The percent yield of the benzoic acid is<u> 59.33 %</u>
Grignard averages should not contain acidic hydrogens as they are destroyed when they are on the compound. A Grignard reaction is an organometallic chemical reaction in which an alkyl, allyl, vinyl, or aryl magnesium halide adds to the carbonyl group of an aldehyde or ketone. This reaction is important for the formation of carbon-carbon bonds.
<u>Calculation:-</u>
percentage yield = calculated/theoretical
= 3.56/6.00 × 100
= 59.33 %
The carbon atoms of Grignard reagents are partially negatively charged, so they resemble carbanions and react with electrophiles. Grignard reagents are highly reactive reactants used synthetically to form new carbon-carbon bonds. Grignard reagents are made by reacting alkyl halides with magnesium in the presence of dry ether. Chemistry: Grignards are very important reagents in chemistry as they can be used to form a wide variety of compounds.
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Answer:
A. Attractive forces called hydrogen bonds
Explanation:
Answer:
Just say I wonder why teachers give homework :/
Explanation:
Answer:
A) 2.76 x 103 kJ
Explanation:
CH3OH (I)--------->CO (g) + 2H2 (g)
Number of moles contained in 87.1g of hydrogen gas= mass of hydrogen gas/ molar mass of hydrogen gas
Molar mass of hydrogen gas= 2gmol-1
Number of moles hydrogen gas = 87.1g/2gmol-1= 43.55 moles of hydrogen
1 mole of methanol yields 2 moles of hydrogen
x moles of methanol yields 43.55 moles of hydrogen
x= 43.55 moles of hydrogen × 1 mole of methanol/2 moles of hydrogen
x= 21.775 moles of methanol
Then;
If 1 mole of methanol absorbs 128KJ of energy
21.775 moles of methanol will absorb 21.775 × 128/1 = 2.7×10^3 KJ of heat
When a molecule is broken down into its constituent atoms, these atoms do not have the same properties as the molecule.
We can use an everyday molecule, such as water, H20, to show this property. Water is a liquid with unique properties that stem from its hydrogen bonding. On the other hand, its constituent atoms, hydrogen and oxygen, are not liquids, and have very different properties. Oxygen and hydrogen are both gases; hydrogen is dangerous and very flammable, while we breathe in oxygen throughout our lives. This example illustrates how the atoms that make up a molecule usually have different properties than the completed molecule.
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