# Chemistry

posted by .

If 0.670mol of liquid Br2 and 460mL of 1.72M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many moles of liquid Br2 remain? Round answer to 3 sig figs.

2NaI(aq) + Br2(l) -> 2NaBr(aq) + I2(s)

MM of Br2 = 159.81 g/mol
MM of NaI = 149.89 g/mol
Density of Br2 = 3.12g/mL
Molar Volume = 22.4L at STP
Gas Constant = 0.0821

• Chemistry -

This is a limiting reagent problem.
Determine moles Br2. You have that in the problem. Determine moles NaI from moles = M x L. Look at the equation. It will taake twice as much NaI to react so if you have twice as much NaI as Br2, then Br2 will be the limiting reagent and you will have NaI remain. From the way the problem is stated, I assume NaI is the limiting reagent and Br2 will remain. You can tell from the moles of each. Post your work if you get stuck.

## Similar Questions

1. ### Chem

If 390 mL of 0.0410 M aqueous NaI(aq) and 1.36 g of liquid Br2 are reacted stoichiometrically according to the equation, what mass (g) of NaI(aq) remained?
2. ### Chemistry

If 0.720 mol of gaseous Cl2 and 390 mL of 0.641 M aqueous NaBr are reacted stoichiometrically according to the balanced equation, how many moles of gaseous Cl2 remain?
3. ### Chemistry

If 750 mL of 0.893 M aqueous NaBr and 11.6 L of gaseous Cl2 measured at STP are reacted stoichiometrically according to the balanced equation, how many milliliters of 3.93 M aqueous NaCl are produced?
4. ### Chemistry

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?
5. ### college chemistry

If 0.490 mol of Pb(NO3)2 and 130 mL of 1.08 M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many moles of Pb(NO3)2 remain?
6. ### chemistry

If 890 mL of 0.236 M aqueous NaI and 0.560 mol of liquid Br2 are reacted stoichiometrically according to the balanced equation, how many moles of liquid Br2 remain?
7. ### chemistry

If 890 mL of 0.236 M aqueous NaI and 0.560 mol of liquid Br2 are reacted stoichiometrically according to the?
8. ### chemistry

If 73.5 g of liquid Br2 and 330 mL of 1.18 M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many grams of liquid Br2 remain?
9. ### chemistry help

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants?
10. ### chem

Which equation shows a reaction that will occur at room temperature and pressure?

More Similar Questions