The balanced chemical equation is :
Moles of 
,
Now, by given chemical equation , we can see 2 mole of react with 1 mole of 
.
So , 2.27 mole react with :
Mass of oxygen is :
Therefore, mass of oxygen in grams produced is 18.16 g.
Hence, this is the required solution.
Answer:
Say sorry, and then send them a gift.
Explanation:
Vas happenin!!
1 amu is the correct answer
Hope this helps
-Zayn Malik
Answer: D
Explanation: I got it wrong on my test :( and got this answer as correct.
PH scale is used to determine how acidic or basic a solution is.
pH can be calculated as follows;
by knowing the ph we can calculate pOH
pH + pOH = 14
pOH = 14 - 8.1
pOH = 5.9
pOH is used to calculate the hydroxide ion concentration
pOH = -log[OH⁻]
[OH⁻] = antilog(-pOH)
[OH⁻] = 1.26 x 10⁻⁶ M
therefore hydroxide ion concentration is 1.26 x 10⁻⁶ M
