If 1.2 mL of 2-mcthylcyclohcxanol (MW = 114.19, d = 0.92 g/mL) is reacted with 8

Question

If 1.2 mL of 2-mcthylcyclohcxanol (MW = 114.19, d = 0.92 g/mL) is reacted with 8 mmol of conc. H_2 SO_4 (MW = 98.08, d = 1.84 g/mL) to make 1-methylcyclohcxene (MW = 96.17, d = 0.81 g/mL). What is the theoretical yield of 1-methyleyclohexene, given that the reactants and products are liquids? 0.93 g 0.77 g 162 g 145 g in the dehydration of 2-butanol experiment that you performed, based on your observations, the resultant mixture of butanes is ____ in water, and has a density ____ that that of water. insoluble; higher insoluble; less soluble; higher soluble; less in gas chromatography, the products are separated or resolved into peaks which are recorded when they make a change in the electronic response passing through the detector. How can the products be identified? The intensity of the peak in the chromatograph will allow one to identity the product. By determining the ratio of the product materials by relative peak area. Each product has a unique retention time and this can be compared to the retention time of the pure compound under the same analytical conditions. The relative polarity of each product will allow one to identify each product material.

Explanation / Answer

Q13

V = 1.2 mL

mass = D*V = 1.2*0.92 = 1.104 g of 2-MCHexanol

mol = mass/MW = 1.104/114.19 = 0.009668 mol = 9.668 mmol

so..

mmol of H2SO4 = 8

product yield...

assume ratio is 1:1

so

limiting reactant is methylcyclohexanol

so

9.668 mmol of 2-methylcyuclohexanol --> 9.668 mmol of 1-methylcyclohexene

so

mass of product = mol*MW = 9.668 *96.17 = 929.77156 mg = 0.92977156 g of product

nearest answer is A

Q14.

butene --> non polar, so it will not mix with water (polar) so it is NSOLUBLE

then

butenes --> lighter than water

so they will be LOWER in density

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