Forgot to post the other question for thisequation:
2)
2.00g of calcium was added to 500cm3 of 0.1moldm-3 and the solution was left until all the effervescence had stopped.
a) What volume of 2 moldm-3 NaOH solution would be needed to neutralise th remaining H3PO4?
PLease help showing all working out
does effervescence affect the calculations?
3ca(s) + 2H3PO4(aq) -> Ca3(PO4)2(aq)+3H2(g)
1)a reaction between calcium and a solution of 1.2moldm-3 phosphoric acid produced 3 mol of H2 gas.
a) Minimum volume of phosphoric acid would have been needed for reaction: I got 1.6cm3
b)Mass of calcium added tpo this acid? I got 120.3
c)Maximum amount of calcium phosphate that could be obtained by thi sprocess???
Please help with c and tell me f a and b are right
1 answer