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Complete and balance in standard form NaOH+H2SO4
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- please help me The aluminum in a 1.200g sample of impure ammonium aluminum sulfate was precipitatedwith aqueous ammonia as the hydrous Al2O3 · XH2O. The precipitate was filtered and ignitedat 100°C to give anhydrous Al2O3, which weighed 0.2001 g. Express the result of this analysisin terms of % Al.A 0.2088 g sample of primary-standard-grade sodium carbonate, Na₂CO₃ (105.99 g/mol) was dissolved in water and diluted to 100.00 mL in a volumetric flask. A 30.00-mL portion of this solution was used to standardize a hydrochloric acid (HCl) solution based on the following reaction: CO₃²⁻ + 2H⁺ → H₂O + CO₂. If 36.09 mL of the HCl solution was used to reach the end point, what is the molarity of the HCl?Barium chloride + sodium carbonate
- Sodium sulfate + barium chlorideBalance the following equations. (Use the smallest whole numbers possible. Enter 1 where appropriate - do not leave any answer box blank.) (a) CAH100() + ]O2(@) → CO,(g) + H20() (b) CH4(g) + |a,(g) → CCI,(1) + HCI(g) (c) Fe(OH)2(s) + H2S(g) - Fe S3(s) + H20(g)When a solution of sodium hydroxide is added to a solution of ammonium carbonate, H2O is formed and ammonia gas, NH3, is released when the solution is heated. Write a net ionic equation for this reaction. Both NaOH and (NH4)2CO3 exist as dissociated ions in an aqueous solution.
- c) OMe CN hvHard water contains magnesium and calcium ions 1Mg2+, Ca2+2, which can precipitate out in hot water pipes and water heaters as carbonates. Write the net ionic equation for this reaction.A 0.709 g sample of H2C2O4·2H2O is dissolved in water and titrated to a phenolphthalein endpoint with 27.98 mL of a sodium hydroxide solution. What is the molarity of the NaOH?
- A 0.42 gram sample of acetylsalicylic acid (C₉H₈O₄, aspirin) is crushed and dissolved in water. The sample is titrated with 0.160 M sodium hydroxide. The titration required an average volume of 12.50 ml of sodium hydroxide to reach the endpoint. The purity of the sample2.) Five standardized dilutions of aqueous lead(II) chromate solution were prepared by adding a volume of 0.0010 M PbCrOa(ag) from a buret and then diluting the solution with deionized water to a total volume of 100.0 mL. Use the provided information to determine [CrO,2] in each. Hint: enter the decimal before the scientific notation. Mixture Initial Buret Reading (mL) Final Buret Reading (mL) [CrO,2] (M) 4 7.10 16.83 ? x 105Potassium hydrogen phthalate, C8H5KO4 (molar mass 204.22 g mol-1) is a widely used standard for calibrating pH meters and carbon analyzers for performing chemical analyzes. I have a Dohrmann DC-80 carbon analyzer in my lab. The user manual calls for a standard of 400 mg / L (as carbon), in an aqueous solution. What is the mass percentage of carbon in this molecule?