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In this question, I thoguht that since acetic acid is a weak acid, it partially ionises in water and will not produce 0.100M of <H+>, so that it would require less than 23.4ml of NaOH to neutralise. But the answer turns out to be B. Could someone pls explain? Thanks in advance.

Is it possible to quickly predict the rough shape of these graphs without finding the derivatives? or are there no tricks to curve sketching?

Could someone explain how this motor in the image works, thanks !

Could someone explain why the speeds of the ship relative to each other do not add up to c (0.5 c + 0.5 c = 1c) and also if there is a formula to find the value of the actual relative speed. Thanks

Could someone pls give an example and also explain how the hydrolysis process works in part b, thanks

Hey guys, please recommend some good maths websites for self learning 3 u maths (aside from khan academy) My teacher couldn't explain the concepts in class and Im trying to relearn some topics in this holiday.:confused: Thanks !:cool:

Please explain how to do this, thanks

Please help !

What should I mention in my response to get those full marks ? Any tips appreciated, thanks !

What are some advantages and disadvantages of AC and DC motors?

What would be a suitable sketch of the voltage - time graph when a magnet is dropped into a coil, how would the shape change if the south pole is inserted instead

Could someone explain how to do this, and the underlying principles. Thanks

I am still struggling to understand the concept of EMF. So my understanding of EMF is that it will be produced when there is a relative motion between the magnet and the coil, and that this electromotive force is measured in volts. But I really dont understand how the relative motion creates...

Thank you so much, I understand it now !

Could someone please explain the differences among 'experimental, instrumental, systemic and random errors? Your help is appreciated :)

Why are indicators often weak acids ? also why do indicators change colour when in contact with acids or bases ?

For titration between a strong acid and a strong base, is the net ionic always H+(aq). + OH - (aq) > H2O (l) or there are exceptions, considering when salts are formed, not all of them are soluble in aqueous form eg. carbonates bases

Eg. lim as x approaches 0 for sinx over x

Thank you so much!!!!! I understand it now :cool:

What are ICE table used for and when do we use them ?