The following reaction of ZnO + H3PO4 --------- forming zinc phosphate Zn3(PO4)2 + water Given 500 ppm phosphoric acid how much zinc oxide is reacted to form zinc phosphate 500 ppm = 0.05% phosphoric acid. In this reaction 1000 ppm is reacted with 500 ppm phosphoric acid
The following reaction of ZnO + H3PO4 --------- forming zinc phosphate Zn3(PO4)2 + water
Given 500 ppm phosphoric acid how much zinc oxide is reacted to form zinc phosphate
500 ppm = 0.05% phosphoric acid.
In this reaction 1000 ppm is reacted with 500 ppm phosphoric acid
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The problem solved above needs some clarification In step 3 the phosphoric acid molarity is 0.0025 based on 0.005M 2 . The assumption is 0.005/2=0.0025M
However using the same math for ZnO we get 0.004 M not 0.003 M or 0.012/3. What am I missing ?
Further in step 2 you claim M = ppm (Mw) (1000) but this formula does not provide either answer as written unless you use ppm/Mw then divide the answer by 1000.
Please clarify the steps again more clearly.
Thank you
by Bartleby ExpertPlease clarify how you come up with 0.0075 M ZnO unreacted from the figures in Step 3 I am not clear on the procedure. In addition for zinc oxide you got 0.003 M while the equation gives 0.004 or 0.012/3 =0.004 M not 0.003 M
More defined steps would help immensely thanks
by Bartleby Expert
