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I know that in first year chem, the only difference between adv. and reg. was the content taught in lectures. Is that the same with second year chem?

{z e C | |z − i| < |z − 1| }?? Thankyou :D

In an experiment, a student mixed 15.0mL of 0.030mol L-1 HCl with 20.0mL of 0.010mol L-1 Ba(OH)2. Calculate the pH of the resulting solution. The answer is 6.76 but I got 2.845. As you can see I'm way off. Please help :D

I'm sorry if this has been asked before but I'm wondering if any of these lectures are recorded: MATH1001 MATH1002 CHEM1901 BIOL10031 BIOL1911 Thankyou! :D

Using arrhenius' definition of an acid, what would NaHCO3 be classified as? Would it be an acid because it releases H+ ions in solution? NaHCO3 (s) → Na+(aq) + H+ (aq) + CO32- (aq)

1g of petrol produces 45.8g of energy. Given that the ▲H of combustion of ethanol is -1360kJ/mol, calculate the mass of ethanol required to produce the same amount of energy as 1g of petrol. I have no idea what to do :$

Out of curiousity, if i major in both medicinal chemistry and pharamcology at usyd what can I do with the degree? Will I become a pharmacologist or medicinal chemist or both? Thanks in advance :D

I can't find the last proof I need to prove that the triangles are congruent. Judging by the marks it should be quite simple but I can't see it. :( In trianlge CAB and trianlge GBA: Angle ACB = angle AGB (angle on the circumference subtended from the same arc AB are equal) AB = AB (common...

Eight people attend a meeting. They are provided with two circular tables, one seating 3 people, the other 5 people. (i) How many seating arrangements are possible? (ii) If the seating is done randomly, what is the probability that a particular couple are on different tables? I don't...

\lim_{x\rightarrow 0}\frac{1- cos 2x}{x^{2}} How would u work this one out? Thanks in advance !

How would you solve this equation? x-e^{-x}=0

I'm not quite sure how to do this :S http://www.boardofstudies.nsw.edu.au/testResults.cfm?testID=12722943&testUUID=BBA5B8FB-E9BA-0ED2-7AFF8493FE0EEBAA&question_id=8019&question_num=1&correctAnswer=A&user_answer=C&courseID=15050&testQuestionID=256810828 Please help Thanks =)