A syringe containing 1.57 mL of oxygen gas is cooled from 98.4 ∘C to 0.1 ∘C. What is the final volume Vf of oxygen gas?

Oh nskskakaaka

Ijust took the quiz. their is no coefficient needed. : )

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.