[SOLVED] Determine the mass of sodium chloride produced when 2.5 moles of chlorine ga

BittersweetLove

Okay...I know how to solve half the problem. I know how to balance the problem but I'm not sure what to do next. I'm really bad at this stuff.

Here's the question:

Determine the mass of sodium chloride produced when 2.5 moles of chlorine gas reacts with sodium. Na + Cl2 NaCl (be sure to balance the reaction first!)

And this is the balanced equation:

2 Na + Cl2 = 2 NaCl

Anyone have any suggestions?

Invictious

Assuming it is reacting with excess sodium, Chlorine becomes the limiting reagent.
So the moles of NaCl should be 5 moles (since 2 : 1 = 2 stoichiometric ratio).
Using the formula:
#of moles = mass(g)/molar mass
Some basic algebra:
Mass = 5 x (22.99 + 35.45)
= 292.2 g

Hmmm...doesn't look right..
Did something wrong, anyone correct me please?

Gokul43201

Looks fine.

Keep in mind for the future that it is better to guide the OP through suggestions, questions and hints than to write up the complete solution. The former approach is often a much more effective teaching tool. And if you haven't already, please take a look at our posting Guidelines.

BittersweetLove

Thanks. Hopefully I'm remember that for the test. *fingers crossed* It seems easy enough but when you suck at this stuff, it's hard to remember everything. Thanks again. 8)

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Invictious	Assuming it is reacting with excess sodium, Chlorine becomes the limiting reagent. So the moles of NaCl should be 5 moles (since 2 : 1 = 2 stoichiometric ratio). Using the formula: #of moles = mass(g)/molar mass Some basic algebra: Mass = 5 x (22.99 + 35.45) = 292.2 g Hmmm...doesn't look right.. Did something wrong, anyone correct me please?

Gokul43201 Recognitions: Gold Member Science Advisor Staff Emeritus	Looks fine. Keep in mind for the future that it is better to guide the OP through suggestions, questions and hints than to write up the complete solution. The former approach is often a much more effective teaching tool. And if you haven't already, please take a look at our posting Guidelines.

BittersweetLove	[SOLVED] Determine the mass of sodium chloride produced when 2.5 moles of chlorine ga Thanks. Hopefully I'm remember that for the test. fingers crossed It seems easy enough but when you suck at this stuff, it's hard to remember everything. Thanks again. 8)