the density of air at room temperature is 1.3 g/L at 0⁰C. what is the mass at the air in pounds in a room 4.0 m long, 3.0 m wide, and 2.5 m high?​

Explain that newton first law,second law and third law of motion?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize