A 200.0 g piece of metal at 19.0°C is added to 80.0 g of water at 70.0°C in a styrofoam cup (for insulation). The temperature of the water cooled to 50.0°C. Calculate the specific heat of the metal, assuming ΔTmetal=+31.0°C (DIFFERENT THAN PREVIOUS PROBLEMS) and the metal absorbed 6688 J of heat (DIFFERENT THAN PREVIOUS PROBLEMS).

What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.

Plz a person walks 1 mile every day for exercise, leaving her front porch at 9 am and returning to her front porch at 9: 25 am what was the total displacement of her daily walk a. 1 mile b. 0 c. 25 min d. none of the above