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Thermal decomposition of 2.765 g of NaHCO3 yields 1.234 g of solid Na2CO3. Calculate theoretical yield and % yield of Na2CO3.
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Thermal decomposition of 2.968 g of a mixture containing NaHCO3 lost 0.453 g. Calculate the percentage of NaHCO3 in this unknown mixture.
by Bartleby Expert- Thermal decomposition of 2.968 g of a mixture containing NaHCO3 lost 0.453 g. Calculate the percentage of NaHCO3 in this unknown mixture.Consider the reaction between H3PO4 and NH3 to produce (NH4)2HPO4. (a) What mass of ammonia would have to be added to 31.5 g of phosphoric acid if a 25% excess of ammonia is required? g(b) What is the theoretical yield of (NH4)2HPO4 under the conditions given in Part (a)?Lithium forms several useful organolithium compounds.Calculate the mass percent of Li in the following:(a) Lithium stearate (C₁₇H₃₅COOLi), a water-resistant grease used in cars because it does not harden at cold temperatures(b) Butyllithium (LiC₄ H₉), a reagent in organic syntheses
- Disulfur decafluoride is intermediate in reactivity between SF₄ and SF₆. It disproportionates at 150°C to these mono sulfurfluorides. Write a balanced equation for this reaction, and give the oxidation state of S in each compounda copper sample of mass 500g and purity 80% reacts with dilute nitric acid. a) Write the chemical equation of this interaction b) Calculate the volume of NO obtained under normal conditions d) calculate the mass of copper (II) nitrate obtainedAnswer the following questions by using short explanations. a) Why we add CaCl2 for the production of Na metal from its molten chloride? b) Explain the diagonal relationship. c) What is the basis of the air-bag safety system in automobiles ? d) What is the advantage of the Solvay Process?
- 1. What are the synthesis methods of cobalt(II) sulphate. 2. What are the the purification methods of cobalt(II) sulphate (CoSO4.7H2O).When 0.6742 g mixture of a mixture containing only MgCO3 and CaCO3 is treated with an excess of HCl, 0.3117 g of CO2 is produced. Calculate the percentage MgO and CaO in the sample.strength of IMFA and physical properties of covalent compounds