i just want to confirm answers if there is a mistake please tell me asapp Questi

Question

i just want to confirm answers if there is a mistake please tell me asapp

Question 1 (0.25points Consider 15 mL of an aqueous solution conaining 2.0 g of anrganic solute. If tha disibution compound th can bescowered with a ing rconwith 25.7 mL. NOTE Enter your numerical answer in the spoce below to two significant figures Question 2 025 points) If solue ey-0867gicm s used in the etraction of an orgaric compound from dilute squeoue solution it will form the lower layer. True or False Question 3 DS ponts) puckered. le rings in which the carbon atoms cannot be placed in a plane without ring strain To answer this question slec all pos ble anwers froem the Ist below. Question 4·025 points) d The compound 2-chloro-1-pentone has the formuls C.HC is an alkyne can eist as cs and trane lBomers. Quastion 5 (0 25 pointsd) B is incormectly nemed. has the formub CH cannox existas cls and trans oner ha3 structural somers Question6 10 25 points E How many different aromatic compounds have the formul CHBr Question 7 (0.25 paind ncicote the relacionchip betmeen the folowingcompounds If the image above does not appesc cick hene) Choose from idticel structural isomers pcomctic bomers, or enanciomers and type the ppropriote response in the anewer box below (Wstch your speling! Question 8 (0.25 poine Which of the follow ing is chia

Explanation / Answer

1) Correct

If x grams of solute partition into ether layer, then solute partition into water layer be 2.0g –x

P ether/water= g of solute partition in ether/ g of solute partition in water

                 = (x g/25.7ml) ether/(2 – x)g/15 ml water = 20

              = x g (15 ml water)/ /(2 – x)g25.7ml ether = 20

(20) (51.4 – 25.7 x) =   15 x

1028 - 514 x =   15 x     

1028 =   529 x

         x =   1028/529 g = 1.9334

% of solute recovered in ether =   (x ÷ 2.0 g) × 100%

= (1.9334 g ÷ 2.0 g) × 100% =   96.67%

Ans 97 (2 sig. fig)

2) Your answer is correct.

Density of water is 1g/cm3. Density of organic compound is 0.867g/cm3 which is less than water, so it forms upper layer.

3)

Any ring with three to four carbons has a significant amount of ring strain, so cyclopropane and cyclobutane have ring strain.

A ring with five to seven carbons is considered to have minimal to zero strain, so cyclopentane, cyclohexane, and cycloheptane have less strain.

Cyclopropane

Cyclobutane

4) Correct

2-Chloro-1-pentene has molecular Formula C5H9Cl is halo alkene, which cannot exist as cis and trans isomer.

5)   Correct

4-Methyl-2-hexene has molecular formula C7H14 which can exist as cis and trans isomer.

6) Correct

7) Correct

8) Correct

NH2CH(CH2)COOH is chiral, because 4 different group is attached to central carbon atom.

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