Question

What observed rotation is expected when a 1.44 M solution of (R)-2-butanol is mixed with an equal volume of a 0.720 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? The specific rotation of (R)-2-butanol is �13.9 degrees mL g�1 dm�1.

Answer #1

What observed rotation is expected when a 1.02 M solution of
(R)-2-butanol is mixed with an equal volume of a 0.510 M solution
of racemic 2-butanol, and the resulting solution is analyzed in a
sample container that is 1 dm long? The specific rotation of
(R)-2-butanol is –13.9 degrees mL g–1 dm–1.

What observed rotation is expected when a 1.68 M solution of
(R)-2-butanol is mixed with an equal volume of a 0.840 M solution
of racemic 2-butanol, and the resulting solution is analyzed in a
sample container that is 1 dm long? The specific rotation of
(R)-2-butanol is –13.9 degrees mL g–1 dm–1.

What observed rotation is expected when a 1.36 M solution of
(R)-2-butanol is mixed with an equal volume of a 0.680 M solution
of racemic 2-butanol, and the resulting solution is analyzed in a
sample container that is 1 dm long? The specific rotation of
(R)-2-butanol is –13.9 degrees mL g–1 dm–1.

What observed rotation is expected when a 1.08M solution of
(R)-2-butanol is mixed with an equal volume of a .540M solution of
racemic 2-butanol, and the resulting solution is analyzed in a
sample container that is 1dm long? The specific rotation of (R)-2
butanol is -13.9 degrees mL/g dm.

The specific rotation, [α]D, for
(-)-2-butanol is +14. What is the
observed rotation for a solution of 3.3 g of
(-)-2-butanol in 10 mL of water in a sample tube
having a pathlength of 10 cm?
degrees .
The observed rotation of a solution of 1.7 g of
a compound in 10 mL of water is +5.8 degrees. If
the pathlength is 10 cm, what is the specific rotation of the
compound?
degrees

1a.) The specific rotation, [α]D, for
(-)-pseudoephedrine is -52. What
is the observed rotation for a solution of 0.70 g
of (-)-pseudoephedrine in 10 mL of water in a
sample tube having a pathlength of 10 cm?
The observed rotation of a solution of 0.75 g
of a compound in 10 mL of water is -4.6 degrees.
If the pathlength is 10 cm, what is the specific rotation of the
compound?
1b.) The specific rotation, [α]D, for
(-)-2-butanol is +14....

1) The specific rotation, [α]D, for
sucrose is +67. What is the
observed rotation for a solution of 0.50 g of
sucrose in 10 mL of water in a sample tube having
a pathlength of 10 cm? Answer in degrees.
2) The observed rotation of a solution of 1.3 g
of a compound in 10 mL of water is +11 degrees. If
the pathlength is 10 cm, what is the specific rotation of the
compound?

1.) The specific rotation, [?]D, for
sucrose is +67. What is the
observed rotation for a solution of 0.70 g of
sucrose in 10 mL of water in a sample tube having
a pathlength of 10 cm?
___degrees .
2.) The observed rotation of a solution of 1.7
g of a compound in 10 mL of water is +13 degrees.
If the pathlength is 10 cm, what is the specific rotation of the
compound?

The optical rotation of the S enantiomer of compound M is +40
deg x g^-1 x mL x dm^-1. what percentage of a mixture of the R and
S enantiomers is composed of the S enantiomer if a sample with a
concentration of 1 g/mL has an observed optical rotation of 10
degrees counterclockwise in a polarimetry cell that is 10cm

300 mL of a 0.694 M HCl aqueous solution is mixed with 300 mL of
0.347 M Ba(OH)2 aqueous solution in a coffee-cup calorimeter. Both
the solutions have an initial temperature of 28.7 °C. Calculate the
final temperature of the resulting solution, given the following
information:
H+(aq) + OH- (aq) ? H2O(?) ? ? ? ?Hrxn = -56.2 kJ/mol
Assume that volumes can be added, that the density of the solution
is the same as that of water (1.00 g/mL),...

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