Science & Mathematics - 18 September 2007

Cisplatin is
K2PtCl4 (aq) + 2NH3 (aq) ---> Pt(NH3)2 Cl2 (s) + 2KCl (aq)
[FYI, Cl is chlorine]

What mass of cisplatin can be made from 100g of K2PtCl4 and sufficient NH3? What mass of KCl is also produced?

I tried converting 100g K2PtCls to moles then to NH3 moles and then to g NH3.
I don't know how to do this problem. :(

Help? Step by step please. Thank you very much! :)

2007-09-18 16:38:42 · 3 answers · asked by v 2 in Chemistry

I'd appreciate if someone could help me understand how to integrate the following:
-1/((x^3)/(x^2-16)^(1/2))

2007-09-18 16:37:33 · 1 answers · asked by Tryingtohelp 2 in Mathematics

conventional process in construction industry

2007-09-18 16:33:57 · 1 answers · asked by azmi j 1 in Engineering

how do you make a table of values for step functions(also known as integer functions)?

thank you very much

2007-09-18 16:30:14 · 6 answers · asked by Anonymous in Mathematics

r (t) = - 2t i + (7/t) j , t = 1

is it...
21, 25, 28, 31, or 36 over / (53 sqrt(53)) ???

2007-09-18 16:30:05 · 1 answers · asked by Anonymous in Mathematics

Here's what I've done so far:
(u-3)^3-3u+8=0
(u-3)(u2-3u+9)-3u+8=0
u3-3u2+9u+92-3u2=27=3u+8=o
u3-9u2+18u-19=0...

but I don't know how to continue on now...

Thanks all in advance =D

2007-09-18 16:28:40 · 1 answers · asked by Anonymous in Mathematics

2007-09-18 16:28:36 · 5 answers · asked by cb_schulman 1 in Engineering

Is there anything in the vast universe that could "take out" the sun, or make it burn dimmer, ?

2007-09-18 16:27:26 · 8 answers · asked by Scorpius59 7 in Astronomy & Space

r (t) = t i + (4/t) j , t = 2

2007-09-18 16:26:54 · 1 answers · asked by Anonymous in Mathematics

2007-09-18 16:25:12 · 5 answers · asked by Roger! 2 in Chemistry

Is there any food which helps fight depression ?

Can depression be cured other then thru medication ?

Is depression a genetic charecteristic ?

What are the long term effects of depression on the mind and body ?

2007-09-18 16:23:59 · 9 answers · asked by Pramod R 4 in Medicine

2007-09-18 16:21:17 · 3 answers · asked by Anonymous in Geography

A drawer contains 8 blue, 15 white, and 17 red socks. How many socks must be removed without looking to be sure of getting at least one matching pair each color. thx

2007-09-18 16:21:04 · 6 answers · asked by Meow* 2 in Mathematics

2007-09-18 16:20:26 · 5 answers · asked by doug e 1 in Astronomy & Space

2007-09-18 16:18:45 · 5 answers · asked by +-+-+-+-+- 4 in Mathematics

I`m canadian and we`re supposed to have been using the metric system and I remember being taught it as early as grade 2. But I`m 34 now, and I still don`t have a clue how many cm I am, I know I`m 5`1, and I know I weigh 120 but i have no idea how many kgs that is. I think in miles instead of kilometers, and i know there are 2.2 kg in a lb(I might have that backwards) and 454 g in a pound, but holy crap, the whole system is whacked. So I am looking for a page i can pull up and enter the m height of a guy i`m interested in (185cm) but that could be 5`2` for all i know and being 5`1 myself, well, thats too short for me. ANd he`s really hot, so I hope it means more like 5 10!!!!
Also i do a lot of shipping, and they always want cm and kg, but my measuring tapes are uncooperative, or I`m not doing it right. Any suggestions or perhaps the secret method to figure em out fast, would be appreciated!
Thanks!

2007-09-18 16:17:49 · 5 answers · asked by Anonymous in Engineering

2007-09-18 15:59:01 · 6 answers · asked by Ally L 1 in Astronomy & Space

Does anyone have the Campbells test bank for biology or a version online that i can see to study for my tests?

2007-09-18 15:57:10 · 3 answers · asked by chillinvivan 2 in Biology

When is the first day of Fall in Atlanta, GA

2007-09-18 15:56:26 · 4 answers · asked by Edward D 1 in Weather

please help....i need answer soon....

thank you everyone.

2007-09-18 15:55:35 · 1 answers · asked by Anonymous in Botany

Do I follow a formula or is there more than one step? I'M CONFUSED!!!

2007-09-18 15:55:18 · 2 answers · asked by Heell yeaah! 3 in Mathematics

2007-09-18 15:54:56 · 5 answers · asked by columbiaunurse 1 in Medicine

She makes 13 out 20 of her next free-throws and her % drops to .860.

2007-09-18 15:54:56 · 2 answers · asked by Dennis N 1 in Mathematics

2007-09-18 15:54:04 · 5 answers · asked by ddddiemxngnmhmhmg00001 1 in Medicine

What angle does Fr make with the positive x axis?
Fr=1.8 N
Three forces of magnitudes F1=4.0N,F2=6.0N , and F3=8.0N are applied to a block of mass , initially at rest,
F1 is at an angle of 25 degrees
F2 is at an angle of 10 degrees(in the - y direction)
F3 is at an angle of 235 degrees

2007-09-18 15:53:56 · 2 answers · asked by Anonymous in Physics

A group of people attended a play. The group was able to buy a maximum of ten tickets in advance at a reduced price of 8$ per ticket. The rest of the tickets were purchased at the theater at the regular price of 12$ per ticket. The group decided to divide the total cost evenly among all 16 people. How much did each person pay.

If you are gonna answer in a rude way then don't bother answering at all because I will report you.

2007-09-18 15:51:31 · 18 answers · asked by Jenny 1 in Mathematics

do paramedics work and stay at the firehouse with firefighters for 24 hour periods? what is it like to be a paramedic or EMT. what are the differences between the two? salaries? etc.? typical work week?

2007-09-18 15:48:52 · 4 answers · asked by Anonymous in Medicine

2007-09-18 15:47:32 · 3 answers · asked by Nap 1 in Mathematics

2007-09-18 15:47:32 · 7 answers · asked by columbiaunurse 1 in Medicine

where he started. The first displacement is 8.00 m westward, and the second is 12.0 m northward. Use the graphical method to find the magnitude and direction of the third displacement. the magnitude is 14.422m and I can't find the angle.....the angle is (clockwise from due north)

2007-09-18 15:46:08 · 1 answers · asked by hockeywinger14 1 in Physics