3 years ago

There are 3 different possible isomers of a dibromoethene molecule. what are these isomers?

Chemistry

1 answer:

olasank [31]3 years ago

6 0

Answer:

1,1-, (Z)-1,2-, and (E)-1,2-dibromoethene

Explanation:

Their structures are shown below.

The 1,2-dibromoethenes (2 and 3) are positional isomers

of 1,1-dibromoethene (1).

(Z)-1,2-dibromoethene (2) and (E)-1,2-dibromoethene (3) are stereoisomers (geometric isomers) of each other.

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Calculate the Molarity of 89.94 g NaCl is dissolved in 1249 mL of solution.

tino4ka555 [31]

Answer:

The molarity of the solution is 1, 23 M.

Explanation:

We calculate the weight of 1 mol of NaCl from the atomic weights of each element of the periodic table. Then, we calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case NaCl) in 1000ml of solution (1 liter)

Weight 1 mol NaCl= Weight Na + Weight Cl= 23 g + 35, 5 g= 58, 5 g

58, 5 g-----1 mol NaCl

89,94 g ---------x= (89,94 g x 1 mol NaCl)/58, 5 g= 1,54 mol NaCl

1249 ml solution------ 1,54 mol NaCl

1000ml solution------x= (1000ml solutionx 1,54 mol NaCl)/1249 ml solution

x=1,23 mol NaCl---> The solution is 1, 23 molar (1,23 M)

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3 years ago

What breaks and shatters easily?

Sergio [31]

Glass breaks and shatter easily.

4 0