Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
nid404:
check the X axis of the graph...the solution contains 8 cm3 of phosphate that has reacted....the volume of the solution, after this point is constant(which implies that only 8cm3 of phosphate has reacted)
holtadit:
could u show me the steps please.
nid404:
--- Quote from: Ari Ben Canaan on December 21, 2009, 11:41:27 am ---could u show me the steps please.
--- End quote ---
for the b) part right? like the formula of the compound?
holtadit:
like how would u do it with a proper explanation. I want to know exactly what your thinking and doing when u solve for the formula.
nid404:
sorry for taking so long...some important calls
Anyway
Na3PO4+ nTx(NO3)y----> NaNO3+ Tnx(PO4)z
all the variables are unknown at present
U know the reaction will give sodium nitrate which has the formula NaNO3[/sub]....now u also know the volume of the product is 8cm3
the volume of sodium phosphate is 2cm3...
The mole ratio of sodium phosphate and Tnitrate is 2:3, when u try to balance for NaNO3...and u get (NO3)2. The product side has 6NaNO3
This gives us the charge on T as +2...since (NO3)2-...u know PO4 will be twice and thus T will be thrice cuz of the charges
Little weird to understand...ill put down the balanced equation, which is likely to make it easy for u to figure it out
2 Na3PO4+ 3 T(NO3)2---->6NaNO3+ T3(PO4)2
I'll try explaining again...i tried my best to explain tho...
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