2. Suppose an angle

Find the reference angle for

a. Write the equation of a sine or cosine function to describe the graph.  b. Check your work by plotting the function you found on Graphing Paper Page 2, the bottom graph on the page. Show how you found the and bounds for your box and include the box around the principal interval of your function.

Find an angle coterminal with

The strongest intermolecular interactions in a mixture between CH3-O-CH3 (l) and H2O (l) molecules arise from

An aqueous solution has a normal boiling point of 102.0°C. What is the freezing point of this solution? For water: Kb is 0.51°C/m and Kf = 1.86°C/m, the boiling point is 100.0oC, and the freezing point is 0.0oC.  Show your work to receive credit.

Use the diagram below to answer the following questions. Melting occurs along the

Which of the following molecules does not have a dipole forces?

The surface tension of CH3OH will be less than CH3 -CO-NH2True False

The plots below represent partial phase diagram representing vapor pressure vs. temperature curves for diethyl ether (CH3CH2-O- CH3CH2), ethanol (CH3CH2-OH), liquid mercury (Mercury is the only liquid metal), and water, not necessarily in that order.   Answer the following questions based on the diagram:  a) which is the most likely vapor pressure vs. temperature curve for diethyl ether (CH3CH2-O- CH2CH3)? b) Arrange the four compounds in the order of increasing boiling points. Use the names or the formulas to show your answer.