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A solution of acetic acid and sodium acetate was prepared, by dissolving 4.1 g of sodium acetate in 750 cm^3 of 0.085 mol/dm^3 acetic acid, at 25 degrees. 10 Cm^3 of 2 mol/dm^3 HCl was added. Ka is 1.76*10^-5, calculate and explain the change in pH

The first thing to do in any calculations question is to list out what you have, and what the question is asking you. In this case, the question wants pH, which is -log[H+]. So what we need is [H+]. We ha...

AM
Answered by Alex M. Chemistry tutor
3475 Views

What are higher order functions in functional programming? How does the 'map' function work and why is it a higher order function?

Higher order functions either have one or more arguments that are themselves functions, return a function as their result, or both. Argu...

JC
Answered by Joseph C. Computing tutor
2168 Views

Describe the similarities and differences between haemoglobin and collagen.

Similarities:Both have a quaternary structure (consisting of more than one polypeptide).Both are found in animals (haemoglobin is found in blood and collagen is found in the muscles, skin, bones and tend...

SM
Answered by Shannon M. Biology tutor
38066 Views

Explain the resistance to bromination of benzene in comparison to phenol.

In phenol, one of the lone pairs of electrons in a p-orbital of the oxygen atom in the -OH group overlaps with the delocalised ring of electrons in the ring. This lone pair is partially d...

CH
Answered by Cerys H. Chemistry tutor
4301 Views

differentiate y=8x^3 - 4*x^(1/2) + (3x^2 + 2)/x

y= 24x^2 - 2x^(-1/2) + 3 - 2x^-2

AM
Answered by Abubakar M. Maths tutor
6508 Views

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