cannot do this question , please can someone help with an explanation:
Which of the following solid oxides would not
lower the pH when added to sodium
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- Thread Starter
- 15-05-2015 20:54
- 15-05-2015 22:21
What pH would 'sodium hydroxide solution' likely have?
What does 'lower the pH' mean?
What effect on the pH would each of the four have?
- 16-05-2015 13:35
SiO2 would not even react i think and Li2O would increase the pH so one of those two are correct. P4O10 and Al2O3 are acidic oxides which would indeed lower the pH. I would go with LiO2 because maybe SiO2 does react with concentrated NaOH.
- 16-05-2015 16:02
Li2O is basic, so would increase the pH.Last edited by Pigster; 16-05-2015 at 18:19.
- 17-05-2015 21:31
Li20 is an alkali so will not lower the pH
Si02 Does not React
P4010 is acidic and will increase the pH
Al203 is amphoteric and will act as an acid in this case lowering the pH