There are many ways that you can tell whether a chemical change has occurred. Which of the following is NOT a sign of chemical c
2 answers:
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Answer: 55.84L
Explanation: Please see attachment for explanation.
Answer:
2.85moles of oxygen gas
Explanation:
Given parameters:
Volume of oxygen gas = 63.8L
Unknown:
Number of moles = ?
Solution:
We assume that the gas is under standard temperature and pressure. To find the number of moles, use the expression below:
1 mole of a gas at STP occupies a volume of 22.4L
So;
63.8L of oxygen gas will take up a volume of
= 2.85moles of oxygen gas