Homework Help: Chemistry

Posted by Keri on Tuesday, February 23, 2010 at 5:24pm.

If 0.870 mol of liquid Br2 and 720 mL of 0.958 M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many grams of solid I2 are produced?

2NaI(aq) + Br2(l) → 2NaBr(aq) + I2(s)

help please. :)

Chemistry - DrBob222, Tuesday, February 23, 2010 at 5:29pm
A limiting reagent problem.
1. Write the balanced equation.
2. You have Br already in mols.
3. Convert NaI to moles. moles = M x L.
4a. Using the coefficients in the balanced equation, convert moles Br2 to moles I2.
4b. Using the same procedure, convert moles NaI to moles I2.
4c. It is likely that the moles I2 produced will not be the same from 4a and 4b. Obviously, one of them in not correct. The correct answer in limiting reagent problems is ALWAYS the smaller value.
5. Now convert moles I2 from 4c to grams. g = moles x molar mass.

Answer this Question

Related Questions

chemistry - If 890 mL of 0.236 M aqueous NaI and 0.560 mol of liquid Br2 are ...
chemistry - If 890 mL of 0.236 M aqueous NaI and 0.560 mol of liquid Br2 are ...
Chemistry - If 0.670mol of liquid Br2 and 460mL of 1.72M aqueous NaI are reacted...
chemistry - If 73.5 g of liquid Br2 and 330 mL of 1.18 M aqueous NaI are reacted...
Chem - If 390 mL of 0.0410 M aqueous NaI(aq) and 1.36 g of liquid Br2 are ...
college chemistry - 1) If 740. mL of 0.06622 M aqueous NaI and 370. mL of 0....
chemistry - If 380. mL of 0.4294 M aqueous CaBr2 and 250. mL of 0.5880 M aqueous...
chemistry - If 740. mL of 0.06622 M aqueous NaI and 370. mL of 0.07151 M aqueous...
Chemistry - If 0.720 mol of gaseous Cl2 and 390 mL of 0.641 M aqueous NaBr are ...
chemistry - If 600 mL of 1.05 M aqueous CaCl2 and 720 mL of 0.792 M aqueous ...

For Further Reading

First Name:
School Subject:
Answer: