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QUESTION 4
Theoretically, how much water would it take to dissolve a 150 mg sample of a compound whose solubility in water at 98°C is 3.0 g/100 ml water?
o 4.5 mL
• 5.0 mL
o 10. mL
• 2.0 mL
QUESTION 5
While obtaining a melting point temperature, what is a proper rate of temperature change during melting?
• 1°C/sec
° 5°C/min
1°C/min
• 1°C/5 sec
QUESTION 6
For a eutetic mixture of A and B, the eutetic composition would consist of which of the following?
o 50 % A and 50 % B.
• A eutetic mixture cannot exist with two different compounds.
. That composition of A and B that, together, has the lowest melting point.
• Almost all A and no B.
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