Boiling points - Study guides, Class notes & Summaries

Chemistry Cumulative Final Exam Questions With Correct Answers What makes carbon such a unique element? A) Elemental carbon comes in two forms, diamond and graphite. B) Carbon forms four bonds, although the ground state configuration would predict the formation of fewer bonds. C) Carbon forms covalent bonds rather than ionic bonds. D) To a greater extent than any other element, carbon can bond to itself to form straight chains, branched chains and rings. E) Carbon has two stab...

density formula - Answer-D=m/v Celcius to Kelvin - Answer-K=C+273 Ideal Gas Law Equation - Answer-PV=nRT Filtration - Answer-a difference in phase (solids and liquids) or (liquid and gases) Distillation - Answer-A process that separates the substances in a solution based on their boiling points compound rule #1 - Answer-combines a metal and nonmetal 1. Name the metal first 2. Name the nonmetal second 3. Add -ide suffix to the nonmetal compound rule #2 - Answer-combines 2 nonmetals 1. ...

Why do the boiling points of H2O and HF deviate from the trend in Figure 1? A. F and O and both found in the second period. B. The size of H2O and HF are small relative to those of the other molecules. C. H2O and HF are less polarizable than the other molecules. D. H2O and HF can hydrogen bond. ANS - D What type of intramolecular bonding occurs in MgCl2? A. Covalent B. Ionic C. Hydrogen D. Dipole-induced dipole ANS - B Why do the boiling points of the noble gases increase as the peri...

OCR A LEVEL ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED QUESTIONS AND ANSWERS What is the melting and boiling points of alkanes like? - ANSWER--as chain length increases so does the strength of the intermolecular forces as there is greater surface area for contact between molecules and hence stronger london forces and therefore the melting/boiling points are highr for longer chain. What is a structura/chain isomer? - ANSWER--Same molecular formula but a different structural formula Wh...

What are the 3 byproducts of sugar in fermentation? - CO2, alcohol, heat Boiling Point of Water vs Alcohol - 212/173 What are the 5 things a fermented liquid contains? - water, acid, aldehydes, esters, and congeners What is fractional distillation? - The separation and concentration of two or more liquids with different boiling points What counts as a congener? - Acids, aldehydes, esters, fusel oils, other alcohols Define Heads, Hearts, Tails - 1. Heads - first portion of distillate to com...

Why do the boiling points of H2O and HF deviate? A. F and O and both found in the second period. B. The size of H2O and HF are small relative to those of the other molecules. C. H2O and HF are less polarizable than the other molecules. D. H2O and HF can hydrogen bond. ANS - D What type of intramolecular bonding occurs in MgCl2? A. Covalent B. Ionic C. Hydrogen D. Dipole-induced dipole ANS - B Why do the boiling points of the noble gases increase as the period increases? A. The bonds...

Question 1 Correct 5.00 points out of 5.00 If 2.38 mol of a gas has a volume of 120.0 mL, what is the volume of 1.97 mol of the gas at the same temperature and pressure? Select one: A. 99.3 mL B. 119 mL C. 145 mL D. 25.6 mL E. 563 mL Question 2 Correct 5.00 points out of 5.00 What are the conditions of STP? Select one: A. 0°C and 760 atm B. 273.15°C and 760 torr C. 0 K and 1 atm D. 0°C and 1 torr E. 273.15 K and 760 torr Straighterline CHEM101 General Chemistry I Graded...

CHEM 334 Final Exam Questions and Answers, Latest Updated 2024/2025 | 100% Correct Answers. Write complete names for each of the following, including stereochemistry if it is specifically shown. a) b) c) d) e) 2. (15 points) Write accurate structures for the following: CHEM 334 Final Exam Questions and Answers, Latest Updated 2024/2025 | 100% Correct Answers 8/6/22, 10:11 PM Final Exam 2/4 a) the conjugate base of 1-propyne b) a compound of formula C3H4O with ONLY sp2 carbons c) a...

Title: Bonding and Properties Purpose: Study the infrared spectra and physical properties of molecules to determine what kinds of intra-molecular bonds are present within the molecules and what kinds of intermolecular bonds are present between the molecules. Procedure: 1. Add potassium chloride (ionic) to water in a test tube. Shake tube so potassium chloride dissolves. 2. Add pentate to test tube of water. Shake to see if it dissolves in the water. 3. Add normal propyl chloride to test t...

28.0 degrees - Answer-The boiling points at 0 degrees gas pressure in Fahrenheit are: Ammonia (NH3): 110.50 degrees - Answer-Carbon dioxide (C2H5CO2): 55.6 degrees - Answer-Ethyl Chloride (C2H5CL) 21.7 degrees - Answer-Freon (F-12) (CC12F2) 2.31 (Note: 1.0 / 0.433 = 2.31) (Note: 1.0 / 2.31 = 0.433) - Answer-One pound of pressure per sq. in. of water equals ______ feet of water at 62 degrees F. 0.433 (Note: 1.0 / 2.31 = 0.433) (Note: 1.0 / 0.433 = 2.31) - Answer-One foot of...