31. What is the percent by mass of a solution if 60. g
of acetic acid are added to 90. g of water?
(1) 20% (2) 30% (3) 40% (4) 67%

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball