Ask Question
29 October, 07:47

A sample of oxygen gas (O2) has a volume of 7.51 L at a temperature of 19°C and a pressure of 1.38 atm. Calculate the moles of O2 molecules present in this gas sample. A. 0.217 mol B. 0.866 mol C. 6.65 mol D. 0.433 mol = n

+4
Answers (1)
  1. 29 October, 07:59
    0
    The moles of O₂ which are present in the sample are 0.433. (option D)

    Explanation:

    We should apply the Ideal Gases Law, to solve this:

    P. V = n. R. T

    1.38 atm. 7.51L = n. 0.082. 292K

    (1.38 atm. 7.51L) / (0.082. 292K) = n

    0.433 moles = n
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A sample of oxygen gas (O2) has a volume of 7.51 L at a temperature of 19°C and a pressure of 1.38 atm. Calculate the moles of O2 molecules ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers