Search results

Re:  gather, process and present information to interpret secondary data from AAS me Basically they want you to know how to use a standard curve if they give one to you to calculate concentrations based on absorbance.

A nice way would be to use logarithmic differentiation. For example let y = uv, where u and v are functions of x. Then, y = uv ln y = ln (uv) ln y = ln u + ln v (1/y)*y' = (1/u)*u' + (1/v)*v' y' = y[(1/u)*u' + (1/v)*v'] y' = uv[(1/u)*u' + (1/v)*v'] y' = u'v + uv' which is the product...

http://community.boredofstudies.org/265/ideas-implementation/115410/cooper-pairs.html May help Futhermore: http://en.wikipedia.org/wiki/Bcs_theory

Its destructive

They are in the "success one" books. You can usually find it in your school and/or local library. If you cannot find it, you can buy the book...

Using a pH meter to calculate pH is non-destructive.

differentiate as you would normally, taking a and b as constants so dy/dx = 2a(x+b) =m and since the gradient of the tangent is 2 at (4,8) then subbing this into the above equation gives: m= 2 so 2 = 2a(4+b) or a(b+4) = 1 Secondly you know that the point (4, 8) lies on the parabola. Sub x =...

How does one become a maths teacher? Do they just get any person with an education degree and a year of maths at uni to teach 4 unit?

You'll do fine :)

Don't complain too much about teachers, cause next year you will be expected to learn yourself at uni independently :p

Because your doing well in maths I'd say you can get 90 + easily so long as your other subjects are not too bad. (i.e. 70% or so raw marks). Try to improve your chemistry mark though. HSC Chem is easy, if you devote time to it you can score high marks (just like for maths).

Hydrocarbons are organic compounds. Inorganic compounds are those that you are familiar with from year 7, like metal compounds and oxides etc. Google says inroganic compounds are: "Chemicals that do not contain carbon, which is usually associated with life processes; for example, metals are...

Increased temperatures increase the rate of any reaction. However reduced oxygen levels reduce corrosion, because oxygen is required for corrosion to occur.It's not a contradiction because the temperature affects the reaction in two distinct ways. I wouldn't be surprised however if the...

Basically as temperatures increase the level of oxygen able to dissolve in the water decreases, hence while higher temperatures increase the rate of reaction (due to reaction kinetics), due to lower oxygen levels, corrosion is decreased. Think of it like in the Haber Process, where you need a...

IUPAC just stands for International union of pure and applied chemistry. Its the standard that we follow when we name chemical compounds. They set the rules (naming rules, or nomenclature) that we use in chemistry.

(1) More reactive elements are likely to react with their environments, for example they may react with oxygen to form oxides. But unreactive elements won't react with the atmosphere or the surrounding environment so they are likely to be found as elements which are uncombined. (2) You could...

No subject is 'capped'. I believe thats what happened in the old HSC though (pre 2001), but certainly it doesn't occur in the new HSC. Having said that, well done :)

For the acid, [H+] = 10^-1 mol/L = 0.1M HCl They are asking for complete neutralisation with no excess. Moles of NaOH = n = c*V = 0.20*5000 = 1000 moles NaOH = 1000 moles OH- So to neutralise this amount, we need V=1000/0.1 = 10000L HCL

Filter the ester more times, Cary out reflux procedure for a longer period of time.

S1 BIOS1201 Molecules, Cells and Genes.......86 HD S1 CHEM1011 Fundamentals of Chem 1A..........88 HD S1 MATH1131 Mathematics 1A...................87 HD S1 PHYS1131 Higher Physics 1A................76 DN a bit dissapointed with physics but very happy still :D