Number of results: 977
Here is a reaction: 2Al+3H2SO4--->Al2(SO4)+3H2 determine the oxidation numbers of each element in both the rectants and the products of this oxidation reduction reaction of aluminum and sulfuric acid? Which element is oxidized in this reaction? Which element is rduced in ...
Tuesday, January 9, 2007 at 4:15pm by chrissy
Chem in relation to Beuatiful's question
The question says Sufuric acid reacts with Aluminum hydroxide by double replacement. I have the reactant side I just need the product side because I need to know does aluminium replace Hyrdrogen, really confused hydroxides react with acids to form a salt and water. Products ...
Sunday, February 25, 2007 at 11:57am by Ms. J
If 20.0 grams of Al is placed into a solution containing 115 grams of H2SO4, how many grams of hydrogen gas could be produced? 1. Write the balanced equation. 2Al + 3H2SO4 ==> Al2(SO4)3 + 3H2 2. Convert 20.0 g Al to mols. Remember mols = g/atomic mass 3. Using the ...
Sunday, March 18, 2007 at 8:28pm by Britney
Aluminum reacts with sulfuric acid, which is the acid in car batteries. If 20.0 grams of Al is placed into a solution contain 115 gram of H2SO4, how many grams of hydrogen ga could be be produced? 2Al + 3H2SO4 ---> Al(SO4)3 + 3H2 20.0g/27 = .741 .741 X 3/2 = 1.11 1.11 X 2...
Tuesday, May 15, 2007 at 4:03pm by mike
For an example of charge balance in my text it says Write a charge balance eqzn for an aqueous sol that contains NaCl, Ba(ClO4)2, & Al2(SO4)3 The answer given is: [Na+] + [H30+] + 2[Ba+] + 3[Al3+]= [ClO4-] + [NO3-] + 2[SO42-] + [HSO4-] + [OH-] I know that the rxns are: NaCl=&...
Monday, July 16, 2007 at 12:20am by christina
Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s) + 3H2SO4(aq) -> Al2(SO4)3(aq) + 3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 15.9g . A)What minimum mass of H2SO4 (in g) would you need? [***A=86.7g***] B)What mass ...
Saturday, October 20, 2007 at 4:18am by leo
Start by writing the equation for the chemical reaction 2 Al + 3 H2SO4 -> Al2(SO4)3 + 3 H2 Convert the masses of Al and H2SO4 to moles to find which is the limiting reactant If is is H2SO4, the number of moles of H2 formed will equal the number of H2SO4 moles present. Maybe...
Saturday, October 20, 2007 at 7:14pm by drwls
Compounds must be zero charge; therefore, you make the charges add to zero. If H is +1 and SO4 is -2, then H2SO4 is what it takes. You can check it out. The subscript of 2 on H multiplies the number by 2; therefore, 2 x +1 charge = 2 + charges for H. For SO4, it is -2. Then +2...
Saturday, December 1, 2007 at 2:11am by DrBob222
I think you mean Al reacts with sulfuric acid..... Write the equation and balance it. Convert 250 g H2SO4 to mols. mols = grams/molar mass. Using the coefficients in the balanced equuation, convert mols H2SO4 to mols Al2(SO4)3. Finally, ocnvert mols Al2(SO4)3 to grams. grams...
Sunday, December 9, 2007 at 5:44pm by DrBob222
Use the equation below to answer the following questions. Al + H2SO4 ==> Al2(SO4)3 + H2 A. If 8.15 moles of aluminum are reacted, how many moles of hydrogen will be produced? B. If 44.7 g of hydrogen sulfate is reacted, what mass of aluminum sulfate is produced? C. If 34.6 ...
Friday, February 29, 2008 at 4:13pm by katie
You need to balance the equation. 2Al + 3H2SO4 ==> Al2(SO4)3 + 3H2 Now use the coefficients to convert mols Al to mols H2. mols H2 = mols Al x (3 mols H2/2 mols Al) = ?? Note how the mols Al cancel to leave mols H2. That is how you know if the conversion factor you are ...
Friday, February 29, 2008 at 4:13pm by DrBob222
First you must know the charge on the polyatomic ion. If you know that, as you do in SO4^-2, then you make the +charges and the - charges add to zero (since molecules are neutral). Therefore, the formula for aluminum sulfate is Al2(SO4)3. Here is a web site that gives the ...
Friday, March 7, 2008 at 10:43pm by DrBob222
I don't know that anyone would be surprised that you are having trouble converting benzene and O2 to Al2(SO4)3 and Cu.
Tuesday, August 30, 2011 at 8:34pm by DrBob222
how to balance these equations S8+Fe- Fe2S3 C6H14+O2- CO2+H2O Al(No3)3+H2SO4 -Al2(SO4)3+HNO3 Bi@S3+HCl-BiCl3+H2S
Tuesday, March 11, 2008 at 4:40pm by Anonymous
In lab, we did an experiment with electrochemical cells with solutions of ZnSO4, CuSO4, Al2(SO4)3 and MgSO4 and their respective metal electrodes. There are a couple of post-lab questions that I'm not sure about: (1) Summarize Part A with a data table containing the headings: ...
Friday, May 16, 2008 at 1:00am by Donna
n lab, we did an experiment with electrochemical cells with solutions of ZnSO4, CuSO4, Al2(SO4)3 and MgSO4 and their respective metal electrodes. There are a couple of post-lab questions that I'm not sure about: (1) Summarize Part A with a data table containing the headings: ...
Friday, May 16, 2008 at 1:00am by DrBob222
Last week i did a lab and i just wanted to show you my results because my computer was acting weird when i used the voltage probe.(I just needed you to check that the cathode and anodes and voltages make sense) CuSO4(cathode)and Al2(SO4)3 (anode)--[0.050V] cuSO4(anode) and ...
Friday, May 16, 2008 at 8:57pm by Amy
I can't check any of the voltages; I assume these were at other than 1 M. For the Al/Cu (#1 below) the voltage would be about 2.0 volts for 1 M solutions of each. Also, it MIGHT be possible, for some that I have suggested as the other way around below, could be correct if the...
Friday, May 16, 2008 at 8:57pm by DrBob222
summarize part a ( the data i showed you) in a data table containing heading: anode, cathode, overall cell reaction, and cell potential . for each cell combination, write the anode half reaction, the cathode half reaction, the overall reaction in the cell notation ( the ...
Friday, May 16, 2008 at 11:42pm by amy
1. Write the equation. 2. Convert 250 g H2SO4 to mols. mols = g/molar mass. 3. Convert mols H2SO4 to mols Al2(SO4)3 using the coefficients in the balanced equation. 4. Convert mols Al2(SO4)3 to grams. g = mols x molar mass. 4.
Friday, May 30, 2008 at 2:46pm by Anonymous