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What is a titration reaction in acid-base chemistry?

A titration reaction is used to calculate the conentration of an acid or alkali. The two solutions are combined, one of known and one of unknown concentration. When combined the hydrogen ions from the acid a...
HS
Answered by Hatem S. • Chemistry tutor
3581 Views

Solve algabraically: 6a+b=16 and 5a-2b=19

To answer this we want to split up the 'a' parts and 'b' parts of the question and answer them seperately because we can't answer the question with two letters. We can change one equation to b=16-6a and now ...
AS
Answered by Anna S. • Maths tutor
5746 Views

In Lady Macbeth's first speech, how does Shakespeare present ambition? How does he present ambition in the play as a whole?

In this speech, Lady Macbeth is reading a letter from her husband in which he tells her what has happened with the witches. The audience already know all that has happened, so rather than focussing on the ac...
CV
Answered by Charlotte V. • English tutor
20615 Views

Solve the following simultaneous equation: 1) 2x=y-5, 2) 2y^2=4x^2+4x-15

The most instinctual method one would go by is to rearrange the terms so that one side of the equation will be equal to either x,y, or zero. In this case to avoid fractions it may be best to rearrange the eq...
KL
Answered by King-Ting L. • Maths tutor
3949 Views

You are making a list of the different ways you could travel in Germany. Make a list in German of four more types of transport. Example: Straßenbahn

Das Fahrrad, der Zug, das Schiff, die U-Bahn
PC
Answered by Petra C. • German tutor
2118 Views