Thursday
April 17, 2014

Search: Chemistry=MOLES!

Number of results: 103,090

chemistry
Initially, there are 33 moles of A and 0 moles of B. How many moles of A and B will be present after the system reaches equilibrium? a) 33 moles A; 0 moles B b) 0 moles A; 33 moles B c) 3 moles A; 30 moles B d) equal amounts of A and B The answer is given as "C" but I dont ...
Wednesday, April 27, 2011 at 9:04pm by Adam

Chemistry
3 moles A x (3 moles C/2 moles A) = 4.5 moles C. 4 moles B x (3 moles C/4 moles B) = 3 moles C. Both answers can't be correct; the correct one in limiting reagent problems is ALWAYS the smaller value.
Monday, October 10, 2011 at 4:49pm by DrBob222

Chemistry-
N has units of whatever moles had... Moles of molecules Moles of atoms Moles of donuts Moles of chemistry students.
Tuesday, October 1, 2013 at 10:34am by bobpursley

chemistry
How many moles of NaOH are in 23.5 mL of a 1.50 M solution? 1. 0.0353 moles 2. 35.26 moles 3. 16.7 moles 4. 0.0235 moles
Tuesday, November 29, 2011 at 3:12am by katie

chemistry
Convert 3.1 g Cu into moles. moles = grams/molar mass Using the coefficients in the balanced equation, convert moles Cu to moles HNO3. Now convert moles HNO3, remembering M = moles/L to L. From moles Cu, convert to moles NO formed, then moles x 22.4 L/mol = L NO at STP.
Sunday, November 7, 2010 at 7:16pm by DrBob222

chemistry
Convert 228 g NH4NO3 to moles. Moles equal grams divided by molar mass. Using the coefficients in the balanced chemical equation convert moles ammonium nitrate to moles nitrogen, moles water, and moles oxygen. Add moles of each to obtain total moles. Remembering that one mole ...
Monday, January 7, 2013 at 8:34pm by DrBob222

Chemistry
First determine the moles chloride ion. moles = M x L = 0.12L x 0.12 M NaCl = xx moles moles = M x L = 0.22 L x 0.19 M MgCl2 = yy moles MgCl2. Multiply that by 2 since there are 2 moles Cl in each mole MgCl2 to obtain the moles chloride in that solution. yy moles x 2 = zz ...
Saturday, March 13, 2010 at 12:44am by DrBob222

Chemistry
Hello yourself. I know those are not moles. I told you how to work the problem. Do you know how to get moles? Convert each to moles. Find moles Na in each. Add everything together to get final moles etc etc. Let me know if you still need help but tell me what you don't ...
Wednesday, May 13, 2009 at 10:34pm by DrBob222

chemistry
Straight up, straight down, straight laterally, here's the scoop. When you have moles of anything and an equation, all you really need to do is to convert from moles of one entity to moles of another. The way you do that is to use the coefficients in the balanced equation as I...
Thursday, July 7, 2011 at 1:11pm by DrBob222

chemistry
(A) moles HCl1 = M x L moles HCl2 = M x L moles mixture = total moles/total L. B and C are about the same but the salts are not 1:1 therefore, you determine moles Na2SO4, for example, and multiply by 1 for moles Na^+ and multiply by 1 for sulfate ion.
Wednesday, September 21, 2011 at 4:09pm by DrBob222

Chemistry
moles I2 = grams/molar mass = ??moles. Using the coefficients in the balanced equation, convert moles I2 to moles S2O3^-2. ??moles I2 x (2 moles S2O3^-2/1 moleI2) = xx M S2O3 = moles/L
Wednesday, October 6, 2010 at 10:29pm by DrBob222

Chemistry
How many moles are in the solution you want to prepare? M x L = moles. So you must add that many moles of the more concentrated solution. L x M = moles again. You know M and you know moles (from the first calculation), solve for L.
Tuesday, September 1, 2009 at 9:48pm by DrBob222

chemistry
Convert 1.3 kg to grams, then to moles. moles = grams/molar mass. Now that you know how many moles you need, use M = moles/L. You know moles and M, solve for L.
Tuesday, October 26, 2010 at 6:10pm by DrBob222

Chemistry
moles H2C2O4 = grams/molar mass = ?? Using the coefficients in the balanced equation, convert moles H2C2O4 to moles NaOH. That will be ??moles H2C2O4 x (2 moles NaOH/1 mole H2C2O4) = ??moles H2C2O4 x 2 = xx moles NaOH. Then M NaOH = moles NaOH/L NaOH, and round to the ...
Tuesday, June 7, 2011 at 7:06pm by DrBob222

Chemistry
Consider the gas-phase equilibrium A ⇌ B. In a series of experiments, different initial amounts of A and B are mixed together, and the mixture in each case is allowed to come to equilibrium. Which one of these experiments would yield values for the amounts of A and B ...
Monday, March 8, 2010 at 9:51pm by Val

Chemistry
Using the coefficients in the balanced equation, convert 3 moles propane to moles oxygen. 3 moles C3H8 x (5 moles O2/1 mole C3H8) = ?? moles O2. Then convert moles O2 to grams. g = moles x molar mass.
Thursday, November 11, 2010 at 1:53pm by DrBob222

organic chemistry
First, this doesn't look like an organic chem question to me. I don't know any organic chemistry but this one I can work. moles NaOH = Molarity NaOH x liters NaOH = ? Convert moles NaOH to moles H2SO4 this way. ?mols NaOH x (1 mole H2SO4/2 moles NaOH = ?moles NaOH x 1/2 = x ...
Tuesday, January 31, 2012 at 10:01pm by DrBob222

chemistry
moles HCl initially = M x L. moles NaOH = M x L moles NaOH = moles HCl in excess. moles HCl initial - mols HCl excess = moles used by actacid. I'm confused by "express the volum of HCl solution in liters" but the information is above. If the answer is to be expressed in liters...
Monday, April 19, 2010 at 2:03pm by DrBob222

Chemistry
You want to convert 8.2 g O2 to moles, 8.2 g N2 to moles, 8.2 g H2 to moles. Then determine the mole fraction of each. partial pressure each = Xof each*1.5 atm. moles fraction, O2 for example, = moles O2/total number of moles.
Monday, August 2, 2010 at 6:24pm by DrBob222

Chemistry
Convert 15.4 g to moles. moles = grams/molar mass. M = moles/L solution. M = moles/0.071L = ??M
Sunday, February 27, 2011 at 3:35pm by DrBob222

chemistry
How many moles is 55.8 g. moles = grams/molar mass. What is the definition of M? M = moles/L Substitute for M and moles; solve for L.
Wednesday, March 9, 2011 at 9:43pm by DrBob222

Chemistry
Balance the equation. Convert 1.25 g NH4NO3 to moles. Convert moles NH4NO3 to moles N2, moles O2, and moles H2O. (Three conversions each done separately). Convert moles of each to grams of each.
Thursday, May 21, 2009 at 8:01pm by DrBob222

Chemistry
1. Convert 13 g Zn to moles. moles = grams/molar mass. 2. Using the coefficients in the balanced equation, convert moles Zn to moles HCl. 3. Now convert moles HCl to volume. M= moles/L. You know moles and M, calculate L and convert to mL.
Tuesday, July 13, 2010 at 1:54am by DrBob222

chemistry
Just a step or two. molarity = moles/L. So convert 612 g CaCl2 to moles. moles = grams/molar mass. Then moles/L (L is 5.04) will get it.
Sunday, June 13, 2010 at 6:40pm by DrBob222

chemistry
1. Convert 2.7 g Zn to moles. moles = grams/molar mass. 2. Using the coefficients in the balanced equation, convert moles Zn to moles HCl. 3. Now convert moles HCl to volume. M = moles/L. You know M and moles, calculate L, then convert to mL.
Monday, July 12, 2010 at 11:49pm by DrBob222

chemistry
This is a regular stoichiometry problem. Zn + 2HCl ==> ZnCl2 + H2 1. Convert HCl to moles. moles = M x L = ? 2. Use the coefficients in the balanced equation to convert moles HCl to moles Zn. 3. Convert moles Zn to grams. g = moles to molar mass. b) Convert moles (either Zn...
Wednesday, December 7, 2011 at 9:44am by DrBob222

Chemistry
Determine the # of moles of Al2S3 that can be prepared by the reaction of 0.400 moles of Aluminum with 0.700 moles of Sulfur, and Also find the # of moles of reactant in excess
Saturday, May 7, 2011 at 11:00am by Denise

chemistry
5.0 g KCl = how many moles? moles = grams/molar mass. Then M = moles/L. YOu know M and you know moles, solve for L.
Friday, July 15, 2011 at 12:36am by DrBob222

chemistry
You mean magnesium NITRIDE. Magnesium nitrate is Mg(NO3)2 and it does not produce NH3 when reacted with H2O. Convert 355 mL NH3 to moles. moles = L/22.4 = ? moles NH3. Convert moles NH3 to moles Mg3N2 using the coefficients in the balanced equation. ?moles NH3 x (1 mole Mg3N2/...
Thursday, December 1, 2011 at 2:39pm by DrBob222

chemistry
I will do 1) for you in detail. A + 2B ==> 3C mols A = 1. How many moles of C will that form? Using the coefficients in the balanced equation, convert moles A to moles C. 1 mole A x (3 moles C/1 mole A) = 3 moles C. moles B = 1. How many moles of C will that form? Same ...
Wednesday, November 10, 2010 at 11:13pm by DrBob222

chemistry
You can do this by reasoning or by calculation. Here is the calcn. Take 1 L of each. moles A = L x M = 1 L x 1 x 10^-5 M = 1 x 10^-5 moles. moles B = 1L x 1 x 10^-11 M = 1 x 10^-11 moles. moles A + moles B = [(1 x 10^-5) + (1 x 10^-11)] = 1 x 10^-5 moles. Total volume is 2 L. ...
Tuesday, June 22, 2010 at 9:45pm by DrBob222

Chemistry
H2SO4 + 2NH4OH==> (NH4)2SO4 + 2H2O mols H2SO4 used = M x L = ?? Convert moles H2SO4 to moles NH4OH using the coefficients in the balanced equation. moles NH4OH = moles H2SO4 x (2 moles NH4OH/1 mole H2SO4) = ?? Then convert moles NH4OH to M from M = moles/L. You know moles ...
Friday, December 3, 2010 at 7:46pm by DrBob222

Chemistry
You need an equation. Ba(OH)2 + 2HCl --> BaCl2 + 2H2O Think moles.' moles Ba(OH)2 = M x L = ?? Using the coefficients in the balanced equation, convert moles Ba(OH)2 to moles HCl. ??moles Ba(OH)2 x (2 moles HCl/1 mole Ba(OH)2) = xx moles HCl Tben the definition of molarity ...
Thursday, October 7, 2010 at 5:36pm by DrBob222

chemistry
KI dissociates in water to produce KI ==> K^+ + I^- Moles KI = grams KI/molar mass KI. Since there are two ions per molecule of KI, the total number of moles will be just twice the moles KI. Moles of K^+ and moles I^- will equal moles KI.
Monday, November 23, 2009 at 11:09am by DrBob222

Chemistry
Calculate moles NaBr initially. moles = M x L. Calculate moles Cl2 initially. Use PV = nRT or the fact that a gas at STP occupies 22.4 L. Determine the limiting reagent and from that the moles NaCl produced. Then moles = M x L. You know moles and M, calculate L and convert to ...
Friday, February 12, 2010 at 6:32pm by DrBob222

Chemistry
Convert 52.0 g C2H2 to moles. moles = grams/molar mass. Using the coefficients in the balanced equation, convert moles acetylene to moles CO2 and do the same thing for moles H2O. Now convert those moles to grams. g = moles x molar mass.
Monday, March 22, 2010 at 7:26pm by DrBob222

Chemistry
How many moles Na^+ do we want? That is M x L = 4.6L x 0.138M = ? How many moles do we have? That is M x L = 4.6L x 0.118M = x The difference is ?-x = z moles Na^+ Convert z moles Na^+ to moles NaCl (to give z moles NaCl), then grams = moles x molar mass NaCl.
Monday, October 31, 2011 at 1:13am by DrBob222

Chemistry
Consider the gas-phase equilibrium A ⇌ B. In a series of experiments, different initial amounts of A and B are mixed together, and the mixture in each case is allowed to come to equilibrium. Which one of these experiments would yield values for the amounts of A and B ...
Monday, March 8, 2010 at 11:16pm by Val

Chemistry
No. V x M = V x M works ONLY when the reactions coefficients are the same; i.e., 1:1, 2:2 etc. How many moles MgCl2 do you have? That is M x L = ?moles MgCl2. Now, using the coefficients in the balanced equation, convert moles MgCl2 to moles Na3PO4. moles Na3PO4 = ?moles MgCl2...
Thursday, June 30, 2011 at 11:26pm by DrBob222

Chemistry
Convert 2.16 g Pb(NO3)2 to moles. moles = grams/molar mass. Using the coefficients in the balanced equation, convert moles Pb(NO3)2 to a. moles NO2, and b. moles O2. Add moles gases, substitute into PV = nRT at the conditions listed and solve for P.
Tuesday, January 3, 2012 at 5:16am by DrBob222

chemistry
Write the equation and balance it. 4Al + 3O2 ==> 2Al2O3 You have moles Al. Using the coefficients in the balanced equation, convert moles Al to moles Al2O3. 0.646 mol Al x (2 moles Al2O3/4 moles Al) = ?? moles Al2O3. Note how the unit you don't want cancels (you want to get...
Friday, March 12, 2010 at 7:23pm by DrBob222

Science/Chemistry
The reaction is: Zn(OH)2 + 2HBr ---> ZnBr2 + 2H2O This reaction shows that moles of HBr = (1/2) moles of HBr. Moles of HBr = (liters)(moles/L) or moles HBr = (0.500 L)(0.50 mol/L) = _____? moles of ZnBr2 = (1/2) moles of HBr Multiply the moles of ZnBr2 by its formula mass ...
Sunday, September 28, 2008 at 4:42pm by GK

Chemistry
Write the equation and balance it. moles HCl = M x L = ?? Using the coefficients in the balanced equation, convert moles HCl to moles Pb(NO3)2. a) M = moles/L b) g = moles x molar mass.
Saturday, October 9, 2010 at 9:30pm by DrBob222

Chemistry
Convert 96 g O2 to moles. moles = grams/molar mass = 96/16 = 6 Now, using the coefficients in the balanced equation, convert each of the reactants to any one of the products. We may as well use Ag2S. 12 moles Ag x (2 moles Ag2S/4 moles Ag) = 12*2/4 = 6 moles Ag2S. 6 moles H2S ...
Sunday, December 5, 2010 at 12:40pm by DrBob222

Chemistry
You're just working another stoichiometry problem. 2 g ZnO = how many moles. moles = grams/molar mass. ??moles ZnO x (4 moles Au/6 moles ZnO = xx moles Au. Convert moles Au to grams.
Monday, February 7, 2011 at 7:20pm by DrBob222

Chemistry!
moles CaCl2 = M x L = ?? moles Ca^+2 = same moles Ca3(PO4)2 = M x L = ?? moles Ca^+2 = 3x that. Assuming the volumes are additive, M = total moles/total volume.
Tuesday, December 14, 2010 at 5:24pm by DrBob222

Chemistry
Given the balanced equation representing a reaction : 2Fe+ 3Cu^2+ --> 2Fe^3+ +3Cu When the iron atoms lose six moles of electrons, how many moles of electrons are gained by the copper ions? (1) 12 moles (2) 2 moles (3) 3 moles (4) 6 moles how would i even start solving a ...
Sunday, February 16, 2014 at 5:16pm by Anonymous

Chemistry
Mg + 2HCl ==> H2 + MgCl2 Convert 5.00 g Mg to moles. moles = grams/molar mass Using the coefficients in the balanced equation, convert moles Mg to moles HCl. You know moles HCl = M x L. You moles and M, solve for L.
Tuesday, October 19, 2010 at 7:51pm by DrBob222

chemistry
moles = M x L For Na2S, 0.01 x 0.002 = 2 x 10^-5 moles moles Hg(NO3)2 = 0.0005 x (50/1000)= 2.5 x 10^-5 moles Limiting reagent is Na2S. (The set up for Na2S by bun is correct but math is not; answer is 2 x 10^-5 moles and not 2 x 10^-3 moles.
Friday, August 13, 2010 at 8:53am by DrBob222

Chemistry
Convert 7.52 g NaOH to moles. moles = grams/molar mass. Convert the solution to moles. moles = M x L. Add the moles to find total moles and divide by total volume (in liters which means you must convert 1.95 gallons to liters).
Thursday, September 23, 2010 at 8:48pm by DrBob222

Chemistry
Find the moles of OH- = moles NaOH moles OH- = (liters)(molar concentration) moles of HX = moles of OH- molar mass = (grams of HX) / moles HX
Thursday, February 19, 2009 at 12:08pm by GK

chemistry
Use PV = nRT and calculate n, number of moles. Using the coefficients in the balanced equation, convert moles N2 to moles NaN3. Now convert moles NaN3 to grams. g = moles x molar mass.
Monday, April 19, 2010 at 9:01pm by DrBob222

chemistry
I will do one. first: moles HCL=.030*.3=.009 moles moles base=.035*.3=.015 moles so you have excess of .006 moles OH pOH= -log (.006/.65) then pH= 14-pOH
Tuesday, April 10, 2012 at 8:49pm by bobpursley

CHEMISTRY
a. if you have 3 moles of O2, 3 moles of Li, you are limited by the Li. You should get then the mole ratio of product to Li (2/4) times the moles of Li, or 2/4*3 moles Li2O b. You will be limited by three moles of H2. You get then 2Fe, and 3H2o c. you will be limited by the ...
Wednesday, October 31, 2012 at 1:48pm by bobpursley

chemistry
1. You have the balanced equation. 2. Convert 11.86 g (NH4)2CO3 t moles. moles = grams/molar mass. 3. Using the coefficients in the balanced equation, convert moles (NH4)2CO3 to a. moles NH3, b. moles CO2, c. moles H2O. 4. Use PV = nRT with total moles = n. Check my thinking.
Friday, April 16, 2010 at 4:12pm by DrBob222

Chemistry
Convert 1.4 g Ba(OH)2 to moles. moles = grams/molar mass Using the coefficients in the balanced equation, convert moles Ba(OH)2 to moles HNO3. Finally, M = moles/L soln. You have M HNO3 and moles HNO3, solve for L.
Thursday, September 23, 2010 at 8:12pm by DrBob222

chemistry
Fe2O3(s) + 2CO(g)-->2Fe(s)+ 2CO2(g) Convert 4.00 kg Fe2O3 to moles. moles = grams/molar mass. Now look at the balanced equation. 1 mole Fe2O3 requires 2 moles CO and produces 2 moles Fe and 2 moles CO2.
Thursday, November 5, 2009 at 2:13pm by DrBob222

Chemistry
I can not determine the answer for this problem...can someone please help me? Determine the number if moles of MgO that form from the reaction of 4.4 moles of O2 in the following unbalanced reaction: Mg + O2 ----> MgO The balanced equation is: 2Mg + O2 -----> 2MgO a. 1.1...
Thursday, September 10, 2009 at 11:42am by Jessica

chemistry
Rose, all of these stoichiometry problems are worked the same way. Step 1. Write the balanced equation. 2NaHCO3 + heat ==> Na2CO3 + H2O + CO2 Step 2. Convert what you have (in this case g NaHCO3) to moles. moles = grams/molar mass Step 3. Using the coefficients in the ...
Saturday, October 17, 2009 at 11:09pm by DrBob222

chemistry
Convert 2.40 g Cu to moles. moles = grams/molar mass Using the coefficients in the balanced equation, convert moles Cu to moles HNO3. Molarity = moles/L. YOu know moles HNO3 and M HNO3, calculate L.
Wednesday, April 28, 2010 at 12:35pm by DrBob222

chemistry
moles OH^- = 1.1L x 0.1M = ?? moles Ba(OH)2 = 1/2 that. Convert moles Ba(OH)2 to moles Ba (using the coefficients in the balanced equation)/ Convert moles Ba to grams Ba. g = moles x molar mass.
Saturday, February 19, 2011 at 7:50pm by DrBob222

Chemistry
Just back track, 76.7g of CO2*(1 mole of CO2/44.01g of CO2)= moles of CO2 8 moles of CO2=2 moles of C4H10 moles of CO2*(2 moles of C4H10/8 moles of CO2)=moles of C4H10 moles of C4H10 *(58.12g of C4H10/mole of C4H10)= mass of C4H10 *******I did not check the balanced equation, ...
Tuesday, February 26, 2013 at 5:49pm by Devron

chemistry
Convert 12.0 g Na to moles. moles = grams/molar mass. Using the coefficients in the balanced equation, convert moles Na to moles H2. Use PV = nRT with p in atm, n is moles, and T in Kelvin to determine volume in L.
Wednesday, May 19, 2010 at 8:52pm by DrBob222

chemistry
moles LiOH = M x L. Using the coefficients in the balanced equation, convert moles LiOH to moles CO2 used in the reaction. Now use PV = nRT to calculate moles CO2 initially, subtract moles CO2 used (from above), then convert moles CO2 remaining to grams. g = moles x molar mass...
Saturday, October 2, 2010 at 12:36am by DrBob222

Chemistry
Let x moles of He=moles of He at 2.88L 1.20g *(1 moles/4.0026g)= moles of He at 7.20L moles of He/7.20L= x moles of He/2.88L Solve for x moles of He, x moles of He=(moles of He/7.20L)*2.88L
Saturday, March 23, 2013 at 2:23am by Devron

chemistry
The stoichiometry point is when moles acid = moles base. moles base = M x L = ? moles acid = moles base moles acid = M x L. You know moles and M, solve for L and convert to mL.
Saturday, December 3, 2011 at 4:02pm by DrBob222

Chemistry
If you mix them, then M HCl x L HCl = moles HCl M NaOH x L NaOH = moles NaOH. What's left depends upon how many moles of each solution we had. These react 1:1; therefore, larger moles - smaller moles = moles left, then H^+ or OH^- (depending upon which is in excess) = moles/...
Tuesday, October 26, 2010 at 4:38pm by DrBob222

Chemistry
Make sure the equation is balanced. moles Ba(OH)2 = M x L. moles HClO4 = M x L. From the question, I assume Ba(OH)2 is in excess and HClO4 is the limiting reagent. If so, use the coefficients in the balanced equation to convert moles HClO4 to moles Ba(OH)2 used. The difference...
Tuesday, February 16, 2010 at 3:34am by DrBob222

chemistry
You mean AgCl instead of NaCl. Calculate moles AgC2H3O2. moles = M x L. Do the same for MgCl2. Look at how the moles combine and convert to moles AgCl. One of the reagent will be the limiting reagent unless you have stoichiometric amounts present. Then convert moles AgCl to ...
Sunday, February 28, 2010 at 8:55pm by DrBob222

chemistry
2HNO3 + Ca(OH)2 ==>Ca(NO3)2 + 2H2O Moles HNO3 initially = M x L Moles Ca(OH)2 required is 2 x moles HNO3 (because o the equation 1 mol Ca(OH)2 = 2 moles HNO3). Then moles Ca(OH)2 = L x M You know moles and M, calculate L, then multiply by 1000 to convert to mL.
Wednesday, September 30, 2009 at 1:40pm by DrBob222

chemistry
mols HCl used = M x L = ? Now use the coefficients in the balanced equation to convert moles HCl to moles CaCO3. moles HCl x (1 mole CaCO3/2 moles HCl) = ?moles HCl x 1/2 = xx moles CaCO3. grams CaCO3 = moles x molar mass and convert to mg.
Tuesday, November 15, 2011 at 9:24am by DrBob222

chemistry
2C4H10 + 13O2 ==> 8CO2 + 10H2O Use the coefficients in the balanced equation to convert from moles of one thing to moles of any other in the same equation. moles butane = 3.5 moles H2O x (2 moles butane/10 moles H2O) = 3.5*(2/10) = ??
Thursday, November 4, 2010 at 1:27am by DrBob222

Chemistry
Change C to moles. 8.53 g/12.01 = ?? mols Now convert moles TiO2 to moles of any one of the products, say TiCl4. Convert moles C to moles TiCl4. That will give you the limiting reagent; either TiO2 or C. Using the limiting reagent (which I assume will be C), convert moles C to...
Tuesday, February 10, 2009 at 7:17pm by DrBob222

chemistry
Convert 5,000 kg NH3 to moles. Convert 5,000 kg O2 to moles. Convert 5,000 kg CH4 to moles. Now convert each of those moles, individually, to moles of the product (HCN). The reactant producing the smallest number of moles HCN will be the limiting reagent. Then convert that ...
Sunday, February 1, 2009 at 8:20pm by DrBob222

chemistry
1. Convert MgCl2 to moles. moles = M x L. 2. Using the coefficients in the balanced equation, convert moles MgCl2 to moles K3PO4. 3. Remembering M = moles/L, you have moles and you have M, calculate L and convert to mL.
Wednesday, March 10, 2010 at 11:49pm by DrBob222

Chemistry
14.4 moles C atoms will have 14.4/3 moles propane (C3H8) molecules and 8x that for moles H atoms. Then add moles C + moles H.
Friday, September 30, 2011 at 10:56pm by DrBob222

Chemistry
Na2CO3 + 2HCl ==> 2NaCl + H2O + CO2 Convert 20.1 g CO2 to moles. moles = grams/molar mass. Using the coefficients in the balanced equation, convert moles CO2 to moles HCl. Now convert moles HCl to M. M = moles/L of solution.
Tuesday, November 30, 2010 at 3:16pm by DrBob222

Chemistry
3Cu+8HNO3--> 3Cu(NO3)2+ 2NO+4H2O How many moles of HNO3 are required to react with 6 moles of Cu? How many moles of Cu(NO3)2 are produced when 3 moles of Cu react? How many moles of Cu must react to produce 4 moles of NO? If 4 moles of NO are produced, how many moles of H2O...
Thursday, July 24, 2008 at 6:30pm by Andy

Chemistry
35g of Al*(1mole of Cl/35.45g)= mole of Cl 3 moles of Cl= 2 moles of AlCl3 moles of Cl *(2 moles of AlCl3/3 moles of Cl)= moles of AlCl3 moles of ALCl3 *(133.34 g of AlCl3/mol)= mass of AlCl3
Tuesday, February 26, 2013 at 8:51pm by Devron

chemistry
2NaOH + H2SO4 ==> 2H2O + Na2SO4 moles NaOH = M x L = ? Convert moles NaOH to moles H2SO4 by using the coefficients in the balanced equation. That will be ?moles NaOH x (1 mole H2SO4/2 moles NaOH) = ?moles NaoH x (1/2) = x moles H2SO4. Then M H2SO4 = mols H2SO4/L H2SO4.
Saturday, November 19, 2011 at 9:01pm by DrBob222

Chemistry
1. Write the equation and balance it. 2. Convert 27.0 g Cr to moles. moles = grams Cr/atomic mass Cr. 3. Using the coefficients in the balanced equation (that's the ratio the book is talking about), convert moles Cr to moles Al. It will look like this. moles Cr(from step 1) x...
Wednesday, April 7, 2010 at 5:30pm by DrBob222

chemistry
Fe+2 + 2NaOH ==> Fe(OH)2 + 2Na^+ How many moles Fe^+2 do you have? M x L = moles. So look at the equation and determine the moles of NaOH required to react with this many moles iron(II). Then grams NaOH = moles x molar mass.
Monday, January 11, 2010 at 8:59pm by DrBob222

chemistry
M = moles/L You know how many moles reagent you started with, you must end up with that many moles CH3MgCl if the yield is 100% OR perhaps you weighed out the Mg and you will know how many moles of that you started with.
Saturday, April 9, 2011 at 11:40pm by DrBob222

Chemistry
Same as the HX problem except the equation is not 1:1. 2HCl + Ca(OH)2 ==> 2H2O + CaCl2 moles Ca(OH)2 = grams/molar mass moles Ca(OH)2 x 2 = moles HCl required. moles HCl = M x L. You have moles and M, solve for L.
Thursday, February 19, 2009 at 12:12am by DrBob222

chemistry
2NI3 ==> N2 + 3I2 5.50 g NI3 = ?? moles. moles = grams/molar mass. Using the coefficients in the balanced equation, convert moles NI3 to moles N2 and to moles I2. N2 should be 1/2 moles NI3 and I2 should be 3/2 moles NI3. Then use PV = nRT with new conditions of T etc to ...
Saturday, October 9, 2010 at 5:22pm by DrBob222

chemistry
a) Convert 15.9 L C2H2 to moles. moles = L/22.41. Convert moles C2H2 to moles CO2 using the coefficients in the balanced equation. b) Convert 59.3 mL O2 to moles, convert moles O2 to moles CO2, convert moles CO2 to mL. Post your work if you get stuck.
Wednesday, June 2, 2010 at 5:46pm by DrBob222

chemistry
M = moles/L moles = grams/molar mass moles NaOH = 5.80 g/40 = moles and that will be the molarity since it is in 1 L of solution. Then pOH = -log(OH^-) and pH + pOH = 14.
Wednesday, April 28, 2010 at 4:13pm by DrBob222

chemistry
C6H12O6(s) +6CO2(g) +6H2O9g) 1) given 2 moles of glucose and 14 moles of O2, how many moles of CO2 could be produced? 2) which is the limiting reactant ? 3) how many moles of the excess reactant remain?
Sunday, May 23, 2010 at 4:15pm by Mickey

chemistry
You start with the definition of molarity. M = moles/L. moles Fe(NO3)3 = M x L = ?? moles NO3^- will be 3x that. moles Mg(NO3)2 = M x L = ?? moles NO3^- will be 2x that. Then M NO3^- = total moles NO3^-/total volume in L.
Monday, December 13, 2010 at 3:32pm by DrBob222

Chemistry honors
a. calculate the moles of LiOH in 155grams, then half of that moles it the moles of CO2, convert that to grams. b. convert 102 grms CO2 to moles. What percent of the moles of CO2 in a is that?
Tuesday, January 22, 2013 at 6:15pm by bobpursley

chemistry
Grams don't convert to liters or to molarity.. Grams converts to moles. moles = grams/molar mass. Then you use the equation to convert moles of one material to moles of the other. If you have M and L, then moles = M x L. So just follow the steps. Convert 1.87 grams NaHCO3 to ...
Saturday, July 23, 2011 at 4:25pm by DrBob222

Chemistry
H2Ox + 2NaOH ==> 2H2O + Na2Ox moles H2Ox = grams/molar mass Convert moles H2Ox to moles NaOH using the coefficients in th balanced equation. That will give you moles NaOH = 2 x moles H2Ox. Then M NaOH = moles NaOH/L NaOH.
Saturday, March 26, 2011 at 11:39pm by DrBob222

chemistry
moles H2C2O4 = grams/molar mass moles x (10/100) = moles in 250 mL. M = moles/0.250 = ??
Friday, November 18, 2011 at 1:00pm by DrBob222

Chemistry(Please help)
So far so good. Xaspirin = moles aspirin/total moles. XCHCH3 = moles CHCl3/total moles.
Sunday, February 19, 2012 at 4:16pm by DrBob222

chemistry
1. Calculate moles Na2CO3. moles = M x L. 2. Using the coefficients in the balanced equation, convert moles Na2CO3 to moles HNO3. 3. Now convert moles HNO3 to volume. M = moles/L. YOu have M and moles, solve for L, then convert to mL. 4. For g CO2, step 1 and 2 are the same. ...
Monday, June 21, 2010 at 2:53pm by DrBob222

chemistry
molarity = # moles/liter of solution. So how many moles do we want for 500 mL of 0.02 M KMnO4? We want M x L = moles = 0.02 x 0.5 L = 0.01 moles. moles = grams/molar mass. You know moles and molar mass, calculate grams.
Saturday, October 24, 2009 at 2:28pm by DrBob222

chemistry
You shouldn't round until the final step. 17.24/81.39 = ?? moles ZnO 6.87/26.46 = ?? moles HCl. Now, using the coefficients in the balanced equation, convert moles ZnO to moles ZnCl2. (You can see how that is done by following the proper step in the first link I gave you.) Do ...
Wednesday, September 8, 2010 at 7:42pm by DrBob222

Chemistry
Use the coefficients in the balanced equation to convert moles of one thing into moles of anything else. 1.6 moles isopropyl alcohol x (9 moles O2/2 mol isopropyl alc) = 1.6*(9/2) = ??
Sunday, December 5, 2010 at 12:33pm by DrBob222

Chemistry
moles benzoic acid = grams/molar mass moles NaOH = moles benzoic acid M = moles/L. You know M and moles. Calculate L.
Friday, November 20, 2009 at 6:13pm by DrBob222

chemistry
M = moles/L soln 0.05 = moles/0.250L moles = 0.05 x 0.250 = 0.0125 moles HCl Then moles x 22.4 = ?L HCl.
Thursday, January 26, 2012 at 10:57pm by DrBob222

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