Into form 2 Liters of H2O you dissolve 106 g of Na2CO3 and 14.2 g P2O5
The P2O5 reacts in water to form H3PO4
The H3PO4 reacts with Na2CO3 to Na2HPO4.

What is the concentration of all compounds?

Question

Into form 2 Liters of H2O you dissolve 106 g of Na2CO3 and 14.2 g P2O5
The P2O5 reacts in water to form H3PO4
The H3PO4 reacts with Na2CO3 to Na2HPO4.

What is the concentration of all compounds?

wolfe8 · Answer

Hello and welcome to OpenStudy. Use the fomula c=n/V where n is the number of mole. Can you find the number of mole? Use this: http://erhs.rcsnc.org/UserFiles/Servers/Server_4766394/Image/Donna%20Scofield/mole%20conversion%20map.bmp

anonymous · Answer

I would like some help in the methodology of solving this problem

nottim · Answer

look up dimensional analysis

anonymous · Answer

I don't need help with dimensional analysis

anonymous · Answer

how would you start this problem after the conversion to moles?

wolfe8 · Answer

Use the formula I gave you.

anonymous · Answer

ok I got 1.001 M of Na2CO3 and .1 M P2O5. what now/

wolfe8 · Answer

Those are the number of moles. I said after that use the formula I gave you: c=n/V

anonymous · Answer

.5005 M Na2CO3  and .05 M P2O5 what now?

wolfe8 · Answer

Those are the concentrations. The unit will be mol/l in this case because you divided the number of mole with volume in liters