pruouce rea Ine molar concentration of H, SO, is: (Unbalanced equations 00 a) b) 0.218 c) 0.289 d) 0.226 e) 0.266 B. Which of the following pairs of aqueous solutions would not produce a reection when mixed ? 2) AgNO, and HCI e) Ba(OH); and HNO, e) NaNOyend CuCl, b) Na,SO4 and Ba(OR); d) CEC) and Na,PO,
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- It is sometimes asserted that carbonates are soluble instrong acids because a gas is formed that escapes (CO2).Suppose that CO2 were extremely soluble in water (as, forexample, ammonia is) and therefore it did not leave thesite of the reaction, but that otherwise, its chemistry wasunchanged. Would calcium carbonate be soluble in strongacids? Explain.The freezing point of a 0.100 M acetic acid (CH3COOH) solution is determined to be-0.1878 C. Estimate the percent dissociation of acetic acid in this solution. Is it a strong orweak electrolyte? Note that acetic acid produces acetate (CH3COO-) and hydrogen (H+) ionswhen it is dissolved in water.In which situation(s) is it necessary to use a volumetric flask for maximum accuracy? to prepare a 0.150M solution of sodium chloride to measure ~25mL of water to prepare 0.1M HCI from 36-38% HCI a and c all of the above (Please type answer no write by hend)
- A 30.0 mL sample of this aqueous HX solution freezes at – 0.186 oC. A. What is the molal concentration of HX (mol HX/kg HX) in this solution, given kf = 1.86 oC kg/mol for water. B. What is the molar mass of HX? C. What is the molar concentration of HX (mol HX/L solution) in this solution? D. Estimate the value of Ka for HX. E. What is the pH of your solution, based on the information you have gathered thus far?It is required to know the concentration of an aqueous solution of H2SO4 that appeared in the laboratoryChemistry III and it's unlabeled. To this end, a student of analytical chemistry carried out the followingProcedure: He took 5.00 mL of a fresh and standardized solution of 0.525M NaOH and brought them to a250.0 mL balloon to be completed with distilled water. Subsequently, he poured 15.00 mL of the solutionH2SO4 of unknown concentration in an Erlenmeyer flask and added 2 drops of phenolphthalein.Using a burette filled with the last NaOH solution, he noticed that when adding 39.40 mL of the hydroxidethe Erlenmeyer solution reached a faint but permanent pink. With the above dataDetermine the concentration and pH of the H2SO4 solution.(a) What is the action of red litmus on(i) Dry ammonia gas(ii) Solution of ammonia gas is water? (b) State the observations you would make on adding ammonium hydroxide to aqueoussolution of(i) furious sulphate(ii) Aluminium chloride?
- In a gravimetric determination of a soluble sulfate the data gathered is presented (see attachment). Calculate the amount of BaCl2 needed fortitration.Solid silver nitrite is slowly added to 125 mL of a sodium cyanide solution until the concentration of silver ion is 0.0523 M. The maximum amount of cyanide remaining in solution is M. Please post the answer asap please make sure the answer doesnot contain error becasue last answer provided had error so i need to resubmit the question. Thanks!) A truck driver carrying a load of lead nitrate (Pb(NO3)2) lost control of his semi- truck after hitting a patch of ice and crashed the truck into Blue Lake, which was right next to the highway. Despite the best efforts of the emergency workers, several of the crates containing lead nitrate were damaged, and the highly soluble compound dissolved immediately. Assuming the lake is initially at circumneutral pH (7), and that the spill resulted the in a total lead concentration of 10-3 M within the lake. Based on the following information, will PbO(s) precipitate out of Blue Lake. Assume all lead nitrate dissociates into Pb+2 and NO3-, no other sources of lead exist in the lake and that no other reactions besides the equations shown below occur. PbO(s) + 2H+ ⇌ PbO(s) + H+ ⇌ PbO(s) + H2O ⇌ PbO(s) + 2H2O ⇌ Pb2+ + H2O PbOH+ + H2O Pb(OH)2o Pb(OH)3- + H+ logKs0/ksp =14 logK1=3.4 logK2=-0.5 logK3=-12
- 136 mL of 0.00015 M Pb(NO3)2 and 234 mL of 0.00028 M Na2SO4 (volumes are additive). Will a percipitate form? Hint: each solution dilutes the other upon mixing.The concentration of an aqueous solution of CaSO4 (Ksp = 7.1 × 10–5) is 8.43 × 10–3 M. Qsp = ___ and this solution is ___.A solution is prepared by dissolving 2g of KCI in 100g of H2O. In this solution, H2O is the?