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sladkih [1.3K]
3 years ago
8

How many water molecules are created when 32 grams of oxygen react completely with 4.0 grams of hydrogen?

Chemistry
1 answer:
ch4aika [34]3 years ago
3 0

Answer:

d. 1.2 × 1024

Explanation:

From the equation of reaction

2H2 + O2= 2H2O

i.e 2mole(4g) of hydrogen requires 1 mole(32g) of oxygen to produce 2mole (2×6.02×10^23 molecules) of H2O= 1.2×20^24 molcules of water.

NB: 1 mole of H2O contains 6.02×10^23 molecules of H2O

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Hitman42 [59]

Answer:

Here's what I get  

Explanation:

You may have done a Williamson synthesis of guaifenesin by reacting guaiacol with 3-chloropropane-1,2-diol.

A. Mechanism

Step 1

NaOH converts guaiacol into a phenoxide ion.

Step 2

The phenoxide acts as the nucleophile in an SN2 reaction to displace the Cl from the alkyl halide.

B. Improve the yield

You probably carried out the reaction in ethanol solution — a polar protic solvent.

You might try doing the reaction in a polar aprotic solvent— perhaps DMSO.

A polar aprotic solvent does not hydrogen bond to nucleophiles, so they become stronger.

C. Another method of ether synthesis —dehydration of alcohols

Sulfuric acid catalyzes the conversion of primary alcohols to ethers.

This is also a nucleophilic displacement reaction.

Protonation of the OH converts it into a better leaving group.

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6 0
3 years ago
Porque la gasolina cintemos plomo?
AlladinOne [14]
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7 0
3 years ago
What happens in a condensation reaction?
Agata [3.3K]

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8 0
3 years ago
What is the number of electrons that can be held in the first orbit closest to the nucleus
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5 0
3 years ago
How many grams of water do you need to weigh if a reaction requires 5 moles of h2o
rewona [7]

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Therefore, mass= Relative Molecular Mass×number of moles

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5 0
3 years ago
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