The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

1 Answer

Answer :

ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS

Related questions

Description : What statement about Arrhenius acids is FALSETheir aqueous solutions are electrolytesTheir water solutions are called aqueous acids They increase the concentration of hydroxide ions in aqueous solutionThey are molecular compounds with hydrogen ions?

Last Answer : The answer is: They increase the concentration of hydroxide ions in aqueous solution.

Description : A bond in which there is an unequal attraction for the shared electrons and a resultant unbalanced distribution of charge is which one of the following types of bonds? w) ionic x) pure covalent y) nonpolar covalent z) polar covalent 

Last Answer : ANSWER: Z -- POLAR COVALENT 

Description : Which of the following terms denotes the polar molecules or negative ions clustered about a central positive ion? w) ligands x) isomers y) complex ions z) dipoles

Last Answer : ANSWER: W -- LIGAND

Description : pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in ... . z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.

Last Answer : ANSWER: X -- THERE ARE 1,000 TIMES MORE HYDROGEN IONS IN THE PH 5 SOLUTION

Description : An Arrhenius acid is a substance that: w) donates protons x) accepts protons y) donates hydrogen ions to water z) donates hydroxide ions to water

Last Answer : ANSWER: Y -- DONATES HYDROGEN IONS TO WATER 

Description : The silver luster of the metals can be attributed to one of the following. It is attributed to their free w) protons x) ions y) neutrons z) electrons

Last Answer : ANSWER: Z -- ELECTRONS 

Description : The modern atomic theory was conceived by : w) Victor Grignard x) Daniel Rutherford y) Svante Arrhenius z) John Dalton

Last Answer : ANSWER: Z -- JOHN DALTON

Description : My theory of electrolytic dissociation earned me t 1903 Nobel Prize in chemistry. My name is: w) Niels Bohr x) Svante Arrhenius y) Michael Faraday z) John Cavendish

Last Answer : ANSWER: X -- SVANTE ARRHENIUS

Description : The 1936 Nobel Prize in chemistry was awarded to Peter J.W. Debye for his studies of: w) kinetic energy of colliding particles x) electron configuration y) dipole moments z) conformations of cyclohexane

Last Answer : ANSWER: Y -- DIPOLE MOMENTS

Description : The boiling points of the halogens increase going from F2 to I2. What type of intermolecular forces are responsible for this trend? w) permanent dipole x) hydrogen bonding y) ion-ion attraction z) London dispersion forces

Last Answer : ANSWER: Z -- LONDON DISPERSION FORCES

Description : What property of low-molecular weight aldehydes and ketones accounts for the magnitude of their boiling points? (a) The ability to form strong H-bonds between their molecules. (b) The ability of ... other polar molecules. (d) The ability of the carbonyl group to attract electrophiles and form bonds.

Last Answer : The ability of the polar carbonyl group to attract other polar molecules.

Description : Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Last Answer : ANSWER: Y -- ACETIC ACID

Description : Amphoteric substances: w) act as either bases or acids x) precipatate from aqueous solutions y) salt out of basic solutions z) form emulsions in oils

Last Answer : ANSWER: W -- ACT AS EITHER BASES OR ACIDS

Description : Which of the following is NOT a general property of hydroxide bases in aqueous solution? w) High solubility x) Bitter taste y) Ability to neutralize aqueous acid solutions z) Ability to change phenolphthalein from colorless to red

Last Answer : ANSWER: W -- HIGH SOLUBILITY (The hydroxides of the alkali metals are soluble in water but all the other metal hydroxides are only moderately or sparingly soluble.)

Description : Which of the following molecules or ions is NOT formed when K metal reacts with liquid CH3OH? Is it: w) potassium ion x) hydrogen ion y) methoxy ion z) hydrogen molecule

Last Answer : ANSWER: X -- HYDROGEN ION

Description : Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion

Last Answer : ANSWER: Z -- DOUBLY CHARGED MAGNESIUM ION

Description : Ionic compounds have high melting and boiling points because A) less energy is required to break the strong interionic attraction B) large amount of energy is required to break the interionic attraction C) No energy is required D) None of the above

Last Answer : B) large amount of energy is required to break the interionic attraction

Description : What is the molecular geometry of thiocyanate (pron: thie-owe-SIE-a-nate) ion (SCN minus 1)? w) linear x) angular y) tetrahedral z) pyramidal

Last Answer : ANSWER: W -- LINEAR

Description : What is the molecular geometry of the Bromine Tetraflouride ion (B-F-4-minus 1) w) linear x) angular y) tetrahedral z) pyramidal

Last Answer : ANSWER: Y -- TETRAHEDRAL

Description : x mmol of `KMnO_(4)` react completely with y mmol of `MnSO_(4)` in presence of fluoride ions to give `MnF_(4)` quantitatively. Then :

Last Answer : x mmol of `KMnO_(4)` react completely with y mmol of `MnSO_(4)` in presence of fluoride ions to give `MnF_(4)` ... =y B. 4x=y C. `xgty` D. `x lt y`

Description : It is a common observation that naturally occurring processes have a particular direction associated with them. For instance, heat flows from a hot body to a colder body. The property of a system ... this natural direction of events is called w) energy x) entropy y) enthalpy z) equilibrium 

Last Answer : ANSWER: X -- ENTROPY

Description : Name the person who developed a table of elements which revealed regularities in elemental properties in 1869? w) Theodore Richards x) Antoine Lavoisier y) Dmitri Mendeleev z) Svante Arrhenius

Last Answer : ANSWER: Y -- DMITRI MENDELEEV

Description : When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases

Last Answer : ANSWER: X -- FREE RADICALS

Description : When dilute aqueous solutions of two salts are mixed, the process is associated with (A) Decrease in temperature (B) Increase in temperature (C) No change in temperature (D) Change in temperature which is a function of composition

Last Answer : B) Increase in temperature

Description : Conversion of pepsinogen to pepsin is (A) Intra molecular rearrangement (B) Breaking of hydrogen bonds (C) Covalent modification (D) Polymerisation

Last Answer : Answer : C

Description : Hydrogen peroxide solution `(20 mL)` reacts quantitatively with a solution of `KMnO_(4) (20 mL)` acidified with dilute of `H_(2)SO_(4)`. The same volu

Last Answer : Hydrogen peroxide solution `(20 mL)` reacts quantitatively with a solution of `KMnO_(4) (20 mL)` ... calculate the molarity of `H_(2)O_(2)`.

Description : Why do alcohols have boiling points much higher than hydrocarbons of similar molecular weight? (a) Alcohols have greater van der Waals attraction forces. (b) Alcohol molecules have greater ... of volatilization. (d) Alcohols must overcome greater ionic forces in the process of volatilization.

Last Answer : Hydrogen bonds must be broken in the process of volatilization

Description : "Under the same conditions of temperature and pressure, the volumes of reacting gases and of their gaseous products are expressed in ratios of small whole numbers." This law is attributed to: w) Dalton x) Gay-Lussac y) Ramsay z) Avogadro

Last Answer : ANSWER: X -- GAY-LUSSAC

Description : Which of the following liquid types would have th highest viscosity? w) low molecular mass-polar liquid x) high molecular mass-polar liquid y) low molecular mass-nonpolar liquid d high molecular mass-nonpolar liquid

Last Answer : ANSWER: X -- HIGH MOLECULAR MASS-POLAR LIQUID

Description : Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions?

Last Answer : Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions? A. `Li^(+)` B. `Na^(+)` C. `Rb^(+)` D. `Cs^(+)`

Description : The compound which would have the greatest molar effect on the colligative properties of a dilute solution would be: w) CaCl2 x) NaCl y) C6H12O6 z) Benzene

Last Answer : ANSWER: W -- CaCl2

Description : According to the kinetic theory, the Kelvin temperature of an ideal gas is proportional to which one of the following. Is the temperature proportional to the gas's average molecular: w) velocity x) momentum y) kinetic energy z) potential energy

Last Answer : ANSWER: Y -- KINETIC ENERGY

Description : The force responsible for drops of liquid assuming a spherical shape is known as: w) strong nuclear force x) Van der Waals attraction y) surface tension z) osmotic pressure

Last Answer : ANSWER: Y -- SURFACE TENSION

Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) ozone and methane x) nitrous oxide and sulfur dioxide y) methane and carbon dioxide z) ozone and carbon monoxide

Last Answer : ANSWER: Y -- METHANE AND CARBON DIOXIDE 

Description : Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities? w) oxygen and hydrogen x) ozone and methane y) nitrous oxide and sulfur dioxide z) methane and carbon dioxide e) ozone and carbon monoxide

Last Answer : ANSWER: Z -- METHANE AND CARBON DIOXIDE

Description : The launch of the first LIQUID fueled rocket in the world is attributed to: w) China x) Russia y) United States z) Germany

Last Answer : ANSWER: Y -- UNITED STATES

Description : Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. ... undergo conformational changes between open states and closed states d. Ion channels can be blocked

Last Answer : Answer: a, b, c, d Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane. Ion channels are formed by membrane-spanning peptides that are arranged ... be blocked by ions or organic compounds that enter the channel, bind there, and occlude the pore

Description : An aqueous solution is always a solution in which the: w) solute is water x) solute is a salt y) solvent is a salt z) solvent is water 

Last Answer : ANSWER: Z -- SOLVENT IS WATER

Description : Which of the following is a strong electrolyte in aqueous solution. w) ammonia x) coffee y) Gatorade z) corn syrup

Last Answer : ANSWER: Y -- GATORADE

Description : Which of the following forms the weakest acid in aqueous solution? w) hydrogen fluoride x) hydrogen chloride y) hydrogen bromide z) hydrogen iodide

Last Answer : ANSWER: W -- HYDROGEN FLUORIDE

Description : Which of the following substances would be the best choice to neutralize aqueous Sodium Hydroxide? w) sodium carbonate x) silicon dioxide y) aluminum oxide z) phosphorus pentoxide

Last Answer : ANSWER: Z -- PHOSPHORUS PENTOXIDE

Description : What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3

Last Answer : ANSWER: Y -- 1

Description : An aqueous solution whose concentration effectivel matches the concentration of blood is said to be: w) isotopic x) isobaric y) isotonic z) isoelectronic

Last Answer : ANSWER: Y -- ISOTONIC

Description : The complete combustion of one mole of hydrogen produces: w) 1/2 mole H2O x) 1/2 mole H2O + 1/2 mole O3 y) 1 mole water z) 1 mole hydroxide ions

Last Answer : ANSWER: Y -- 1 MOLE WATER

Description : A net ionic equation does NOT show: w) electronic charges x) solid products (precipitates) y) spectator ions z) reacting species

Last Answer : ANSWER: Y -- SPECTATOR IONS

Description : Ammonia can be considered a Lewis base because it can donate: w) electrons x) protons y) hydronium ions z) hydroxide ions

Last Answer : ANSWER: A -- ELECTRONS

Description : Which of the following terms refers to the number of molecules or ions attached to a central metallic atom? w) coordination number x) connection number y) bonding number z) none of these

Last Answer : ANSWER: W -- COORDINATION NUMBER

Description : Which of the following molecules is polar? w) Iodine x) Carbon Dioxide y) Carbon Monoxide z) Chlorine

Last Answer : ANSWER: Y -- CARBON MONOXIDE 

Description : The bond most likely to be formed when two atoms differ SOMEWHAT in their tendency to attract electrons is: w) nonpolar ionic x) polar ionic y) polar covalent z) nonpolar covalent

Last Answer : ANSWER: Y -- POLAR COVALENT

Description : HCl is dissolved in solvent A; the solution is non-conducting towards an electric current. Solvent A must be: w) polar x) non-polar y) organic z) more acidic than HCl

Last Answer : ANSWER: X -- NON-POLAR