).

Thermochemistry is the study of the transformations of heat energy on the chemical reactions. Chemical kinetics is the study of the rate of chemical reactions. And temperature is the measure of the heat.

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3 years ago