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Andrew [12]
3 years ago
11

Predict the product for the following reaction sequence.3,4-dimethyl-7-nonanol 3,4-dimethyl-7-nonanone 6,7-dimethyl-3-nonanone 6

,7-dimethyl-3-nonanal 6,7-dimethyl-3-nonanol
Chemistry
1 answer:
ra1l [238]3 years ago
7 0

Answer:

Hello your question is incomplete attached below is the complete question

answer : 6,7-dimethyl-3-nonanone ( B )

Explanation:

The product for the following reaction sequence as attached below is

6,7-dimethyl-3-nonanone

The following reaction sequence can be categorized under Carbon Nucleophiles.

Carbon Nucleophiles which can be used to convert  aldehydes and ketones into  carboxylic acids or alkenes.

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Chemistry Question! Please help ASAP!! <br> Would really appreciate!
Ivan
A mixture of Cu2 and CuO of mass 8.828g is reduced to copper metal with hydrogen:
Cu2O + H2 --> 2Cu + H2O
CuO + H2 --> Cu + H2O

If the mass of pure copper isolated was 7.214g, determine the percent by mass of CuO in the original sample

Let x = grams of CuO in the original sample.
y = grams of Cu2O in the original sample.

Eq. #1 x + y = 8.828 grams

Molar mass of CuO = 63.5 + 16 = 79.5 grams
Moles of CuO = x ÷ 79.5

Molar mass of Cu2O = 63.546 + 32 = 95.5 grams
Moles of Cu2O = y ÷ 95.5

According to the 2nd balanced equation, CuO + H2 --> Cu + H2O ,
1 mole of CuO produces 1 mole of Cu.
So, x ÷ 79.5 moles of CuO will produce x ÷ 79.5 moles of Cu


According to the 1st balanced equation, Cu2O + H2 --> 2Cu + H2O,
1 mole of Cu2O produces 2 moles of Cu
So, (y ÷ 95.5) moles of Cu2O will produce 2 * (y ÷ 95.5) moles of Cu

Since, the mass of pure copper isolated was 7.214 grams
Moles of Cu = (7.214 ÷ 63.5)

Moles of Cu from Cu2O + moles of Cu from CuO = total moles of Cu!!

2 * (y ÷ 95.5) + (x ÷ 79.5) = (7.214 ÷ 63.5)
Multiply by both sides by 95.5 * 79.5 * 63.5 to get rid of denominators

(2 * 79.5 * 63.5) y + (95.5 * 63.5) x = (7.214 * 95.5 * 79.5)

10,096.5 y + 6,064.25 x = 36,418.0755
Divide both sides by 6,064.25
x + 1.665 y = 6

Eq.#2 x = 6 – 1.665 y
Eq. #1 x + y = 8.828
x = 8.828 – y

8.828 – y = 6 – 1.665 y
0.665 y = 2.828
y = 4.25 grams of Cu2O
x = 8.828 – 4.25 = 4.58 grams of CuO

% CuO = (4.58 ÷ 8.828) * 100 = 51.88% CuO
3 0
3 years ago
the element copper cu has two naturally occurring isotopes. 69% of all coopers consist of atom with 34 neutrons, 31% of all samp
solniwko [45]
Answer : Average atomic weight of copper atoms will be 63.62 u. 

Explanation : For calculating average atomic weight for any given atom we use this formula,

m = Σm_{i} X % abundance

where, m - avg atomic mass of isotope.
and m_{i} - mass of isotope

on solving we get, 
m = [63 u X (69/100)] + [65 u X (31/100)] = 63.62 u.

6 0
4 years ago
Why do you think knowing enthalpy of reaction might be useful?
mr Goodwill [35]
The Enthalpy of Reaction is the adjustment in the enthalpy of a compound response that happens at a consistent weight. It is a thermodynamic unit of estimation helpful for figuring the measure of vitality per mole either discharged or created in a response.
8 0
4 years ago
Read 2 more answers
Naturally occurring copper has two isotopes, 63cu and 65cu. what is different between atoms of these two isotopes?
GaryK [48]
The differences are <u>the number of neutrons</u> and the <u>atomic mass</u><u /><u />.

Copper-63 has an atomic mass of 63 amu, and has 34 neutrons.
Copper-65 has an atomic mass of 65 amu, and has 36 neutrons.
5 0
3 years ago
1. If you have 25% radioactive parent atoms in a mineral crystal, and 75% daughter atoms, how many half-lives have passed?
Andreyy89
Too freaking many... or maybe not many at all

5 0
3 years ago
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