Chemistry, 06.03.2020 21:46, jadenwilsan
A new substance developed in a laboratory has the following properties: normal melting point, 83.7°C; normal boiling point, 177°C; triple point, 200 torr and 38.6°C.
a. sketch the approximate phase diagram and label the solid, liquid and gaseous phases and the solid-liquid, liquid-gas and solid-gas phase boundaries.
b. sketch an approximate heating curve for a sample at constant temp, beginning at 500 tor and 25°C and ending at 200°C
c. what is the vapor pressure of the solid at 83.7°C?
d. which is the denser phase, solid or liquid? explain
Answers: 2
Chemistry, 21.06.2019 23:30, ashleyjaslin
Calculate the expected ph values of the buffer systems from the experiments (a, b,c, d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.
Answers: 2
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