Clausius-clapeyron equation question

methylamine has a vapor pressure of 344 torr at -25∘c and a boiling point of -6.4∘c. find δhvap for methylamine.

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom