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-1 votes
1 answer
2k views

Finding the molarity of an acid in a titration

I was doing a question that asks the molarity of a 10 mL of tartaric acid that is titrated to phenolphthalein endpoint with 20 mL of 1.0 M NaOH. I worked it out by equating the molarity of the NaOH ...
Fitsum Ayalew's user avatar
0 votes
1 answer
6k views

How to calculate the pH of a propanoate buffer after addition of sodium hydroxide?

I've calculated the pH of the buffer solution, as seen. The question I'm referring to is part d), which asks: 'Calculate the pH of the solution after 0.01 mols of NaOH are added to 500$cm^3$ of the ...
Michael Harding's user avatar
0 votes
2 answers
2k views

Which of the following elements forms a water-soluble, alkaline oxide?

An element burns in oxygen to form a solid oxide which dissolves in water. The pH of the resulting solution is greater than seven. Which one of the following could the element be? A. sulphur B. ...
Adam's user avatar
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