Chemistry Help Forum Help with grams of reactant...
 User Name Save? Password

 Undergraduate Chemistry Forum Ask your undergraduate chemistry questions here.

 Thread Tools Display Modes
 Apr 16th 2013, 02:27 PM #1 AileenQ Junior Member   Join Date: Apr 2013 Posts: 1 Help with grams of reactant... A solution of 150.0 ml of 0.300 M NaOH is mixed with a solution of 200.0 mL of 0.150 M H2SO4. write a balanced equation and a net ionic reaction. what is the net ionic product? how many grams of net ionic product form? how many grams of the excess reactant is left (in the solution) I would appreciate any help on how to do this, I have tried already but want to see if I'm going about it correctly. a. Write a balanced equation & net ionic reaction. 2NaOH (aq) + H2SO4 (aq)-------->Na2SO4(aq)+SO42-(aq)+2H2O(l) Net ionic: OH-(aq) + 2H+(aq)------>H2O(l) b. What is the net ionic product? Would this be H2O...? c.How many grams of the net ionic product form? For this i calculated to find the limiting reactant and from my calculations, NaOH=0.0225 and H2SO4=0.03, so NaOH was my limiting reactant...so then I did: 150.0 mL NaOH x 1liter/1000 ml x 0.300 mol NaOH/1 liter x 2 mol H2O/2 mol NaOH x 18g H2O/1 mol H2O =0.81g H2O d. How many grams of the excess reactant is left (in the solution)? I dont know if I just dont understand what it's asking...so my excess reactant would be H2SO4 so would I just subtract my excess (0.03) and my limiting reactant (0.0225)? Or does it have to do with the H2O? Last edited by AileenQ; Apr 16th 2013 at 06:58 PM. Reason: Tried to work on it even further
 Apr 18th 2013, 10:49 AM #2 Unknown008 Senior Member     Join Date: May 2010 Location: Mauritius Posts: 1,685 Everything seems good to me For the last part, you only need to use your limiting reactant. Could you try it out? __________________ Jerry (Working, studying, writing and drawing :3) It is easier to protect your feet with slippers than to cover the earth with carpet. No one can go back and change a bad beginning; but anyone can start now and create a successful ending. If a problem can be solved, no need to worry about it. If it cannot be solved what is the use of worrying? Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime. Thank you for leaving a reputation to my post
 Apr 19th 2013, 04:45 AM #3 KOSNITA Junior Member   Join Date: Apr 2013 Posts: 17 For the first reaction i doubt about the balancing of the equation and the presence of SO42- on the right??

 Thread Tools Display Modes Linear Mode