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Explain what would happen to the pH of a solution of aqueous hydrochloric acid if you add water.

pH is a measure of the concentration of H+ ions contained within a given volume of a solution. Adding water, without increasing the amount of hydrochloric acid particles within the solution, increases the vo...
MR
5906 Views

Integrate 2x^4 - 4/sqrt(x) + 3 dx

First we will simplify 4/sqrt(x) so it is easier to integrate.sqrt(x) is equal to x 1/2 , therefore 4/sqrt(x) = 4/x 1/2 .We bring up x 1/2 so 4/x 1/2 becomes 4x -1/2 .So now we will integrate the simplified ...
MA
Answered by Maleehah A. • Maths tutor
8511 Views

2x + 5y =33 x+3y = 19

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SH
Answered by Sen H. • Maths tutor
3595 Views

There are green and red counters in a bag. There are 30 counters in total. The ratio of red to green counters is 1 : 5. There are 5 red counters in the bag. How many green counters are in the bag?

There are 30 counters in total in the bag. If we visualise the ratio as there being x red counters and 5x green counters, we find that there are 6x counters in total in the bag, and thus we can conclude that...
JS
Answered by Jack S. • Maths tutor
7551 Views

Differentiate Y = 4X/(X^2+5) and give dy/dx in its simplest form

4(5-X^2)/(X^2+5)^2
MS
Answered by Mohamed S. • Maths tutor
4400 Views