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Explain how a buffer solution resists the pH change when an acid or alkali is added.

HA <----> H+ + OH-Acid:Adding an acid increases the concentration of H+ ions as acids are proton donors. These H+ ions react with the conjugate base, A-, to form HA and thus shift the equilibrium po...

AF
10249 Views

Use Pythagoras theorem to work out the hypotenuse when the adjacent length of a triangle is 3 and the opposite side is 4.

using the Pythagoras formula: a^2 + b^2 = c^2 the longest measurement is always the hypotenuse due to the orientation of a triangle and so c is the hypotenuse leaving the a and b to be the two measuremen...

SS
Answered by Saif S. Maths tutor
2081 Views

Outline and briefly evaluate locus of control as an explanation of resistance to social influence.

Locus of control was a concept put forward by Rotter in 1966 that describes an element of our personality. It is the extent to which we feel in control and take responsible for the things around us that h...

IN
Answered by Isobel N. Psychology tutor
43869 Views

Discuss how cholesterol is transported in the body, and describe these transport molecules.

Cholesterol, like other lipids, is insoluble in water. Therefore, it is transported in the blood in lipoproteins. These are spheres of lipid and protein, and are made in the liver. There are two types of ...

NC
Answered by Nabeelah C. Biology tutor
3604 Views

Write a critical apprecaition for Horcale Warpole's Castle of Otranto

From the very beginning this extract sets itself up fit seamlessly with other typical gothic novels through its depiction of intense overpowering emotions that seem to be almost too strong a force for the...

LC
Answered by Leah C. English tutor
2112 Views

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