Infrared (IR) spectroscopy is used to identify functional groups within a molecule. Click on the peak that corresponds to the st
retching vibration for the highlighted bond.chemical bonds are given
1 answer:
Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct place to click on any of the double peak showing between 2500 and 3000 on the uploaded question
Explanation:
The group which is being highlighted is an Aldehyde functional group denoted by this structure ()
This groups stretch on the infrared spectrometer gives two medium intensities peaks
Its stretch comes at 2820 - 2850 peak 1
and at 2720 - 2750 peak 2
So the correct click would be on any of the two peaks between 2500 - 3000 region
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Answer:
The molarity is 0.56
Explanation:
In a mixture, the chemical present in the greatest amount is called a solvent, while the other components are called solutes. Then, the molarity or molar concentration is the number of moles of solute per liter of solution.
In other words, molarity is the number of moles of solute that are dissolved in a given volume.
The Molarity of a solution is determined by:
Molarity is expressed in units ().
Then you must know the number of moles of Cu(NO₂)₂. For that it is necessary to know the molar mass. Being:
- Cu: 63.54 g/mol
- N: 14 g/mol
- O: 16 g/mol
the molar mass of Cu(NO₂)₂ is:
Cu(NO₂)₂= 63.54 g/mol + 2*(14 g/mol + 2* 16 g/mol)= 155.54 g/mol
Now the following rule of three applies: if 155.54 g are in 1 mole of the compound, 225 g in how many moles are they?
moles= 1.45
So you know:
- number of moles of solute= 1.45 moles
- volume=2.59 L
Replacing in the definition of molarity:
Molarity= 0.56
<u><em>The molarity is 0.56</em></u><u><em></em></u>