In this question you should assume methane behaves as an ideal gas. The gas laws can be summarised in the ideal gas equation below. pV = nRT
The volume of a sample of methane is measured at a temperature of 60°C and a pressure of
103 kPa. The volume measured is 5.37 × 10–3 m3.
What is the mass of the sample of methane, given to two significant figures? A 0.0032g B 0.018g C 3.2g D 18g

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

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.