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How do I calculate the percentage by mass of a metal within an impure substance?

For this question we will look at Sodium Sulphite (Na2SO3) and its titration against Potassium Permanganate (KMnO4). This requires acidic conditions.

...
SV
14284 Views

Passé Composé/Adverb endings (é/ée etc.)

In French, a lot of people get confused with when to put 'é' or 'ée' at the end of either a passé composé or as an adverb:

'elle a décidé

LM
Answered by Laura M. French tutor
9570 Views

What is the basis of an NMR spectrum?

Nuclear Magnetic Resonance (NMR) is a spectroscopic technique used to detect certain nuclei in a molecule.

1H and 13C are the most commonly identified nuclei , howev...

JT
Answered by Joanna T. Chemistry tutor
3907 Views

How do I differentiate y = ln(sin(3x))?

So we initially have the relationship y = ln(sin(3x)). As the left hand side is a function of the variable y and the right hand side is a function of the variable x i.e they are implicitly related, we ...

IW
Answered by Ifan W. Maths tutor
20294 Views

What is the difference between aerobic and anaerobic respiration?

The main difference between aerobic and anaerobic respiration is that anaerobic does not require oxygen in order to provide energy whereas aerobic needs oxygen to supply the body with ATP energy. Howev...

AJ
13134 Views

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