[sunshin3]

Can anyone please help me on this question becausei don't know how to explain this question.i don't have my chem book so i don't really know get it, thanks  

a) could a xylophone be considered a "quantized" musical instrument? explain.
(i think the answer is probably ''yes'', but is it because there is something to do with waves?)
b) consider two watches, one a digital and the other an analog watch with hands. which is more ''quantized''? explain.
(i think i know which one,but how should i explain it?)

i have another question related to the following problem. i tried to figure it out but it seems like it's missing some info. but maybe it's because i am er....dumb.

a gaseous mixture of O2, H2, and N2 has a total pressure of 1.50 atm and contains 8.20g of each gas. find the partial pressure of each gas in the mixture.

again, i would like to thank everyone that has the patience to look at my questions, doen't matter if you can figure it out or not. thanks!

[Donaldson Tan]

a. xylophone is quantised because of the specific tune each key produces. eg. each stroke produces do, re or mi. it cannot produce a tune that is in between do, re or mi.

b. the digital watch is more quantised. [think of the xylophone]

c. assume each gas is perfect, so u can use PV = nRT to solve. n (the number of moles) is given by mass divide by molar mass.

[sunshin3]

thanx!