TEST BANK FOR ORGANIC CHEMISTRY /chapter 10 /13
graded (A) year 2024 /2025
The O-H bond in water is polar because - ANSWER-oxygen is much more electronegative than hydrogen
A hydrogen bond is - ANSWER-an attraction between a hydrogen atom attached to N,O, or F and an N,O,
or F atom on another molecule
hydrogen bonds are a major factor in the structure of - ANSWER-DNA
in a solution, the solvent - ANSWER-can be a solid, liquid or gas
molecule that forms hydrogen bonds - ANSWER-NH3
a solution is prepared by dissolving 2 g of KCl in 100g of H2O. in this solution, H2O is the - ANSWER-
solvent
oil does not dissolve in water because - ANSWER-oil is non polar
when KCl dissolves in water - ANSWER-the K+ ions are attracted to the partially negative oxygen atoms
of the water molecule
water is a polar solvent and hexane (C6H14) is a nonpolar solvent. which describes the solubility of the
solute - ANSWER-NaHCO3, soluble in water
in water, a substance that ionizes completely in solution is called a - ANSWER-strong electrolyte
in water, a substance that partially ionizes in solution is called a - ANSWER-weak electrolyte
, an equivalent is - ANSWER-the amount of ion that carries 1 mole of electrical charge
how many equivalents are present in 5.0 g of Al3+ - ANSWER-0.56Eq
how many equivalents are present in 5.0 moles of Al3+ - ANSWER-15Eq
when some of the sugar added to iced tea remains undissolved at the bottom of the glass, the solution
is - ANSWER-saturated
an increase in the temperature of a solution usually - ANSWER-increases the solubility of a solid solute in
the solution
which compound NOT soluble in water - ANSWER-PbS
which compound NOT soluble in water(Q2) - ANSWER-BaSO4
which compound will be soluble in water - ANSWER-LiCl
which compound will be soluble in water(Q2) - ANSWER-NH4Cl
which compound insoluble in water - ANSWER-CaCO3
when solutions of NaCl and AgNO3 are mixed - ANSWER-a precipitate of AgCl forms
according to henrys law, the solubility of a gas in a liquid - ANSWER-increases as the gas pressure above
the liquid increases
the mass percent concentration refers to - ANSWER-grams of solute in 100 g of solution
graded (A) year 2024 /2025
The O-H bond in water is polar because - ANSWER-oxygen is much more electronegative than hydrogen
A hydrogen bond is - ANSWER-an attraction between a hydrogen atom attached to N,O, or F and an N,O,
or F atom on another molecule
hydrogen bonds are a major factor in the structure of - ANSWER-DNA
in a solution, the solvent - ANSWER-can be a solid, liquid or gas
molecule that forms hydrogen bonds - ANSWER-NH3
a solution is prepared by dissolving 2 g of KCl in 100g of H2O. in this solution, H2O is the - ANSWER-
solvent
oil does not dissolve in water because - ANSWER-oil is non polar
when KCl dissolves in water - ANSWER-the K+ ions are attracted to the partially negative oxygen atoms
of the water molecule
water is a polar solvent and hexane (C6H14) is a nonpolar solvent. which describes the solubility of the
solute - ANSWER-NaHCO3, soluble in water
in water, a substance that ionizes completely in solution is called a - ANSWER-strong electrolyte
in water, a substance that partially ionizes in solution is called a - ANSWER-weak electrolyte
, an equivalent is - ANSWER-the amount of ion that carries 1 mole of electrical charge
how many equivalents are present in 5.0 g of Al3+ - ANSWER-0.56Eq
how many equivalents are present in 5.0 moles of Al3+ - ANSWER-15Eq
when some of the sugar added to iced tea remains undissolved at the bottom of the glass, the solution
is - ANSWER-saturated
an increase in the temperature of a solution usually - ANSWER-increases the solubility of a solid solute in
the solution
which compound NOT soluble in water - ANSWER-PbS
which compound NOT soluble in water(Q2) - ANSWER-BaSO4
which compound will be soluble in water - ANSWER-LiCl
which compound will be soluble in water(Q2) - ANSWER-NH4Cl
which compound insoluble in water - ANSWER-CaCO3
when solutions of NaCl and AgNO3 are mixed - ANSWER-a precipitate of AgCl forms
according to henrys law, the solubility of a gas in a liquid - ANSWER-increases as the gas pressure above
the liquid increases
the mass percent concentration refers to - ANSWER-grams of solute in 100 g of solution
