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- The equation for a reaction by which a solution of sodium carbonate may be standardized is 2HC7H5O2+Na2CO32NaC7H5O2+H2O+CO2. A student determines that 5.038g of HC7H5O2 uses 51.89mL of sodium carbonate solution in the titration. Find the molarity of the sodium carbonate.Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the formula KHC8H4O4. This is often written in the short-hand notation as KHP. If 25.0mL of a potassium hydroxide solution are needed to neutralize 2.26g of KHP, what is the molarity of the potassium hydroxide solution? Potassium hydrogen phthalate sometimes called potassium biphthalate, as shown on this bottle is an acid that is convenient to store and use because it is a solid.Jj.193.
- 1. Determine the gravimetric factor in each of the following pair. Substance sought Substance weighed Gravimetric Factor Ca Сао Fe,0, Fe,04 CI AgCI Al Al,0, Mn Mn,P,0, Bi Bi,O3nd engy Level above Ferm; Level if prebabl.tg f enrgy levelis o03 and temportun is 6ookThe indicator of Moher regent is. O KCro4. O KMN04.
- A student adds one big iron nail each in four test tubes containing solution of zinc sulphate, aluminium sulphate, copper sulphate and iron sulphate. A reddish brown coating was observed only on the surface of iron nail which was added in the solution of:(a) Zinc sulphate(b) Iron sulphate(c) copper sulphate(d) Aluminium sulphateoptions are decreas / increase/ stay the sameRead and urete on the selection of a proper Indicator • What is an Indicator Chemistry Of work ? )u Factors which result in Indicator f an acıd/base Indicator (how does it Colour Chawge of an Indicator Cuhat is ?) range ranges of different lndicators Indicator which Indicafors reaction may be used for which Indicator • General rule for Cho.ce of an . Itow to determine range at which an Indicator whe of wHl Change colour
