If the dehydration reaction of an alcohol is successful. The changes would be seen in the IR spectrum for the product compared to the starting material are as,

The O-H and C-O band is disappear from stating material
The addition of a C-C double bond band in the product.

In dehydration reaction of alcohol ( O-H and C-O bond ) contain , the water molecule ( $H_{2}O$ ) is release from the reactant and C-C double bond is form which is known as alkene in the product .

The reactant and product have different structure. To determine the structure of the compound IR spectroscopy is used. In IR spectrum the peak corresponds to 3400-3600 cm is missing in the product of dehydration reaction of an alcohol. It means O-H band is disappear from stating material.

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4 0

2 years ago

a person measures the mass of an 8 cm3 block of brown sugar to be 12.9 g. What is the density of the brown sugar.

Maksim231197 [3]

From the information we have, this block of brown sugar has a volume of 8cm3

The mass of the block is 12. 9 grams.

We need to find out the density of the sugar.

For a solid material the formula for calculating density is given as:

Density = mass / volume

Therefore we simply fit in the above given values into this formula, so:

Density = 12.9 / 8

Density = 1.61

Therefore the density of the block of sugar is 1.61g/ml

8 0

3 years ago