chem-mystry

i have been lookin on internet since months but find nothing yet.

hi there is anyone out there did the cpr through this web site. please help me if you know. if someone did how was the experience and did u have their contact info.

i have to write a paper in disease all body systems are included except cardiology ( heart).

But that disease must be identified by blood test , do you have any idea

i don't want HIV as its so common. i am interested in skeletal or muscular system. if you can find one disease in these systems.

please help me , thanks

Actually, my Mother in law is indian. And she cooks daily the indian food with lots of smells, smells of spices, smells of fried onion. And my prolem is taht i am a student and i also have a job too, but the cooking smell is sticks to my cloths. I put electric freshner in my closet but i dont know how that smell come to my closet. I keep all the door shut while cooking but still all my cloths stinks. I am in so much tension cos of that. No perfume can eliminate the smell.

what to do?

i am planning to buy laptop and i want to know whats the best one. i like Dells but i am not sure whichj one wud be best. I am a great fan of music and want high speed one pls help me out

Actually i cant undestand that how to do antilog operation on calculator or is tehre anyother way?

For example: [H3O+]= 10 (-7.3)pH

[H3O+]=5.01x10`-8 (-8 is the power) how they get that answer, i found this from books example.

The Empirical formula of two compounds are CH4. If molar mass of one is 32g/mole and the others is 48g/mole; then find out the chemical formulas of these compounds?

Its the tricky one, isnt it?

I cant understand the difference between molecule or mole? three questions seems same but are different.

1) how many grams in 0.100 mol H2SO4.

2) how many molecules of CO2 are present in 19.03x10`23(power) molecules of CO2?

3)How many moles are present in 42 grams of water.

in question 2 and the very first one 23 is the power of 10.

Help me please

thanks