Science & Mathematics - 8 September 2007

A purple solution is 16.05 mg/L in sodium salicylate, 0.15 M in HCL and 0.065 M in iron(III) ions. What are the concentrations of these three once you diluted the 10.00 ml to a final volume of 50.00 ml in volumetric flask?

This has me really confused, any help would be appreciated

2007-09-08 07:31:11 · 1 answers · asked by Bob Sanders 2 in Chemistry

Find the domain and range of the function g(x) = (6 - 4x) (square root).


a. Domain [-4,4], Range [2,∞)
b. Domain (-∞,3], Range [3,∞)
c. Domain (-∞,32] , Range [0, ∞)
d. Domain (-∞,3], Range [0,∞)
e. Domain [4,6], Range [0,∞)

2007-09-08 07:31:05 · 4 answers · asked by Anonymous in Mathematics

A graduated cylinder has an initial volume of water of 25mL. A rock was dropped in the cylinder. The final volume in the cylinder containing the water and the rock is 36 mL. What is the volume of the rock? - i think the volume is 11 but im not sure... is that right?

2007-09-08 07:29:22 · 7 answers · asked by A. Powell 2 in Mathematics

Wow well now i feel very stupid... guess summer killed my brain...

If gas costs 95 cents per liter. What is this cost per gallon?
Could someone show me how to do this?


...wow i feel stupid

2007-09-08 07:25:21 · 2 answers · asked by Anonymous in Mathematics

A) a vector from C(3,2,-7) to D(-1,-4,2)
B) a unit vector at D directed toward C
C) a unit vector at D directed toward the origin.

The answers are
a) -6.66 -2.77+9 b)-0.59+0.21-0.78 c)-0.90 -0.44
But i don't know how they get them.
Can anyone please show me?

2007-09-08 07:21:12 · 2 answers · asked by su 2 in Engineering

2007-09-08 07:17:58 · 14 answers · asked by Anonymous in Zoology

can someone please tell me how to add, multiply, divde, and subtract mixed fractions?

i think im doing it rite but i just wanna make sure i am.

could someone please tell me how to do the following:

4 1/2 divided by 6 =

18 1/5 - 12 2/3 =

13 7/8 + 6 1/3=

8 2/5 times 1 5/7 =


help me please!

2007-09-08 07:12:23 · 19 answers · asked by Anonymous in Mathematics

2007-09-08 07:08:05 · 4 answers · asked by Adrian N 2 in Engineering

if I keep up a brisk pace of 4 or 5 mph 12 hours a day

2007-09-08 07:07:51 · 7 answers · asked by Anonymous in Astronomy & Space

2007-09-08 07:02:23 · 11 answers · asked by aneesh J arackal 1 in Astronomy & Space

2007-09-08 07:02:09 · 6 answers · asked by SHF 1 in Chemistry

thanks

2007-09-08 06:58:33 · 9 answers · asked by luke 1 in Physics

I bought a reflector telescope off of ebay.The focuser if it is a focuser moves on a slide not up and down but horizontal.The secondary mirror moves with it.Is this a focuser or is this just changing the focal length?And if is not can a focuser be mounted on top of the slide?I don't have any eye pieces for it so I can't drop one in to see if it will focus...any help will be great....thanks

2007-09-08 06:56:05 · 6 answers · asked by Anonymous in Astronomy & Space

Also Known as Chi, Ki, Jing, Kundanlini and mana.

2007-09-08 06:56:00 · 2 answers · asked by Anonymous in Paranormal Phenomena

Chemistry question: what does relative abundance tell you?

2007-09-08 06:55:26 · 1 answers · asked by bubblepup13 3 in Chemistry

what is it.....

2007-09-08 06:54:38 · 12 answers · asked by Anonymous in Mathematics

and then convert 3/5 revolution clockwise into radians as well?

2007-09-08 06:52:26 · 2 answers · asked by Anonymous in Mathematics

I am an electrician and have a side job removing a timed meter that shuts off power to the panel controlling heating and cooling during peak hours. The system is a 200 amp meter back to back with the lighting and outlet panel, with a line feed to a second meter and timer back to back with the heating / cooling panel. The customer wants the lighting panel, which is very outdated, and the timed disconnect removed. This means the meter and panel will now be about 2 and a half feet apart. I plan to pipe out the side of the meter and LB into the back of the panel, but I couldn't find the distance requiring a disconnect in the codebook. I think it's four feet, but of course I need to be sure. Electricians, please answer.

2007-09-08 06:51:15 · 4 answers · asked by amatakir 2 in Engineering

A BODY COVERS HALF THE DISTANCE WITH A SPEED OF 20m/s AND THE OTHER HALF WITH A SPEED OF 30m/s .WHAT IS THE AVERAGE VELOCITY OF THE BODY DURING THE WHOLE JOURNEY.

2007-09-08 06:46:29 · 6 answers · asked by umashankar 1 in Geography

Where can i get Information On the Boston Tea Party
Information that are in bullet Points are what i really want

2007-09-08 06:46:02 · 3 answers · asked by The Funny Guy 2 in Other - Science

2007-09-08 06:45:14 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Whats the most effective way to build a cardboard kayak? I'm asking this because its a project in my science class and we have to race them across a shallow pond and make it so we don't sink.... anyhow... I also have to build a prototype and its due Monday. I have to build it out of Poster-board and clear tape. It must be able to hold about 450 grams for me to get all possible points... Help me please :D

2007-09-08 06:43:47 · 5 answers · asked by Desperate4Answers 1 in Other - Science

How much wood could a woodchuck chuck if a woodchuck could chuck wood?

2007-09-08 06:43:03 · 10 answers · asked by climburr 1 in Zoology

2007-09-08 06:41:13 · 9 answers · asked by chunkymonkey 1 in Physics

-9 and -4.17777777777777....... what are they?

2007-09-08 06:40:46 · 10 answers · asked by la la la 2 in Mathematics

answers only pls..

2007-09-08 06:36:12 · 8 answers · asked by Grand Phuba 5 in Physics

and are all different sizes

2007-09-08 06:33:51 · 9 answers · asked by some people are rude 2 in Astronomy & Space

2007-09-08 06:28:49 · 5 answers · asked by Anonymous in Biology

I saw this insect on my porch today. I live in SW Pennsylvania in a very rural area. I have seen these before but was able to capture it on camera today. Are they harmful? Do they bite? Are they poisonous? Should I have cause for concern? Please click on the following links for a view of this strange looking bug.
http://i192.photobucket.com/albums/z71/lyfsavr67medic/9-8-07022.jpg
http://i192.photobucket.com/albums/z71/lyfsavr67medic/9-8-07023.jpg

2007-09-08 06:22:55 · 5 answers · asked by lyfsavr67medic 3 in Zoology

http://en.wikipedia.org/wiki/Locust

2007-09-08 06:19:43 · 1 answers · asked by Anonymous in Zoology