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- a concentrated H2SO4 has the following composition specific gravity 1.84 and purity of H2SO4 is 97 percent by weight. express in mole/LCalculate molar concentration of a solution that is 50.0% NaOHby weight and has a specific gravity of 1.52 (FW NaOH= 40.00g/mol)it is desired to prepare calcium sulfate soultion by dissolving 200 g calcium sulfate in enough water to sa volume of 850 ml. The solution has a specific gravity of 1.26. calculate ppm solute and nomality
- Describe the preparation of the following solutions. Answer only the first three numbers. 00 L of 0.0500 M KMnO4 from the solid reagent. 400 mL of 0.0250 M I- starting from MgI2 solid 00 L of 0.250 M HClO4 from an 8.00 M solution of the reagent. 200 mL of 1.00% (w/v) aqueous CuSO4 from a 0.365 M CuSO4 500 mL of 1.0 M HCl solution from a concentratedA solution was prepared by dissolving 6.34 g KCl.MgCl2.6H2O in sufficient water to give 2.00 L. Calculate: %w/v KCl.MgCl2.6H2O1. 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.
- Given the following mixture of two compounds 30.00 g of X (liquid) (MW =58.00 g/mol)(density 1.088 g/mL) and 880.00 g of Y (50.00 g/mol))(density 0.808 g/mL), calculate the mass percent of X. Given the following mixture of two compounds 35.00 mL of X (MW =80.00 g/mol)(density 0.945 g/mL) and 735.00 mL of Y (80.00 g/mol))(density 0.810 g/mL). The vapor pressure of pure Y is 47.00 torr. Calculate the vapor pressure of the solution.A solid sample contains unknown amounts of potassium and magnesium chloride and moisture. 1.193 g of the sample is dissolved in water and the solution is diluted to 250.00 mL. 25.0 mL of the sample is allowed to pass through an H + -saturated cation exchanger, the eluate consuming 22.03 mL of a 0.100 M NaOH solution. The moisture content of the sample was determined to be 5.22%. Calculate the % by weight of potassium and magnesium chloride in the sample.If 10.0mL of H2SO4 (specific gravity=1.50 containing 48.7% of combined SO3 by weight) is diluted to 400mL, what is the normality of the solution as an acid? 1.52 x 10-4 N 3.04 x 10-4 N 0.228 N 0.456 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/molAscorbic acid has a chemical formula of C6H8O6 and is water soluble. A solution containing 80.5 g of ascorbic acid is dissolved in 210g of water. The resulting solution has a density of 1.22g/mL at 55°C. Calculate the mass percentage of the ascorbic acid in the solution.1. Describe the preparation of (a) 500 mL of 0.0750 M AgNO3from the solid reagent .(b) 1.00 L of 0.285 M HCl, starting with a 6.00 M solution of the reagent. (c) 400 mL of a solution that is 0.0810 M in K+, starting with solid K4Fe(CN)6. (d) 600 mL of 3.00% (w/v) aqueous BaCl2from a 0.400 M BaCl2solution. (e) 2.00 L of 0.120 M HClO4from the commercial reagent [71.0% HClO4(w/w), specificgravity1.67]. (f) 9.00 L of a solution that is 60.0 ppm in Na+, starting with solid Na2SO4 EXPLAIN EACH ITEM