Calculate the Ph when 15 ml of 0. 26 m HCl is titrated with 45 ml of 0. 10 m NaOH.
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Answer:
Mass of copper oxide: 10g
Mass of copper: 8.882g
Mass of oxygen: 1.118g
<u> Cu</u> <u>O</u>
8.882 1.118
Divide by 8.882÷63.5 1.118÷16
0.14 0.07
Divide by the lowest number 0.14/0.07 0.07/0.07
2 1
Check the ratio now, Cu has 2 atoms and O has 1 atom .
The formula is