Homework Help: Chemistry

Posted by David on Saturday, April 3, 2010 at 6:13pm.

Barium sulfate, BaSO4 is made by the following reaction.
Ba(NO3)2(aq) + Na2SO4(aq)----> BaSO4(s) + 2NaNO3(aq)

An experiment was begun with 91.77 g of Ba(NO3)2 and an excess of Na2SO4. After collecting and drying the product, 62.3 g of BaSO4 was obtained. Calculate the theoretical yield and percentage yield of BaSO4.

------?----------g of BaSO4 would be expected, hence we have-------?-------- % yield.

I got answer 119.45g and theoratical yield 52.1557 %

Chemistry - David, Saturday, April 3, 2010 at 6:13pm
Is that correct?
Chemistry - David, Saturday, April 3, 2010 at 6:40pm
please hlep me out, thanks
Chemistry - DrBob222, Saturday, April 3, 2010 at 7:09pm
I don't get those numbers.
1. Convert 91.77 g Ba(NO3)2 to moles. moles = grams/molar mass.

2. Using the coefficients in the balanced equation, convert moles Ba(NO3)2 to moles BaSO4.

3. Convert moles BaSO4 to grams. g = moles x molar mass. This is the theoretical yield. Post your work if yu get stuck.

Answer this Question

Related Questions

Chemistry - Barium sulfate forms as a precipitate in the following reaction: Ba(...
Chemistry - What volume (in mL) of 0.45 M Na2SO4 solution is needed to ...
Chemistry - how do u complete these questions? 2HCI(aq)+Pb(NO3)2(aq)---> ...
Help --->Chemistry - 1) Complete and balance the following chemical ...
Chemistry - A limiting reactants problem. 6.32g of sodium sulfate is reacted ...
chemisrty - Which of the following is an acid base reaction? C(s) + O2(g) &#...
chemistry - FeSO4 (aq) + Ba(OH)2 (aq) = BaSO4 (s) + Fe(OH)2 (s) 2Fe3+(aq) + 3SO4...
chemistry - Which of the following are redox reactions? (a) Ba(NO3)2 (aq) + ...
Chemistry - Choose the equations which correctly describe the dissolution of a ...
Chem - H2SO4(aq) + Ba(NO3)2(aq) = BaSO4(s) + 2HNO3(aq) overall heat gen by ...

For Further Reading

First Name:
School Subject:
Answer: