Friday
April 18, 2014

Search: science, chemestry

Number of results: 53,765

science, chemestry
plz help
Sunday, November 18, 2012 at 12:18pm by 123

science, chemestry
yeah but i don't know how to replace it with the numbers they gave me
Sunday, November 18, 2012 at 12:18pm by smile

science, chemestry
Remember E(photon) = E(electron)+E(Binding) Look also for deBroglie wave.
Sunday, November 18, 2012 at 12:18pm by PAL

Chemestry
Just follow the steps. http://www.jiskha.com/science/chemistry/stoichiometry.html
Wednesday, March 30, 2011 at 10:54pm by DrBob222

chemestry
Here is a worked example of a stoichiometry problem. Just follow the steps. http://www.jiskha.com/science/chemistry/stoichiometry.html
Wednesday, December 8, 2010 at 1:01pm by DrBob222

Chemestry
Here is a worked example of a stoichiometry problem. Just follow the steps. http://www.jiskha.com/science/chemistry/stoichiometry.html
Thursday, June 2, 2011 at 12:50pm by DrBob222

chemestry C
See this example. http://www.jiskha.com/science/chemistry/stoichiometry.html
Monday, November 14, 2011 at 5:53pm by DrBob222

chemestry
Follow these steps. http://www.jiskha.com/science/chemistry/stoichiometry.html
Wednesday, March 14, 2012 at 3:54pm by DrBob222

Chemestry
You can follow the instructions in the attached step by step. This will give you theoretical yield. http://www.jiskha.com/science/chemistry/stoichiometry.html
Thursday, February 2, 2012 at 10:02pm by DrBob222

chemestry
This explains stoichiometry problems. http://www.jiskha.com/science/chemistry/stoichiometry.html
Tuesday, February 14, 2012 at 10:09pm by DrBob222

chemestry
yes.
Wednesday, November 17, 2010 at 4:45pm by DrBob222

chemestry
Thank you =)
Thursday, March 29, 2012 at 10:40am by lizzy

Chemestry
3.
Sunday, January 26, 2014 at 8:59pm by bobpursley

Chemestry
and colder
Thursday, September 17, 2009 at 5:35pm by sarah

Chemestry
thanks sarah
Thursday, September 17, 2009 at 5:35pm by Chad

chemestry
Can you do M = moles/L?
Tuesday, November 22, 2011 at 5:08pm by DrBob222

chemestry
MgI2
Wednesday, November 28, 2012 at 8:27pm by DrBob222

chemestry
8.87
Saturday, January 12, 2013 at 7:50pm by Anonymous

chemestry
B = 2 C = 3 O = 3*3 = 9 total 2 + 3 + 9 = ?
Wednesday, March 5, 2014 at 2:15pm by DrBob222

chemestry
14
Wednesday, March 5, 2014 at 2:15pm by Anonymous

Chemestry
less gravity
Thursday, September 17, 2009 at 5:35pm by sarah

chemestry
answered below.
Thursday, September 17, 2009 at 7:20pm by DrBob222

chemestry
see above
Wednesday, April 28, 2010 at 10:10pm by DrBob222

Chemestry
What is the pH? 1.6 x 10^(-5)?
Saturday, June 19, 2010 at 6:48am by Kate

Chemestry
pH = -log(H^+)
Saturday, June 19, 2010 at 6:48am by DrBob222

Chemestry
I answered this below.
Tuesday, May 3, 2011 at 8:36pm by DrBob222

Chemestry
0.038
Wednesday, May 4, 2011 at 9:16pm by Paulo Costa

chemestry
P1V1 = P2V2
Monday, July 18, 2011 at 12:38pm by DrBob222

Chemestry--ChemIstry
The odor.
Thursday, September 29, 2011 at 12:13am by DrBob222

chemestry
what is the name of BCl3
Wednesday, November 28, 2012 at 8:27pm by Anonymous

chemestry
(+25) + (-29) = ?
Wednesday, November 28, 2012 at 8:24pm by DrBob222

solid chemestry
1.37
Friday, November 15, 2013 at 11:45am by Mariya

science, chemestry
Sulfur vapor is analyzed by photoelectron spectroscopy (PES). Measurements determine that photoelectrons associated with the 1st ionization energy of sulfur move with de Broglie wavelength λ=3.091 A˚. What is the maximum wavelength (in meters) of radiation capable of...
Sunday, November 18, 2012 at 12:18pm by Anonymous

science, chemestry
Sulfur vapor is analyzed by photoelectron spectroscopy (PES). Measurements determine that photoelectrons associated with the 1st ionization energy of sulfur move with de Broglie wavelength λ=3.091 A˚. What is the maximum wavelength (in meters) of radiation capable of...
Sunday, November 18, 2012 at 12:18pm by Anonymous

Gen Chemestry
thanks DrBob222 I appreciated your help
Saturday, October 25, 2008 at 12:16am by Roth

chemestry
at what temperature does ice melt
Thursday, September 17, 2009 at 5:54pm by Chad

chemestry
what is the formula for boyles law
Saturday, January 16, 2010 at 7:32pm by izzy

Chemestry
Use Henry's Law.
Monday, March 22, 2010 at 7:29pm by DrBob222

chemestry
sorry its 5-ethyl-2-hexyne
Wednesday, April 28, 2010 at 10:11pm by yaimery

chemestry
I wasn't there. I don't know what experiment was conducted. I don't know what was observed.
Friday, May 14, 2010 at 12:55pm by DrBob222

chemestry
what do the plus signs mean?
Tuesday, March 22, 2011 at 9:07pm by celina

chemestry
denstiy= mass/volume
Tuesday, September 6, 2011 at 8:51pm by bobpursley

analytical chemestry
Do you have a question?
Saturday, December 10, 2011 at 2:56am by DrBob222

Chemestry
See your other post.
Wednesday, May 23, 2012 at 4:05pm by DrBob222

chemestry 130
Calculators can be used for this.
Tuesday, November 13, 2012 at 7:58pm by DrBob222

Chemestry
See your post above.
Saturday, November 17, 2012 at 11:07pm by DrBob222

GENERAL CHEMESTRY
What difficulty are you having with this?
Wednesday, January 16, 2013 at 9:20pm by bobpursley

CHEMESTRY
See your other post.
Wednesday, February 6, 2013 at 9:31pm by DrBob222

chemestry
what is limiting reagent ?
Monday, February 18, 2013 at 12:46am by shashi ranjan

Chemestry
Answer is 17.3
Friday, February 19, 2010 at 7:05pm by Raymond murphy

chemistry
what is brandy's solution in chemestry?
Sunday, July 7, 2013 at 9:07am by dorothy

Chemestry
You don't believe 3? That's the right answer.
Sunday, January 26, 2014 at 8:59pm by DrBob222

Chemestry
This is college chem 132
Sunday, January 26, 2014 at 8:59pm by Raquel

chemestry
See your other post.
Tuesday, March 11, 2014 at 10:20pm by DrBob222

chemestry
You're probably thinking ob boron.
Tuesday, April 22, 2008 at 7:23pm by DrBob222

chemestry
divide 27 by one million.
Sunday, August 24, 2008 at 1:41pm by bobpursley

chemestry
what are four components of the water molecule?
Monday, October 20, 2008 at 5:20pm by Anonymous

chemestry
what is analgesics? what is its composition? what is their utility in curing?
Tuesday, May 5, 2009 at 6:16am by soumya

chemestry
Wouldn't the longest chain be a heptyne?
Wednesday, April 28, 2010 at 10:11pm by bobpursley

chemestry
mL1 x M1 = mL2 x M2
Wednesday, January 19, 2011 at 10:05pm by DrBob222

chemestry
What experiment are you doing? What have you added to what? What is the procedure?
Wednesday, March 30, 2011 at 6:32pm by DrBob222

chemestry
moles = grams/molar mass
Sunday, September 25, 2011 at 1:23pm by DrBob222

Chemestry
How many moles of NaHCO3 are in a 44g sample?
Monday, January 28, 2013 at 4:57am by Douglas

CHEMESTRY
13 mol CsXeF7
Wednesday, February 6, 2013 at 9:33pm by Lexi Harris

Chemestry
(a) 58.87 g all I know!
Wednesday, February 6, 2013 at 9:09pm by Lexi Harris

chemestry
for 1369 K answer is 9.10814144008e+18
Friday, November 15, 2013 at 2:50pm by DDD

Chemestry
where you got the 7.7 from? and how you calculate the molality for it. I am stuck please help
Sunday, October 26, 2008 at 5:38pm by Joshua

chemestry
You might learn to spell chemistry correctly.
Thursday, September 17, 2009 at 5:54pm by DrBob222

Chemestry 095
An chemistry is spelled correctly here.
Sunday, November 29, 2009 at 3:11pm by DrBob222

chemestry
One way of writing it is P1V1 = P2V2
Saturday, January 16, 2010 at 7:32pm by DrBob222

chemestry
what is the condensed structural formula for. 5- ethyl-2-hexene
Wednesday, April 28, 2010 at 10:10pm by yaimery

Chemestry
Your question makes no sense to me. Please clarify it.
Monday, February 7, 2011 at 8:53pm by DrBob222

chemestry
calculate the moles of compound in .540g of ammonium bromide
Sunday, September 25, 2011 at 1:23pm by Help!

Chemestry
What property of paradichlorobenzene may convince you that it is an ingredient in mothballs?
Thursday, September 29, 2011 at 12:13am by Helena

Chemestry
PV = nRT. Don't forget T must be in kelvin.
Saturday, November 17, 2012 at 11:15pm by DrBob222

chemestry
what is the chemical formula for maganese(II)iodine?
Wednesday, November 28, 2012 at 8:27pm by Anonymous

chemestry
mass=density*length*width*thickness
Saturday, May 18, 2013 at 4:25pm by bobpursley

solid chemestry
a. BCC b. 3.17 I don't have c yet!
Friday, November 15, 2013 at 11:45am by koala

solid chemestry
for 1369 K answer is 9.10814144008e+18
Sunday, November 17, 2013 at 1:18pm by DDD

chemestry
Which element of group 3A behave as a nonmetal or semimetal?
Tuesday, April 22, 2008 at 7:23pm by tomas

chemestry
You don't give any information about the experiment being conducted; I don't know what you are doing.
Monday, September 5, 2011 at 4:12pm by DrBob222

chemestry
calculate the moles of compound in 0.540 grams of ammonium Bromide
Saturday, September 24, 2011 at 2:08pm by Help!

chemestry
3*C + 6*H + 2*O = ?? Look up atomic masses on the periodic table.
Sunday, September 25, 2011 at 1:18pm by DrBob222

Chemestry
ok thanks but i still get stuck doing the theoretical yield can you please show me how to do this?
Thursday, February 2, 2012 at 10:02pm by Jocelyn

chemestry
what is the charge on an ion with 25 protons and 29 electrons?
Wednesday, November 28, 2012 at 8:24pm by Anonymous

Chemestry
You don't have an arrow. How do you know where the reactants stop and the products begin?
Wednesday, February 6, 2013 at 7:49pm by DrBob222

chemestry
They correct for volume of the molecules and the attractive forces between them.
Sunday, February 17, 2013 at 9:50am by DrBob222

chemestry
how many total atoms are there in the chemical formula B2(CO3)3
Wednesday, March 5, 2014 at 2:15pm by stephanie

chemestry
Zero degrees celsius. By the way, it freezes at the same temperature.
Thursday, September 17, 2009 at 5:54pm by DrBob222

chemestry
what does air pressute do to the freezing, melting ad boiling point
Thursday, September 17, 2009 at 6:47pm by Chad

chemestry
what does air pressure do to the freezing, melting ad boiling point
Thursday, September 17, 2009 at 7:20pm by Chad

chemestry
The oxide ion O2- has the same electron configuration as neon?
Wednesday, November 17, 2010 at 4:45pm by joly

chemestry
Use (V1/T1) = (V2/T2) T must be in kelvin.
Sunday, April 17, 2011 at 10:00pm by DrBob222

Chemestry
The alcohol is a more polar molecule and there is hydrogen bonding in ethanol.
Tuesday, May 3, 2011 at 7:59pm by DrBob222

chemestry
if my mass of my aluminum cube is 5.45 and volume is 2 ml, what i my density?
Tuesday, September 6, 2011 at 8:51pm by ana

Chemestry
The definition is M = mols/L soln. Plug in the numbers and read the answer.
Friday, November 23, 2012 at 6:02pm by DrBob222

chemestry
if you dissolve 350 g of K(2)CrO(4)in 2.4 kg of water, what is the molality of the solution?
Thursday, April 25, 2013 at 12:01am by crystal

Chemestry
My Home work is online. When I gave that answer it said 3 is wrong.
Sunday, January 26, 2014 at 8:59pm by Raquel

chemestry
what is the wavelength of the energetic spectral line in the ultraviolet series of the h atom and how to find it
Monday, September 14, 2009 at 10:05pm by sam

Chemestry
why would it take longer to cook food in the mountians than at sea level?
Thursday, September 17, 2009 at 5:35pm by Chad

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