3.9 What would be the saturation concentration (mole/L) of oxygen (O2) in a river in winter when the air temperature is 0 C if the Henry’s law constant at this temperature is 2:28 10␣3 mole=L-atm? What would the answer be in units of mg/L?

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

State the formula for density in words and mathematical symbols

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit