a) Sodium carbonate, Na₂CO3 (105.9888 g/mol) has been widely applied in many chemicalprocesses such as manufacture of detergents, soaps, paper. Simon prepared a 10 % w/wsodium hydroxide solution with density of 1.1029 g/mL using a 1 L volumetric flask.Deduce the molarity of sodium hydroxide solution that Simon has prepared.b) Syngas is used in the manufacture of ammonia as a source of hydrogen. It is a fuel gasmixture consisting primarily of hydrogen, carbon monoxide and some carbon dioxide. Ina chemical process, the ratio of hydrogen is increased by the following reaction.CO (g) + H₂O+ H₂ (g)→ CO₂(g)(g)Jennifer started the reaction with 2 mol each of CO and H₂O using a 50 L vessel. Thereaction was conducted at 1000 °C. Determine the concentration of all chemical species atequilibrium. Given Ke for this reaction is 0.58.

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a) Sodium carbonate, Na2CO3 (105.9888 g/mol) has been widely applied in many chemical processes such as manufacture of detergents, soaps, paper. Simon prepared a 10 % w/w sodium hydroxide solution with density of 1.1029 g/mL using a 1 L volumetric flask. Deduce the molarity of sodium hydroxide solution that Simon has prepared.

a) Sodium carbonate, Na2CO3 (105.9888 g/mol) has been widely applied in many chemical processes such as manufacture of detergents, soaps, paper. Simon prepared a 10 % w/w sodium hydroxide solution with density of 1.1029 g/mL using a 1 L volumetric flask. Deduce the molarity of sodium hydroxide solution that Simon has prepared.

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter13: Solutions And Their Behavior

Section: Chapter Questions

Problem 57GQ: Dimethylglyoxime [DMG, (CH3CNOH)2] is used as a reagent to precipitate nickel ion. Assume that 53.0...

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Dimethylglyoxime [DMG, (CH3CNOH)2] is used as a reagent to precipitate nickel ion. Assume that 53.0 g of DMC has been dissolved in 525 g of ethanol (C2H5OH). s The red, insoluble compound formed between nickel(II)ion and dimethylglyoxime (DMG) is precipitated when DMG is added to a bask solution of Ni2+ (aq). (a) What is the mole fraction of DMG? (b) What is the molality of the solution? (c) What is the vapor pressure of the ethanol over the solution at ethanols normal boiling point of 78.4 C? (d) What is the boiling point of the solution? (DMG does not produce ions in solution.) (Kbp for ethanol = +1.22 C/m)
(a) If you dissolve 10.0 g (about one heaping teaspoonful) of sugar (sucrose, C12H22O11) in a cup of water (250. g), what are the mole fraction, molality, and weight percent of sugar? (b) Seawater has a sodium ion concentration of 1.08 104 ppm. If the sodium is present in the form of dissolved sodium chloride, what mass of NaCl is in each liter of seawater? Seawater is denser than pure water because of dissolved salts. Its density is 1.05 g/mL
Predict the relative solubility of each compound in the two solvents, on the basis of intermolecular attractions. (a) Is NaCl more soluble in water or in carbon tetrachloride? (b) Is I2 more soluble in water or in toluene (C6H5CH3)? (c) Is ethanol (C2H5OH) more soluble in hexane or in water? (d) Is ethylene glycol (HOCH2CH2OH) more soluble in ethanol or in benzene (C6H6)?
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4. What volume of dilute nitric acid of density 1.11g/mL and 19% nitric acid by weight contains in 10g nitric acid. 5. Given 200cm3 of pure water at 40C, what volume of a solution of hydrochloric acid whose density is 1.175g/cm3 and containing 344.4% HCl by weight, could be prepared?6. How many grams of Na2CO3 are needed to prepare 500cm3 of a solution containing 10.0mg of CO32- per cm3?7. What volume of 0.300M H2SO4 is required to exactly neutralize 200mL of 0.500M NaOH?2NaOH + H2SO4  Na2SO4 + 2H2O
A. FERMENTATION OF CANE SUGAR1. In a 500 mL Florence flask, place 50 gms of brown cane sugar and 1 gram ofdisodium phosphate.2. Dissolve 1 teaspoon of yeast in 15 mL of water. Add this to the sugar in the flasktogether with 150 mL water. Stir until the sugar is dissolved.3. Close the flask with a rubber stopper provided with a delivery tube so that theevolved gas will bubble through a solution of clear limewater.4. HAVE THE SET – UP CHECKED BY YOUR INSTRUCTOR.5. Keep the set – up inside the locker for 5 – 6 days at room temperature.Fermentation Set – up: ________________________________Write the equation for the hydrolysis of cane sugar _____________________________Write the equation for the fermentation of the simple sugars to alcohol __________6. At the end of the fermentation period, what is formed in the flask containinglimewater? _________________________________________________________________Write the equation for its formation ____________________________________________ C.…
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