Given an aqueous solution of H2SO4 with 4.5 molal concentration, with the solute having 1.83 g/cm3 density. Calculate the following: Molarity Percent by Mass Mole Fraction of Solute/Solvent
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- 5-7: A 10.34 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL, density of water = 1.0 g/mL, and the MW of nitric acid = 63 g/mol)5. How many grams of HNO3 were used to prepare the solution? 6. What is the Molarity of the solution? 7. What is the concentration (%v/v) of the solution? 8-10: An aqueous solution of HNO3 was prepared having a molal concentration of 6.29. (Atomic weights: H=1 amu, N=14 amu, O=16 amu, density of H2O = 1g/mL, density of HNO3 = 1.51 g/ml)8. How many grams of HNO3 was used to prepare the said concentration? 9. What is the molarity of the aqueous HNO3 solution? 10. The % v/v of the prepared HNO3 solution is __________.the answer is 133.33kPa N2, 20kPaAr, and 9.7333kPa CH4, i need solution steps and in the significant figure, thanks!7.Clearly describe how you would prepare 45mL of a 0.050M stock solution of potassium chloride (Formula Weight: 74.55g/mole). Using this stock solution, describe how you would prepare 100mL of the following dilutions: 1.5mM and 5000 micromoles (uM)
- An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG= 1.114; MW = 62.07 g/mole) and water at 20oC. The density of the mixture is 1.070 g/mL. Express the concentration of ethylene glycol as:a) Volume percentb) Mass percentc) Molarityd) Molalitye) Mole fractionA dissolution is prepared dissolving 396 g of sacarose (C12H22O11) in 624 g of water. What is the vapor presurre at 30ºC? The vapor presurre of water at 30ºC is 31.8 torr and sacarose is a non-volatile solute.An aqueous waste stream that has a maximum concentrationof 0.50 M H₂SO₄ (d=1.030 g/mL at 25C) will be neutralized by controlled addition of 40% caustic soda (NaOH; d=1.430 g/L) before it goes to the process sewer and then to the chemical plant waste treatment facility. However, a safety re-view finds that the waste stream could meet a small stream of animmiscible organic compound, which could form a flammable vapor in air at 40.°C. The maximum temperature of the causticsoda and the waste stream is 31°C. Could the temperature in-crease due to the heat of neutralization cause the vapor to ex-plode? Assume the specific heat capacity of each solution is 4.184 J/gK.
- A solution is prepared by dissolving 40.00 g of MgCl2 (f.w. = 95.211 g mol–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol–1) to result in exactly 2 L of solution at 25 °C. Assume the density of the solution is that of pure water (dsolution = 1.000 g mL–1). The ebullioscopic constant (Kb) for water is 0.513 °C m–1. The cryoscopic constant (Kf) for water is 1.86 °C m–1. The vapor pressure of pure water is 0.0313 atm. Determine the freezing point of the solution.A solution is prepared by dissolving 40.00 g of MgCl2 (f.w. = 95.211 g mol–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol–1) to result in exactly 2 L of solution at 25 °C. Assume the density of the solution is that of pure water (dsolution = 1.000 g mL–1). The ebullioscopic constant (Kb) for water is 0.513 °C m–1. The cryoscopic constant (Kf) for water is 1.86 °C m–1. The vapor pressure of pure water is 0.0313 atm. Determine the osmotic pressure in atm.What is the molar mass of a solution if 2.00g of the solute is dissolved onto 9.00g of solvent? The Kf is 4.5° C and the temp drops from 70.00° C ( pure solvent) to 65 00° C (solution). You Must show all work and include unit and you Must get answer to correct sig figs.
- The picture is 1.)A 1B.) If DHsolution for dissolving DMSO in methanol is negative, what does this say about the energy released in mixing methanol and DMSO molecules (DHmixing) as compared to the energy required in separating solute molecules from each other (DHsolute) and separating solvent molecules from each other (DHsolvent)? What can you conclude from this about the strength of DMSO-methanol interactions? Which “wins” in this case? Enthalpy? Entropy? Both? Explain1. What is the molarity of glucose (mol wt =180) in a solution containing 6.70g of glucose and 150 g of water? The final solution has a specific gravity of 1.015. Round off to 4 decimal places. 2. What is the osmolality of 12.5% by weight solution of AlCl (MW=133 g/mole)? 3. What is the normality (N) by w/v solution of CaCl containing 5 g of CaCl and 105g of water (CaCl MW=111 g/mole)? The specific gravity of the final solution is 1.35.How many grams of X-Gal (MW = 408.629 g/mol) are required to prepare 25mL of a 0.2% (w/v) solution in dimethylformamide? Please show all work and calculations. Please type answer note write by hend.