A steel calorimeter has a volume of 75.0 mL and is charged with Oxygen gas to apressure of 255 kPa at 22.5°C. What is the amount of

3 answers
Question:

A steel calorimeter has a volume of 75.0 mL and is charged with Oxygen gas to a pressure of 255 kPa at 22.5°C. What is the amount of Oxygen molecules
present

Answers

echo2155 deleted my answer now

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

pv=nrt

explanation:

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