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- A 15.0% by weight solution was prepared using 90.0g of KCl and the resulting density of the solution is 1.101g/mL. (MW KCl 74g/n). volume of solution(mL)? milliosmole of solute? %w/v? weight of solvent(g? N?Calculate the formality and normality of a commercial solution of H2SO4 whose purity is 97% and its density is 1.82 g/mL.MW of H2SO4= 98.0 g/molWhat is the Normality of a sulfuric acid solution containing 75% w/v of H2SO4 (98.0) and having a density of (1.520g/ml)?
- If you mixed a solution at ARCC that was 17.5 % mass/mass of the sugar sodium and then transferred 2.00 mL weighing 3.21 g into a graduated cylinder and diluted to 10.00 mL, what mass of sodium was transferred to your new solution?What weight of mercury bichloride should be taken as sample, assuming 100% purity, so that 0.5 g og HgS will be obtained in a gravimetric analysis? Gravimetric factor = 1.1669The standardized basic solution (0.0939 M) was then used in getting the total acidity of a food sample. 10 mL of the acidic sample consumed 10.3mL in the first trial then 10.0mL in the second trial to reach endpoint. Determine the normality of the acidic sample.
- 1. How many microliters of a 25 \mu M MgCl2.6H2O solution would be needed to provide 152.48 ng of MgCl2.6H2O for a chemical reaction? [ Mwt MgCl2.6H2O = 203.3 g/molePrepare 1500mL of 0.5N H2SO4 solution with specific gravity of 1.84g/mL and assay of 97%The mass of a beaker is 5.333g. After 5.00mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229g. From the data, what is the measured density of the hydrochloric acid solution?
- A stock solution of 75% v/v ethanol was diluted with distilled water to prepare 1L of 42% v/v ethanol. (Density of ethanol = 0.789 g/mL; MW of ethanol = 46 g/mol). Determine the initial volume (in mL) of 75% v/v ethanol used in the preparation. Final answer should NOT contain any unit. Type the VALUE only. Please observe 0 decimal places.If a pharmacist dissolves 1.2 g of a medicinal agent in 60 mL of a cough syrup having a specific gravity of 1.20. W hat is the specific gravity (to 3 decimal places) of the product if the addition of the medicinal agent increases the syrup’s volume by 0.2 mL?315mL of water was added to 2100 mL of 19M NaCl solution. What is the new concentration of the solution? (Use the given information: MW: Na = 23g / mol , CI=35g/mol)A. 2.85 MB. 2.48 MC. 18.60 MD. 19.0 M 500g of Al2S3 dissolved in H2O to make 15.0 L of solution. What is its normality?(MW: Al = 27g / mol S = 32g / mol H=1g/mol, O=16g/mol)A. 0.11 NB. 0.07 NC. 0.22 ND. 0.04 N The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80.0 M by evaporation. How much H₂O was removed? (MW: K= 39g/mol, Cl = 35g/mol, H = 1g / mol 0=16g/mol)A. 1.03 LB. 0.47 LC. 1968.75 mLD. 4.68.75 ml. Suppose that 15M of NaCl solution with a volume of 15L is heated and loses 2000ml of its water content. What would be the final concentration of your NaCl sample? (MW: Na = 23g / mol , Cl = 35q / mol, H=1g/mol,O=16g/mol)A. 3.75 MB. 0.0375 MC. 37.5 MD. 375.0 M