1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
11 Question (1 point) 1st attempt Feedback lud See Periodic Table See Hint AO.SOO M solution of potassium hydroxide is used to titrate citric acid (citric acid has three acidic hydrogens per molecule). How many mL of potassium hydroxide will be needed to neutralize 2.95 g of citric acid? (Citric acid has a molar mass of 192.1 g/mol.) ml SOF 13 QUESTIONS COMPLETED < 11/13 > • VIEW SOLUTION C TRY AGAIN o *
1st attempt di See Periodic Table See Hint In one demonstration of this reaction, 32.00 mL of H2 are collected over water at 25°C. Atmospheric pressure is 759.0 mmHg. How many grams of H2 are collected? g Hydrogen MacBo esc Fl F4 F5 F6 4
03 Question (1 point) 1st attempt Feedback See Periodic Table See Hint Identity which of the following compounds can be categorized as a base? Choose one or more CH3COOH CHA | Ba 2 NOS NAOH Na 10 15 QUESTIONS COMPLETED < 03/13 > + VIEW SOLUTION CTRA 0 Ü E e oo prt so 8 9
# 10/29/195 4% gui7666 1st attempt Part 1 (0.7 pt) See Periodic Table (a) What is the significance of the negative sign associated with this value? Choose one: O A. Energy is absorbed from the surroundings during the reaction. O B. Energy is destroyed during the reaction. O C. Energy is released into the surroundings during the reaction. O D. Energy is created during the reaction. (b) Why is the magnitude of this value so much larger than the heat...
ho attempt penalty 08 Question (1 point) 1st attempt Feedback See Periodic Table See Hint While working in the laboratory, a technician accidently knocks over a beaker and spills all 200.0 mL of 2.5 MHCI. Which of the following would neutralize the spill and not have any base left over? (Assume each base will ionize 100%) Choose one or more A. 125.0 mL of 2.0 M Ca(OH)2 B. 100.0 mL of 5.0 M KOH C. 200.0 mL of 2.5 M...
1. Select the two compounds that are more likely to be a gas at room temperature (as opposed to a liquid). CH4 CH3OH C2H6 H2O 2. The separation of charges within a polar molecule is called a(n) ________. polar bond strong attraction dipole ionic bond dipole-dipole 3. Which of the following intermolecular forces best describes why nonpolar molecules like gasoline (C8H18) have only limited solubility in water? dipole-dipole ion-dipole Both dipole-dipole and induced dipole-induced dipole induced dipole-induced dipole dipole-induced dipole...
07 Question (1 point) d See page 593 1st attempt see Periodic Table ) See Hint A crystalline orm of palladium has a density of 1203 g/cm'if the radius of plildum atoms is 1370 pm,whatis the palladium unit atoms is 137.0 pm, what is the palladium unit cell? Choose one: O A. face-centered cubic O B. simple cubic O C. body-centered cubic O D. It cannot be determined from the information givern 07/26 07 Question (1 point) d See page...
Which of the following best describes London dispersion forces. Question 1 options: the intermolecular forces that exist when ions from an ionic compound are attracted to the dipole of polar molecules in a mixture. involves molecular orientations in which the positive end of one dipole is near the negative end of another forces that exist only between molecules that contain hydrogen atoms bonded to highly electronegative atoms such as O, N, F. Interactions between temporary dipoles cause atoms to be...
i need help answering these qoustion plz???? Use the short grey sticks for single bonds and the long flexible grey sticks for double and triple bonds. Note: In reality, single bonds are longer than double or triple bonds ) Fill in the table below Molecule # of lone pairs on central atom linear or bent? (Circle one) HO lincar benti SO lincar bent CO. bent lincar HCN bent lincar Question: Based on your answers in the table above and the...