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April 21, 2014

Search: chemisrty

Number of results: 237

chemisrty
L x M = L x M
Sunday, December 12, 2010 at 10:12pm by DrBob222

chemisrty
No, there is.....
Saturday, June 1, 2013 at 12:45am by bonjo

Chemisrty
0.5
Sunday, March 10, 2013 at 10:02pm by Llui

chemisrty
ertywgwgh
Monday, November 16, 2009 at 12:28pm by Anonymous

Chemisrty
kjhlkjh
Tuesday, February 22, 2011 at 9:56pm by Anonymous

chemisrty
What else is in the mixture?
Sunday, April 14, 2013 at 2:56am by DrBob222

chemisrty
why is tat
Saturday, June 1, 2013 at 12:45am by bonjo

chemisrty
wrong
Saturday, June 1, 2013 at 12:48am by Anonymous

Chemisrty
6.93755
Wednesday, August 31, 2011 at 11:33am by Anonymous

Chemisrty
485
Tuesday, September 25, 2012 at 2:30pm by lulu

Chemisrty
how do i solve for XXXX
Monday, February 22, 2010 at 8:38pm by Jenna

ap chemisrty
xcvvc
Thursday, January 27, 2011 at 9:15pm by Anonymous

chemisrty
never chiral
Saturday, June 1, 2013 at 12:44am by bonjo

chemisrty
it's all right thanx ))
Saturday, June 1, 2013 at 12:48am by Annisstis

Chemisrty
formula for silicon dioxide?
Monday, September 8, 2008 at 12:52am by Me

chemisrty
For determining what? molar mass? No.
Wednesday, April 27, 2011 at 8:58pm by DrBob222

chemisrty
853 WHAT 1.50 WHAT 7.00 WHAT
Wednesday, October 19, 2011 at 8:39pm by DrBob222

CHEMISRTY
See your other post.
Friday, May 3, 2013 at 6:28pm by DrBob222

college Chemisrty
what's the 25.2??? is it a mass?
Monday, May 13, 2013 at 2:18am by bonjo

chemisrty
bonjo's answer is wrong
Saturday, June 1, 2013 at 12:44am by Anony mous

chemisrty
ONLY when bond is restricted
Saturday, June 1, 2013 at 12:44am by Maikol

chemisrty
which one goes on the top?
Saturday, June 1, 2013 at 12:48am by nn

chemisrty
Ag+(aq) + e- ----> help me finish it.
Monday, May 12, 2008 at 12:05pm by becci

Chemisrty
algebra xxx= .1*molmassNa3PO4*.25
Monday, February 22, 2010 at 8:38pm by bobpursley

Chemisrty
moles = grams/molar mass.
Monday, May 10, 2010 at 10:47pm by DrBob222

chemisrty
q = mass x specific heat x delta T.
Tuesday, June 29, 2010 at 11:17pm by DrBob222

ap chemisrty
Can't you use the Arrhenius equation?
Thursday, January 27, 2011 at 9:15pm by DrBob222

Chemisrty
I am having trouble balancing this reaction!
Saturday, January 29, 2011 at 1:12pm by Anonymous

Chemisrty
Still doesn't change my overall answer.
Sunday, March 17, 2013 at 11:39am by Devron

chemisrty
could u juz give answer? bonjo
Friday, May 31, 2013 at 11:27pm by Anonyms

chemisrty
bonjo. Are you hunting ducks in the dark???
Saturday, June 1, 2013 at 12:45am by DrB

Chemisrty
How can I test for catalase in a carrot using an experiment?
Tuesday, November 20, 2007 at 12:15pm by Christy Fultz

chemisrty
Doesn't that depend upon how you define an acid and a base?
Sunday, April 17, 2011 at 3:57pm by DrBob222

chemisrty
Read about hydrogen bonding. That's the secret.
Monday, January 16, 2012 at 4:44pm by DrBob222

chemisrty
q = mass Ag x specific heat x 12
Tuesday, March 20, 2012 at 4:54pm by DrBob222

Chemisrty
None. Mg will not displace Li^+ from LiCl.
Saturday, May 5, 2012 at 1:02pm by DrBob222

chemisrty
what is sulfur and what are the uses please make it simple as possible:D
Tuesday, October 23, 2007 at 6:32pm by joe

chemisrty
I forgot. The sulfur must be rubbed on the ankles, also.
Tuesday, October 23, 2007 at 6:32pm by DrBob222

Chemisrty
can someone please explain this question more in detail thank you
Tuesday, February 23, 2010 at 1:33am by Tersa

chemisrty - ICE CHART DEPOSTION
See your post above.
Thursday, November 22, 2012 at 1:06pm by DrBob222

chemisrty
Why do gases deviate from ideal behavior at very high pressures?
Friday, September 26, 2008 at 11:03am by mike

Chemisrty
.1M=XXX grams/molmassNa3PO4*.25 solve for xxxx
Monday, February 22, 2010 at 8:38pm by bobpursley

Chemisrty 1
Probably not to 100% certainty BUT the density can narrow the possibilities tremendously.
Monday, October 4, 2010 at 4:54pm by DrBob222

Chemisrty
increases. the left side of the chart is the easy to remove electrons.
Tuesday, January 11, 2011 at 9:49pm by bobpursley

chemisrty
could freezing point depression be used for substances not soluble in water?
Wednesday, April 27, 2011 at 8:58pm by Anonymous

chemisrty ASAP
name and give the formula for six diatomic elements.
Thursday, October 6, 2011 at 8:07pm by miguel

College Chemisrty
There are 140 g of H2SO4 in 400 mL of a solution. What is the molarity?
Thursday, October 27, 2011 at 7:41pm by Jane

chemisrty
calculate the delta H when 0.150 mmol of AgCl dissolves in water?
Sunday, September 9, 2012 at 6:00pm by samadhi kandekumbura

Chemisrty
How many grams of KClO3 must react to form 42.0 mL?
Thursday, April 4, 2013 at 5:24pm by Mia

chemisrty
565 g block of aluminum metal is cooled from 243 c to 100 c is what?
Saturday, September 14, 2013 at 1:49pm by george

Chemisrty
what mass of sodium phosphate is required to make 250mL of 0.10mol/L solution?
Monday, February 22, 2010 at 8:38pm by Jenna

Chemisrty
What is the pH of a 0.20 M solution of NH4Cl? [Kb(NH3) = 1.8 10−5]
Tuesday, February 22, 2011 at 9:56pm by Peter

chemisrty
calculate the percent by mass of carbon(c) in the amino acid arginine,C6H16N4.
Sunday, February 27, 2011 at 5:09pm by michelle

chemisrty
what is the final concentration of a solution if 100mL of water is added to a 25mL of 5.0 M NaCl?
Wednesday, November 16, 2011 at 9:02pm by mandy

chemisrty
how many grams of cai2 are present in 3.28 moles? Can someone explaine how to do this question as well?
Thursday, January 24, 2013 at 12:36am by omar

Chemisrty
What volume of oxygen, measured at STP, can be prepared by heating 2.16g HgO?
Wednesday, April 10, 2013 at 11:10am by Sam

chemisrty
Is this percent w/v? Use the dilution formula. c1v1 = c2v2 c = concn v = volume.
Friday, April 26, 2013 at 1:45am by DrBob222

chemisrty
how can you calculate the net charge of an ion if you know the number of protons, neutrons, and electrons it contains?
Wednesday, November 4, 2009 at 11:23pm by rica

chemisrty
I'm sorry but I can't envision the activity. And I don't know what you removed from the paper bag, in what order, and how they were clipped together.
Monday, November 16, 2009 at 12:28pm by DrBob222

chemisrty
5.0M x (25/125) = ?? and this assume that the volumes are additive. Otherwise the problem can't be solved.
Wednesday, November 16, 2011 at 9:02pm by DrBob222

chemisrty
volumeof oxygen produced if 130.0g of water is completely decomposed at STP?
Thursday, February 9, 2012 at 4:02pm by mike john

Chemisrty
How many L of carbon dioxide gas will be produced from the decomposition of 5.0g of sodium hydrogen cardonate?
Saturday, May 5, 2012 at 12:55pm by Elizabeth

chemisrty
What is ΔGo at 1000 oC for the following reaction? CaCO3 (s) CaO (s) + CO2 (g)
Tuesday, November 27, 2012 at 4:37pm by laquisha

chemisrty
how many ml of a .1M HCl are required to react completely with 1 gm mixture of Na2CO3 ?
Sunday, April 14, 2013 at 2:56am by swati

CHEMISRTY
Calculate the energy required to raise the temperature of 160.0 g Ag from 273 K to 295 K.
Sunday, April 21, 2013 at 10:45pm by Tonya

chemisrty
is what? Cooler, I suppose. You need to be more explicit and less cryptic if you want good answers.
Saturday, September 14, 2013 at 1:49pm by DrBob222

Chemisrty
The clue is in the name silicon (Si) dioxide (two atoms of oxygen O2) SiO2
Monday, September 8, 2008 at 12:52am by Dr Russ

chemisrty
What is the ratio of the average velocity of hydrogen molecules to that of neon atoms at the same temperature and pressure?
Thursday, May 13, 2010 at 6:38pm by someone

Chemisrty
I need help on what exactly to put on 10-12 slides on a pwoerpoint of anders celsius?? (for 2m)
Sunday, March 27, 2011 at 7:36pm by Tiara

chemisrty
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of MgSO3 and HI are mixed
Tuesday, April 12, 2011 at 2:53pm by Anonymous

Chemisrty
the equation is supposed to say: CS2 + 3O2 -> CO2 + 2SO2 * O2 not 3CO2
Sunday, March 17, 2013 at 11:39am by M

Chemisrty
calculate the final Celsuis Temp when 5.0 L of Flourine gas at 50 is cooled to give a volume of 3.75?
Thursday, March 24, 2011 at 1:33pm by Dee

chemisrty
It appears for each mole of chlorine, you get twice that number of moles of sodium chloride. What is the mass of 7.2moles of NaCl?
Friday, July 15, 2011 at 2:58pm by bobpursley

chemisrty
I would caution you that lower case letters don't tell me much. grams = mols x molar mass.
Thursday, January 24, 2013 at 12:36am by DrBob222

college Chemisrty
at what kelvin temperature will 25.2 of xe occupy a volume of 645 L at pressure of 732 torr?
Monday, May 13, 2013 at 2:18am by judy

chemisrty
Under what conditions of temperature and pressure do you think that the gas laws would work best? Please be specific
Tuesday, September 29, 2009 at 1:29am by Anonymous

CHEMISRTY
What's the product? What's the reaction? You need to post the entire problem and not just a part of it. My crystal ball is fuzzy tonight.
Sunday, February 28, 2010 at 5:01pm by DrBob222

chemisrty
what voule of 12M hydrochloric acid must be diluted with distilled water to prepare 5.0L of 0.10M HCl?
Sunday, December 12, 2010 at 10:12pm by Cassie

Chemisrty
as you move left to right across period 3 from mg to cl, the energy needed to remove an electron from the atom does what?
Tuesday, January 11, 2011 at 9:49pm by Kathy

Chemisrty
How many kilojoules of heat are absorbed when 40.7g of MgO(s) is decomposed into Mg(s) and O2 (g) at constant pressure?
Sunday, March 10, 2013 at 10:02pm by Anonymous

chemisrty - ICE CHART DEPOSTION
How do i find pH of HNO2 i just need a formula to follow cause i cant figure out the equation.
Thursday, November 22, 2012 at 1:17pm by Tara

Chemisrty
Calculate the work done when 60.0 g of tin dissolves in excess acid at 1.00 atm and 20C. Assume ideal gas behavior.
Thursday, October 14, 2010 at 12:49pm by Amber

Chemisrty
When 7.76 grams of magnesium bicarbonate are mixed with 300. mL of 0.10 M hydrocyanic acid, how many liters of gas are evolved at STP?
Saturday, January 29, 2011 at 1:12pm by Mary

chemistry
Thank you so with those corrections my new calculations would be .0090*100.05 = .90045g Hopefully this time it is right. Obviously I am not chemisrty gifted.
Friday, January 29, 2010 at 6:20pm by Krissy

Chemisrty
Calculate the moles of aluminum ions present in 250.0 g aluminum oxide
Monday, May 10, 2010 at 10:47pm by Sam

Chemisrty
a. Count the electrons. I see 19 which makes this element #19 or K. You can do the others?
Sunday, October 20, 2013 at 3:13pm by DrBob222

Chemisrty
okay so if the molar mass of Na3PO4 is 164. a multiply that by 0.1 and then multiply that by o.25 ??
Monday, February 22, 2010 at 8:38pm by Jenna

cHEMISRTY 101
(A) What is the mass of 150 mL of a liquid with a density of 1.4 g/mL
Thursday, February 3, 2011 at 6:26pm by Anonymous

Chemisrty
You have P, V, and T in the same problem. Boyle's Law is P and V. Charles' Law is V and T.
Wednesday, October 19, 2011 at 3:18pm by DrBob222

CHEMISRTY
q = mass Ag x specific heat Ag x (Tfinal-Tinitial)
Sunday, April 21, 2013 at 10:45pm by DrBob222

college chemisrty
You don't have any units. Please repost the entire question but use units.
Wednesday, July 7, 2010 at 7:20pm by DrBob222

chemisrty
the velocity of the electron is sqrt(2E/m) where E is the bond energy for NN and m is the mass of electron.
Friday, May 31, 2013 at 11:27pm by bonjo

Chemisrty
Calculate the amount of solute needed to make the solution .50kg of a 18% (m/m) KOH solution
Wednesday, May 18, 2011 at 3:07pm by Monster

Chemisrty
This is a 1:1 reaction between acid and base. For such a reaction, mL1 x M1 = mL2 x M2
Sunday, October 9, 2011 at 3:33pm by DrBob222

chemisrty
A 853 solution is diluted to a volume of 1.50 and a concentration of 7.00 . What was the initial concentration? PLEASE HELP
Wednesday, October 19, 2011 at 8:39pm by lola

chemisrty
what is the balance equation of CH3COOH(aq)+NH3(aq)
Monday, April 18, 2011 at 12:18am by yr

Chemisrty
How many grams of lithium metal would be produced if 0.500g of magnesium was added to a solution of lithium chloride?
Saturday, May 5, 2012 at 1:02pm by Elizabeth

Chemisrty 1
If ou knew the density of an unknown metal, do you think you could accurately determine the identity of the metal based on that property?
Monday, October 4, 2010 at 4:54pm by Mariah

cHEMISRTY 101
150 * 1.4 grams or 210 grams
Thursday, February 3, 2011 at 6:26pm by Damon

chemisrty
because I don't think this is the right answer. A racemic mixture in a not readily biodegradable chemical with high toxicity???? hmmmmmm 1,1,2-Trichloroethane is produced in closed systems and used as a solvent...???
Saturday, June 1, 2013 at 12:45am by DrB

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