How to Improve Communication Skills Whether you’re delivering a presentation to a room full of conference attendees or hashing out a disagreement with your partner, many of the skills you need to achieve your goals in these different scenarios will be the same.
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Question: Experiment: (?)-B Standardization of HCl with Na2CO3 Sodium carbonate can serve as a primary standard for the determination of the exact concentration of a hydrochloric acid solution. The equation for the reaction is: Reaction Stoichiometry: Na2CO3 + 2HCI → 2NaCI+ CO2 + H20 Imole Na2CO3 2 mol HCI At the equivalence point of this titration 2 equivalents of
The dissolution reaction for solid Na2CO3 is written as following: Na2CO3 (s) → 2Na+ (aq) + CO32- (aq) The (s) denotes solid state, and (aq) denotes aqueous or dissolved in water. In the next step, when the ionic solid has dissolved, the anion (carbonate ion) can react as a base, with water as the acid. The net acid-base reaction is given below: H2O + CO32- → HCO3- + OH- Learn more about ...
Question: A salt solution weighing 10 000 kg with 30 wt% Na2CO3 is cooled to 293 K. The salt crystallizes as decahydrate. a. What will be the yield of Na2CO3 10H2O crystals if the solubility is 21.5 kg of anhydrous Na2CO3/100 kg of total water if no water is evaporated? (Ans. 6370 kg) b. What will be the yield if 3% of total weight of the solution is lost by