Chemistry, 26.06.2020 16:01 snicklegirlp4isqr

Olympic cyclists fill their tires with helium to make them lighter. Calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. Assume the volume of the tire is 855 mL that is filled with a total pressure of 125 psi, and that the temperature is 25oC. Also, assume an average molar mass for air of 28.8 g/mol.

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 13:00

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Answers: 1

Answer

Chemistry, 22.06.2019 19:00

Which is the solubility product expression for caf2(s)? [ca2+]/[f–]2 [ca2+][f2–] [ca]+[f]2 [ca2+][f–]2

Answers: 3

Answer

Chemistry, 23.06.2019 01:30

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.

Answers: 1

Answer

Chemistry, 23.06.2019 02:30

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .

Answers: 3

Answer

You know the right answer?

Olympic cyclists fill their tires with helium to make them lighter. Calculate the mass of air in an...

Questions