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24.3cm^3 of 0.02moldm-3 KMnO4 reacted with 20cm^3 of iron (II) solution. Calculate the molarity of the iron (II) solution.

Firstly calcuate the moles of KMnO4 by using the equation n=MV/1000 where n=moles M=molarity (moldm^-3) and V= volume (cm³). As the question gives the molarity and volume of KMnO4 you...

Answered by Anya B. • Chemistry tutor

11581 Views

A bacterial infection that cannot be treated with one sort of penicillin can be treated with a different sort. Use your knowledge of enzyme action to explain why the different sort of penicillin is effective in treating the infection.

Penicillin inhibits an enzyme that forms cross links in bacterial cell walls halting bacterial reproduction. Different penicillins have different shapes or structures. The penicillin that is not effective...

Answered by Georgia D. • Biology tutor

6349 Views

Given a graph with n nodes and m edges, every edge has a passing cost that can be negative, find the minimum distance between node 1 and every other node

We will use the Bellman-Ford algorithm to compute the minimum distance between that start node and every other one, by passing through each edge for a maximum of n times and "relaxing the edge",...

Answered by Victor S. • Computing tutor

4403 Views

Outline Asch’s findings in relation to two variables affecting conformity. Briefly explain two limitations of Asch’s conformity research. [8 marks]

Read over what the question is asking you carefully and look at a number of marks the question is worth. This question is worth 8 marks. You can get 4 marks from the first part of the question ‘Outline As...

Answered by Scott M. • Psychology tutor

10990 Views

To what extent do you agree with the view that the novel is a total condemnation of transgression? (Frankenstein by Mary Shelly)

You might read this question and instantly want to make a start on your exam piece. DON’T! Make sure to read the question fully, twice. It’s important to make sure you understand what’s being asked of you...

Answered by Scott M. • English Literature tutor

7157 Views