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Write a 90 word summary of the following passage.

I can use the example exam questions from a revision guide to demonstrate the most effective way to go about answering this question. I would offer my tips on reading the question effectively to show how ...

Answered by • French tutor

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A 25 cm3 sample of an unknown concentration of sulfuric acid was titrated against 0.1 mol dm-3 sodium hydroxide. The average titre was 20 cm3. Calculate the concentration of the sulfuric acid.

Balanced equation: H₂SO₄ + 2NaOH → 2H₂O + Na₂SO₄moles of NaOH = c x v = 0.1 mol dm^-3 x (20/1000) dm³ = 0.002 molStoichiometry: ...

Answered by Joseph K. • Chemistry tutor

8567 Views

State and explain whether NaCl and Mg can conduct electricity in both the solid and molten states.

NaCl cannot conduct electricity in the solid state as the ions are held in an ionic lattice and therefore are not free to conduct. NaCl can conduct in the melt as the ions become mobile and therefore are ...

Answered by Joseph K. • Chemistry tutor

4830 Views

How is division presented in the opening scene of King Lear

R.A Foakes has argued that 'King Lear' is a play about a 'divided kingdom'. Indeed, division is presented throughout the Jacobean Tragedy through the physical divide of pre-christian England and the crack...

Answered by Henry B. • English Literature tutor

5517 Views

How does atherosclerosis form?

Atherosclerosis occurs as a result of damage to the endothelial lining of blood vessels. Once the damage has occurred, the body induces an inflammatory response, causing ...

Answered by Daniella G. • Biology tutor

3297 Views