Top answers

What is the end point in a titration?

During a titration, an acid is added drop by drop into an alkaline solution and the pH decreases. End point is the point at which the alkaline solution has become neutral, that is pH 7. You can use an indica...
AY
Answered by Ashley Y. • Chemistry tutor
22710 Views

The velocity of a particle is given by the equation v= 4t+cos4t where t is the time in seconds and v is the velocity in m s ^-1. Find the time t when the particle is no longer accelerating for the interval 0≤t≤2.

This problem tests two key sub-topics in calculus, kinematics and the chain rule. Firstly, you must realise that the derivative of a velocity function will give you the acceleration function. So by finding t...
MB
Answered by Marc B. • Maths tutor
6907 Views

What is the Lowry and Bronsted definition of acids and bases?

Acids are defined as proton donors and bases are defined as proton acceptors.
AY
Answered by Ashley Y. • Chemistry tutor
3499 Views

Find the points at which the equation y = x^2 - 12x + 35 intersects the x-axis.

To find the points at which an equation intersects the x-axis, we first need to factorise the equation to be able to find the solutions. To do this, we consider the general form of a quadratic equation ax^2 ...
SH
Answered by Sam H. • Maths tutor
6785 Views

What do we mean by latent heat?

When heating a substance, the particles gain energy. As you heat a solid, it eventually changes to a liquid and if you continue to add more heat, it will eventually turn into a gas. When a solid turns into a...
ML
Answered by Melinda L. • Science tutor
6596 Views