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6. Identify the carboxylic acid and alcohol trom which the following ester was synthestzed. CH2 CH C CH3 CH2 [A). CHCO;H and CHCH,OH [B]. CH CO:H and CHCH,CH,1H [CJ. CH.CHCO:l and CH: CH:OH IDJ. CH;CH.CO.H and CIl.CH,CH2O1 Questions 7-9 are on the procedure below. it an experiment. 25cm' of aqueous sodium carbonate (Na;CO) were diluted with water to 250 cm in a volumetric flask. In a titration using a suitable indicator, 25 cm' of the diluted solution required 28 cm' of 0.05 mol dm suiphuric acid (H,SO.) at the end point. 7. The pH value of the 0.05 mol dm sulphuric acid is most likely to be [AJ 0.05 [B] 0.5 [C) I (D 2 A true statement about the two carbonate 8. solutions could be [A]. Only the diluted solution is hydrolyzed The rwo solutions have the same [C). The two solutions contain the same number of moles of sodium carbonate

6. Identify the carboxylic acid and alcohol trom which the following ester was synthestzed. CH2 CH C CH3 CH2 [A). CHCO;H and CHCH,OH [B]. CH CO:H and CHCH,CH,1H [CJ. CH.CHCO:l and CH: CH:OH IDJ. CH;CH.CO.H and CIl.CH,CH2O1 Questions 7-9 are on the procedure below. it an experiment. 25cm' of aqueous sodium carbonate (Na;CO) were diluted with water to 250 cm in a volumetric flask. In a titration using a suitable indicator, 25 cm' of the diluted solution required 28 cm' of 0.05 mol dm suiphuric acid (H,SO.) at the end point. 7. The pH value of the 0.05 mol dm sulphuric acid is most likely to be [AJ 0.05 [B] 0.5 [C) I (D 2 A true statement about the two carbonate 8. solutions could be [A]. Only the diluted solution is hydrolyzed The rwo solutions have the same [C). The two solutions contain the same number of moles of sodium carbonate

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer Q6, 7, 8

la) The two solutions have the same p [A] Cle - C te [B). The concentration (mol dm) of the original (undiluted) sodium carbonate solution is (A) 0.02 x 28 [B] 0.05 x 28 x 250 (C) 0.05 x 28 x10 [D] 0.25 x 14 What is the systematic name for the following compound? CH;-CH2 CH-CH2-C-CH2-CH3 H3C 3-methylheptan-5-one value. C + aq - C) 2 Clae + Clp) [D. 9. Clz0) - Cl8) Which one of the following is a TRUE 4. statement on buffer solutions? [A]. small quantities of strong acid or strong base The 10. The pH changes slightly on addition of [B). of small-quantities of strong acid or strong base. [C). {D) pH remains unchanged on addition The pH increases on addition of an acid The pH decreases on addition of an acid. Which one of the following motecules [A] S-ethylhexan-3-one 5-methylheptan-3-one 2-ethylhexan-4-one A racemic mixture is 5. will exhibit optical isomerism? CH:CH,CH-CHICH, CH;CH;CH-CHs [D] 1. of two mixture [C). [DJ. An equimolar CH,CH-CH(CH)COOH Identify the carboxylic acid and alcohol trom which the following ester seas synthesizcd. stereoisoniers [B). proportion 6. A pair of enantiomers mixed in equal An equimolar mixture of two uptically CH2 CH active compounds CH3 CH2 [D). A mixture of any two optical isomers. Questions 12-14 concern the following bond CH,CO:H and CH,CH,OH CH,CO:H and CH,CH,CH2OH CH,CH,COland CI1: CH:OH CH;CH CO,H and Cl.CH;CHO1 [A]. [B]. types: JAJ. [BỊ. ionic bond metallic bond dative covalent bond with single ID). Questions 7-9 are on the procedure below. covalent bond covalent bod with r-bund The bonding in tlhe alloy hrass (A]|B] [C] [D] The bonds in buta-1,3-diene 25cm of aquenus sodium ia an carbonate (Na,CO) were diluted with water to 250 cm in a volumetric flask. In a titration using a suitable indicator, 25 cm' of the diluted solution required 28 cm' of 0.05 mol dm sulphuric acid (H.SO) at the end point. experinent 12. 13. [A] [B] [C] [D] The bond in a substance with a high 14. The pH value of the 0.05 mol dm lattice energy [A] [B] [C] [D) Question 15-24 Directives: For cach of the following questions, one or more of the answers given is (are) correct Decide which of the answers is (are) correct. 7. sulphuric acid is most likely to be [AJ 0.05 [B] 0.5 [C) I (DJ 2 A true statement about the two carbonate 8. solutions could be [A]. TRI Only the diluted solution is hydrolyzed The rwo solutions have the same Then choose concemauUn B. [C). number of moles of sodium carbonate The two solutions contain the same If 1,2, only are correct If 2,3, only are correct C. 19
Transcribed Image Text:la) The two solutions have the same p [A] Cle - C te [B). The concentration (mol dm) of the original (undiluted) sodium carbonate solution is (A) 0.02 x 28 [B] 0.05 x 28 x 250 (C) 0.05 x 28 x10 [D] 0.25 x 14 What is the systematic name for the following compound? CH;-CH2 CH-CH2-C-CH2-CH3 H3C 3-methylheptan-5-one value. C + aq - C) 2 Clae + Clp) [D. 9. Clz0) - Cl8) Which one of the following is a TRUE 4. statement on buffer solutions? [A]. small quantities of strong acid or strong base The 10. The pH changes slightly on addition of [B). of small-quantities of strong acid or strong base. [C). {D) pH remains unchanged on addition The pH increases on addition of an acid The pH decreases on addition of an acid. Which one of the following motecules [A] S-ethylhexan-3-one 5-methylheptan-3-one 2-ethylhexan-4-one A racemic mixture is 5. will exhibit optical isomerism? CH:CH,CH-CHICH, CH;CH;CH-CHs [D] 1. of two mixture [C). [DJ. An equimolar CH,CH-CH(CH)COOH Identify the carboxylic acid and alcohol trom which the following ester seas synthesizcd. stereoisoniers [B). proportion 6. A pair of enantiomers mixed in equal An equimolar mixture of two uptically CH2 CH active compounds CH3 CH2 [D). A mixture of any two optical isomers. Questions 12-14 concern the following bond CH,CO:H and CH,CH,OH CH,CO:H and CH,CH,CH2OH CH,CH,COland CI1: CH:OH CH;CH CO,H and Cl.CH;CHO1 [A]. [B]. types: JAJ. [BỊ. ionic bond metallic bond dative covalent bond with single ID). Questions 7-9 are on the procedure below. covalent bond covalent bod with r-bund The bonding in tlhe alloy hrass (A]|B] [C] [D] The bonds in buta-1,3-diene 25cm of aquenus sodium ia an carbonate (Na,CO) were diluted with water to 250 cm in a volumetric flask. In a titration using a suitable indicator, 25 cm' of the diluted solution required 28 cm' of 0.05 mol dm sulphuric acid (H.SO) at the end point. experinent 12. 13. [A] [B] [C] [D] The bond in a substance with a high 14. The pH value of the 0.05 mol dm lattice energy [A] [B] [C] [D) Question 15-24 Directives: For cach of the following questions, one or more of the answers given is (are) correct Decide which of the answers is (are) correct. 7. sulphuric acid is most likely to be [AJ 0.05 [B] 0.5 [C) I (DJ 2 A true statement about the two carbonate 8. solutions could be [A]. TRI Only the diluted solution is hydrolyzed The rwo solutions have the same Then choose concemauUn B. [C). number of moles of sodium carbonate The two solutions contain the same If 1,2, only are correct If 2,3, only are correct C. 19
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