a)
Interpretation:Whether an impurity always lowers melting point of organic compound is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
b)
Interpretation:Whether sharp melting point for crystalline organic substance always indicates pure single compound is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
c)
Interpretation:Whether addition of compound A that does not lower melting point of compound Xso Xis identical to A is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
d)
Interpretation:Whether addition of compound A that lowers melting point of compound Xis not identical to A is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
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EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- Anyone able to help me with this please?arrow_forwardPlease explain alsoarrow_forwardUse intermolecular forces to account for each of these differences: a. CH;OH boils at 65°C while CH;SH boils at 6°C. b. Xe is a liquid at 120 K while Ar is a gas. c. Acetone boils at 56°C while 2-methylpropane boils at -12°C. See structures below. CH3 CH3-C-CH3 CH3-CH-CH3 Acetone 2-Methylpropanearrow_forward
- A sample consists of butyric acid, acetic acid and ethylene glycol. At a distilling temperature of 162°C, the distillate will significantly consist of: I. Butyric acid (boiling point: 162°C)II. Acetic acid (boiling point: 118°C)III. Ethylene glycol (boiling point: 197°C)A. I and II only B. I onlyC. I,II, and IIID. III onlyarrow_forwardCHOOSE THE LETTER OF THE CORRECT ANSWER. (note: the picture with box is for number 2 while the other picture is for number 1) 1. Based on the illustration, what is the classification of the given structure? a. Alcohol b. Ether c. Aldehyde d. Ketone e. Carboxylic Acid 2. What is the main functional group of the organic molecule?* Reaction mechanisms of organic molecules (alcohol to carboxylic acid) a. Carboxyl functional group b. Alcohol functional group c. Carbonyl functional group d. Aldehyde functional grouparrow_forwardGive answer all sub parts..I will give you upvotearrow_forward
- Which of the following molecules has only single bonds. A. CHCHCH3 B. CH2CHCH3 C. CH3CH2CCH D. CH3CH3 E. CH2CH2 Which of the following molecules has a carbon-to-carbon double bond? A. CH3CCH B. CHCH C. CH3CH3 D. CH3CH2CH3 E. CH2CHCH3arrow_forward1. A block of solid copper at room temperature is heated to 1200 degree celcius where it melts forming liquid copper. This process represents a. A. Physical change to the copper b. Chemical change to the copper c. Measuremement of the boiling point of copper d. Chemical property of copper e. Chemical reaction of copper 2. Isopropyl alcohol is an organic liquid at room temperature with the chemical formula of C3 H8 O. Classify isopropyl alchol as one of the following. A. Element b. Compound c. Homogeneous mixtures d. Heterogeneous mixture e. None of the above 3. Ammonium phosphate, (NH4)3 PO4, is used in fertilizer to supply nitrogen and phosphorus to the soil. What is the total number atoms in one molecule of ammonium phosphate? A. 10 b. 13 c. 18 d. 20 e. None of the above 4. What is the term for a change of state from a liquid to a gas? A. Melting b. Condensation c. Evaporation d. Sublimation e. None of the above 5. How many neutrons are in the nucleus of an atom of Silver…arrow_forward7. H3C-CH The compound above is classified as a(n) alkane d. ketone alkene a. e. b. carboxylic acid c. akdehyde 8. Which of the follow ing is a secondary alcohol? d. CH3OH a. H3C C CH3 CH3 b. H3C0-CH3 e. CH3CH2OH c. OH H3C CH3 H. 9. CH3 OH -CH-CH-CH, H3C What is the correct name for the above compound? a. 2-methyl-3-butanol b. 2-pentanol isobutanol d. 3-methy-2-butanol none of these e. c.arrow_forward
- Alcohols with two or more - OH groups have higher boiling point.I. Alcohols with more than two -OH groups are more water soluble than similar alcohols with only one -OH group.A.BOTH statements are CORRECTB. BOTH statements are INCORRECTC. FIRST statement is CORRECT. SECOND is INCORRECT D.FIRST statement is INCORRECT, SECOND is CORRECT 2. l. An alcohol is an organic compound with at least one hydroxyl (-OH) group bound to unsaturated carbon atom. II. Alcohols have higher boiling points than corresponding alkynes.A.FIRST statement is CORRECT. SECOND is INCORRECTO FIRST statement is INCORRECT SECOND Is CORRECTAre INCORKI© bUlk statements are CORRECTIarrow_forward20. Which statement is false regarding this compound? A. It should be somewhat soluble in water. B. It is achiral. C. The nitrogen atom should have a trigonal planar geometry. D. It should have a relatively high boiling point. E. All of the statements (A-D) are true. NH₂arrow_forward24 Which of the following contains a hydroxyl group? A. Alcohol B. Ether C. Thiol D. More than one answer is correct 25 Tetrahydrocannabinol molecule has four functional groups. Which one is not included? A. An alkane B. an ether C. a phenolic -OH D. benzene ring E. a carbon-carbon double bond H H3C CH3 H3C H OH CH3arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning