(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Ok so I should know how to do this but I want to make sure.

The balanced equation involved is:

[tex]2Na_{3}PO_{4}*12H_{2}0+3BaCl_{2}*2H_{2}0\longrightarrow Ba_{3}(PO_{4})_{2}+6NaCl+30H_{2}0[/tex]

In the lab I obtained 6.6e-4 moles of [tex]Ba_{3}(PO_{4})_{2}[/tex]

and [tex]2Na_{3}PO_{4}*12H_{2}0[/tex] is limiting we found out.

I just need to convert moles of [tex]Ba_{3}(PO_{4})_{2}[/tex] to grams

[tex]2Na_{3}PO_{4}*12H_{2}0[/tex]. I know how to convert from moles grams etc. but i cant decide when i do the mole to mole ratio. do I use 2*12=8moles for the [tex]2Na_{3}PO_{4}*12H_{2}0[/tex] or just 2?

Thanks

2. Relevant equations

[tex]2Na_{3}PO_{4}*12H_{2}0+3BaCl_{2}*2H_{2}0\longrightarrow Ba_{3}(PO_{4})_{2}+6NaCl+30H_{2}0[/tex]

3. The attempt at a solution

I know how to convert from moles grams etc. but i cant decide when i do the mole to mole ratio. do I use 2*12=8moles for the [tex]2Na_{3}PO_{4}*12H_{2}0[/tex] or just 2?

Thanks

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# Homework Help: Simple Stioch

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