Chemistry Questions
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What is the partial pressure (in mm Hg) of neon in a 4.00 L vessel that contains 0.838 mol of methane, 0.184 mol of ethane, and 0.755 mol of neon at a total pressure of 928 mm Hg?
The rms speed of methane molecules at 45.0 °C is ________ m/sec.
Acids have a PH _____ than 7 and bases have a PH _____ than 7
If a salt has the conjugate acid of a weak base, the salt will be
If a salt has the conjugate base of a weak acid, the salt will be
If a salt contains conjugates of strong acids or bases, then the salt is
amino acid configurations are often designated as
if a cation is small, highly charged. and the anion has more oxygen, it is more____
Acid-Base reactions favor the stronger side's direction, so if K>1
contains two or more substances that are not bonded chemically
Very unstable with only one valence electron: react violently in water and are never found in nature.
cannot be broken down into simpler substances
keeps many of the same properties as its original components
The effusion rate of a gas is proportional to the square root of its molar mass.
Can exist as either atoms or molecules
Contain two or more different substances that are physically mixed but not chemically combined
7) Two deviations of real gases from ideal gases which are treated in the van der Waals equation are finite molecular volume and non-zero molecular attractions.
something that can be separated physically
graft and block copolymers may have ____ properties that are not ___ to those of corresponding homopolymers
Kinetic-molecular theory assumes that attractive and repulsive forces between gas particles are stronger than those between gas particles and container walls.=