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In a titration for the determination of the chloride ion, a solution of 0.1M agno3 is used against a solution, the volume of which is 100ml. At the completion of the titration, the residual concentrations of silver and chloride ions are equal and the total volume is now 125ml. What additional...

actually i meant ((1+sin^2(x))^1/2

How would u integrate (1+sin^2x)^1/2 what substitution do u need to use?? Thanks in advance

Wondering how to do this question Q: The usual theory of the Compton effect considers a stationary free electron being struck by a photon, resulting in a scattered photon of lower energy. Suppose that a photon (of energy E) has a head-on collision with a moving electron (of rest mass mo)...

thank you so much, i just got it from the internet somewhere :p

not too sure if this is part of the syllabus but: form the differential equations by eliminating the arbitrary constant A, B and C Y^2= Ax^2+Bx+C much help would be appreciated- thanks in advance :D

thank you so much :D

What volumes of 0.2M HCOOH and 2M NaOH would make 500ml of a buffer with the pH as the one made from 475ml of 0.2M benzoic acid and 25ml of 2M NaOH. Ka(HCOOH)= 1.8x10^-4 Ka (Benzoic Acid)= 6.3x10^-5 the answer is 0.121L of 2M NaOH and 0.379L of 0.2M HCOOH Thanks

well thats what i initially thought as well however, my textbook says the answer is 6.28 V

A two-turn circular wire loop of radius 0.5 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.4 T . Now the wire is reshaped from a two-turn circle to a one-turn circle in 0.1 s (while remaining in the same plane). What is the magnitude of the average induced emf in the...

Im really confused with this question, so if anyone can help, it would be much appreciated :D In a 2 slit interference experiment with slits of negligible width, 5 maxima are observed on each side of the central maximum. When slits are replaced by 2 slits of finite width separated by the same...

thank you guys soooo much :D

Find all values of m for which x+2y+mz=-1 2x+y-z=3 mx-2y+z=1 has a unique solution. In the cases where there is no unique solutions, solve the system. The answer is m can equal all values apart from -1 and -5 i get why is cant be -1 but i dont get how to m cant equal -5??? THANKS...

WOW! thank you so much... i spent way too much time doing that q :)

yes i did forget to multiply the other table arrangement so i think that way is correct. oh yeah!- i over thought the questions lOL it is just on the same table

im not really sure if this is right but perhaps using what Ikki said above number of ways two couples can sit together: (2c2*8C4*4C4*4!*2)+(2c2*8C2*6C6*2*2)= 3472 p(couple sitting together)= 3472/151200 = 31/1350 whats the answer anyway?

so im having a bit of trouble with this question: A piece of art receives a mark out of 100 for each of the categories design, technique and originality. In how many ways is it possible to score mark 200/300 I dont even know how to start???? thanks in advance :D