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[OH-] = 0.0262 mol dm-3[H+] = (Kw/[OH-]) = 2.93 x 10−15 / 0.0262 (= 1.118 x 10−13) pH = (− log (1.118 x 10−13) = 12.9514 = 12.95 

I distinctly remember my A-Level French teacher repeatedly highlighting mistakes such as the one below in my essays:La fille que j'ai vu à côté du restaurant, elle pleurait.In French when ...

Learning a foreign language is half about learning the grammar and the verbs, and half about learning some vocabulary. The first part is usually not the easiest or the funniest part but it is essential an...

We know that the perimeter of the triangle is 20cm and we also know the value of two of the sides of the triangle, AB=7cm and BC=4cm. We can work out the length of the third side (AC) by subtracting the k...

The AQA framework of AO3 (‘Demonstrate understanding of the significance and influence of the contexts in which literary texts are written and received.’) is particularly important for this question and c...