Pepsin is an enzyme involved in the process of digestion. Its molar mass is about 3.50 × 104 g/mol. What is the osmotic pressure in mm Hg at 30°C of a 0.500-g sample of pepsin in 60.0 mL of an aqueous solution?

What forms when chemical reactions combine pollution with sunlight?

What reaction is taking place? 02 + c3h8 = h20 + co2

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size