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CHM1011 - Chemistry I - S1 2025
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An aqueous solution has a hydronium ion (H3O+) concentration of 4.11x10-4 M. What is the pH of this solution? Quote your answer to three significant figures.
(If you are struggling with some of the maths in Chemistry there is a lot of help. See the maths hub on Moodle and talk to you TA or unit coordinator to find support.)
How many moles of CH3COOH (acetic acid) are required to neutralise 0.62 moles of NaOH (sodium hydroxide)?
(If you are struggling with some of the maths in Chemistry there is a lot of help. See the maths hub on Moodle and talk to you TA or unit coordinator to find support.)
How many moles of CH3COOH (acetic acid) are required to neutralise 0.27 moles of NaOH (sodium hydroxide)?
(If you are struggling with some of the maths in Chemistry there is a lot of help. See the maths hub on Moodle and talk to you TA or unit coordinator to find support.)
How many moles of NaOH (sodium hydroxide) are required to neutralise 0.69 moles of HCl (hydrochloric acid)?
(If you are struggling with some of the maths in Chemistry there is a lot of help. See the maths hub on Moodle and talk to you TA or unit coordinator to find support.)
An aqueous solution has a hydronium ion (H3O+) concentration of 3.99x10-3 M. What is the pH of this solution? Quote your answer to three significant figures.
(If you are struggling with some of the maths in Chemistry there is a lot of help. See the maths hub on Moodle and talk to you TA or unit coordinator to find support.)
Enter your result to 2 decimal places.