Which of these properties of water makes it a good solvent for a variety of substances? Select one: a. its high specific heat. b. Its boiling point c. its hydrogen bonding ability d. Its high surface tension
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Which of these properties of water makes it a good solvent for a variety of substances?...
which of the following propertties of water explains
its solvent abilities for certain substances?
Which of the following properties of water explains its solvent abilities for certain substances? High surface tension Kinetic energy of liquid water molecules O Polarity of water molecules High specific heat
Water has significant IMF, which result in many of its unique properties—high boiling point relative to its molecular weight, high surface tension, strong capillary action. Draw the molecular structures for six water molecules and show how they might organize themselves due to hydrogen-bonding. Show the H-bonds with dotted lines.
Methanol (CH3OH) is a volatile liquid used widely as a laboratory solvent. Methanol has a standard boiling point of 64.8 °C and its enthalpy of vaporization is 37.6 kJ mol! What is its vapour pressure (in bar) at 52.4 °C? You have 5 attempts at this question. Answer: Check Consider the molecule below: :0=s=0: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will...
Why are water molecules less dense in ice than in water? Specific heat Van der Waals forces Hydrogen bonding Ice floats Which of the following are properties of water molecules? Select all that apply. Cohesion Surface tension Capillary action Adhesion
en temperatu lder 4. Place the following substances in order of decreasing vapor pressure at a given CF. PF BrF, BrF, > PFS > CF Brf > CF, > PES PF, > BrF, > CF CF, > BrF, > PFS CF, > PF > BrFs C d 5. Define critical point. 2 The temperature and pressure above which a supercritical fluid exists. bThe temperature and pressure where liquid, solid, and gas are equally stable and are in equilibrium c. The...
Question 4 1 pts Which are unique properties of water when compared to most other solvents? None of the statements are correct Low boiling point All statements are correct O High melting point Low surface tension
Water is one of the most important compounds for life because of many properties. Identify one of those properties from the choices below. a. low heat capacity b. good solvent for hydrophobic compounds such as lipids c. ice is much more dense than liquid water d. linear, non polar molecule that can form hydrogen bonds between oxygen and carbon e. cohesion with other water molecules
16. If water is a solvent, of the compounds shown below, how many are readily soluble in water НН НН НН [a] 1 [b1 2 c] 3 [d] 4 [e] 5 17. Select the compound expected to have the highest surface tension: F: H-N-H F: F: [b][c [d 8. Of the compounds shown below, how many have dipole-dipole interactions as at least one of their intermolecular forces: Se-C-Se [a]1 [b)2 [c]3 [d]4 [e]5 Which of these solutes would have the...
C1. Water Water has a number of unique properties that are essential for life. Most of these properties are as a result of the polar nature of water and its ability to form hydrogen bonds. Using your knowledge on the properties of water, answer the questions below. a) Why is it important for water to be a liquid over a broad range of temperatures? [2 marks] b) Why is water referred to as polar and why does its polarity affect...
Consider the molecule below: o=s=o: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will be deducted for incorrect guesses. Select one or more: Dispersion forces Dipole/dipole forces Hydrogen bonding Check What amount of thermal energy (in kJ) is required to convert 136 g of ice at -16 °C completely to water vapour at 217 °C? The melting point of water is 0°C and...