describe and show a chemical reaction between Ferrosilicon (Fesi) suspension in water with CaO if there is any

If the normality of HCl is greater by 10% compared to KOH, estimate the normality of the HCl solution when 0.67 gram of (NH4)2SO4, is dissolved in water, treated with excess NaOH and the ammonia released is passed through a solution of 20 ml of HCl. The excess acid solution is titrated using 15.01 ml of KOH solution.

The arsenic in a 1.22-g sample of a pesticide was converted toAsO43- by suitable chemical treatment. It was then titratedusing Ag+ to form Ag3AsO4 as a precipitate. (a) What is theoxidation state of As in AsO43-? (b) Name Ag3AsO4 by analogyto the corresponding compound containing phosphorusin place of arsenic. (c) If it took 25.0 mL of 0.102 M Ag+to reach the equivalence point in this titration, what is themass percentage of arsenic in the pesticide?

3.1 9 (a) Define and write the expression of Kw for the dissociation of water (H₂O). Kw is the of Kw= (b) Calculate the pH of 0.1mol dm³ potassium hydroxide (KOH(aq)) pH =

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. How is the strength of an acid related to the fact that a competition for protons exists in aqueous solution between water molecules and the anion of the acid?

The sec-butyl cation can react as both a Brnsted-Lowry acid (a proton donor) and a Lewis acid (an electron pair acceptor) in the presence of a watersulfuric acid mixture. In each case, however, the product is different. The two reactions are as follows: (a) In which reaction(s) does this cation react as a Lewis acid? In which reaction(s) does it react as a Brnsted-Lowry acid? (b) Write Lewis structures for reactants and products and show by the use of curved arrows how each reaction occurs.

Which of the following compounds would be classified as a salt? a.Na2CO3 b.Ca(OH)2 c.H2CO3 d.CH3OH

I don't get how to do this question:  Discuss what is present in the resulting solution when 15.0 mL of 0.1 M HCl is added to 15.0 mL of 0.1 M NaOH. Support your response with the relevant calculations and balanced chemical equation. (2).

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