What is the mass of 4.8 moles of oxygen molecules? Type only NUMERIC ANSWER in standard decimal format with no units (and in correct SF) to earn computer credit. You must show complete dimensional analysis with all units properly labelled, if it comes as a short answer on your test.
Question
What is the mass of 4.8 moles of oxygen molecules? Type only NUMERIC ANSWER in standard decimal format with no units (and in correct SF) to earn computer credit. You must show complete dimensional analysis with all units properly labelled, if it comes as a short answer on your test.
Solution
First, we need to know the molar mass of oxygen. The molar mass of an oxygen atom is approximately 16 grams/mole. However, an oxygen molecule (O2) consists of two oxygen atoms, so the molar mass of an oxygen molecule is 2*16 = 32 grams/mole.
Now, we can use the given number of moles and the molar mass to find the mass. The formula to calculate the mass when the number of moles and molar mass are given is:
Mass = Number of moles * Molar mass
So, the mass of 4.8 moles of oxygen molecules is:
Mass = 4.8 moles * 32 grams/mole = 153.6 grams
So, the mass of 4.8 moles of oxygen molecules is 153.6 grams.
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