AmyTT

If f(x) = x^2 + 2x − 8 and g(x) = 2x − 6, find the following function. f ∘ g

a) Which is the greater speed, that of a bullet fired from a high powered M-16 rifle (2180 mi/hr) or the root mean square speed of H2 molecules at 25 degrees Celsius. I completed part a) however I don't know how to answer part b) b) At what temperature ar...

Use the Van der Waal equation to determine the pressure of 200 moles of CO2(g) in a 32.6L vessel at 34 degrees Celsius. (a= 3.64 L^2 atm mol^-2, b=0.04267 L mol^-1) I got the answer 9.24 atm but the answer is 72.8 atm. I don't know what I did wrong.

Consider reacting 100.0mg magnesium with 20.0mL of 1.0M hydrochloric acid. Which reactant is the limiting reagent? What is the theoretical yield of hydrogen? Express answers in millimoles. Can you please describe the steps taken in order to find the answe...

Consider 30.0 mL of water that has absorbed 1540 J of heat from a chemical reaction. What is the change in temperature that should be observed in degrees Celsius?