PART IIL. SOLUBILITY 21. Predict if each of the following compounds is soluble o

Question

PART IIL. SOLUBILITY 21. Predict if each of the following compounds is soluble or insoluble: a) Fe(NOs)s b) PbSO4 c) (NH42SO4 d) Ca(PO4)2 e) Co2S PART IV. Stoichiometry - mole-to-mole conversions In questions 22-24, refer to the balanced equation 3 H2 N22NH and fill in the blanks using appropriate conversion factor, then complet e the calculation 22. How many moles of H2 are required to react with 9.0 moles N2? 9.0 moles Nzx 23. How many moles of NHs would be formed from 8.0 moles of H:? 8.0 moles H x many moles of Na are required to make 12.0 moles NHs? 12.0 moles NHsx

Explanation / Answer

a. Fe(NO3)3 soluble
b. PbSo4    insoluble
c. (NH4)2So4 soluble
d. Ca3(PO4)2 insoluble
e. Co2S3     insoluble

N2 + 3H2 ------------> 2NH3
1 moles of N2 react with 3 moles of H2
9 moles of N2 react with = 3mole of H2*9moles of N2/1mole   = 27 moles of H2

9 mole N2* 3   = 27 moles of H2 >>>>answer
23.
3 moles of H2 react with N2 to gives 2 moles of NH3
8 moles of H2 react with N2 to gives = 8 mole of H2*2 moles of NH3/3 mole ofH2 = 5.34 moles of NH3
24.
2 moles of NH3 produced from 1 moles of N2
12 moles of NH3 produced from = 1 moles of N2*12 moles of N2/2 moles of NH3
                               = 6 moles of N2

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