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Calculate the concentration in mol/L, M, of an aqueous sugаr solution with a concentration of 22.5%...
4a Calculate the molarity of an aqueous solution of sodium perchlorate with a solute mole fraction of 0.081 and a density, ρ = 1.078 g/mL. Report your answer to THREE significant figures. 4b Calculate the molarity of a 41.2% by mass aqueous solution of copper (I) sulfate with a density, ρ = 1.177 g/mL. Report your answer to THREE significant figures. 4c Calculate the mole fraction of the solute of a 4.211 m aqueous solution of cadmium (II) bromide with...
Calculate the molarity of a 2.53 m aqueous solution of manganese (II) chloride with a density, ρ = 1.033 g/mL. Report your answer to THREE significant figures.
Calculate the mole fraction of the solute of a 1.026 M aqueous solution of sodium phosphate with a density, ρ = 1.046 g/mL. Report your answer to THREE significant figures.
Calculate the mole fraction of the solute of a 3.184 M aqueous solution of potassium hydroxide with a density, ρ = 1.021 g/mL. Report your answer to THREE significant figures.
A student performed a titration in which aqueous NaOH (concentration = 0.1000 mol/L) was added via burette to a 25.00 mL aliquot of aqueous HCl in an Erlenmeyer flask. Endpoint was reached after the student added 24.01 mL of sodium hydroxide. What concentration of chloride ion is present in the flask once endpoint was reached? Report your answer to three significant figures. Calculate your answer in units of mol/L, but do not input units when submitting your response. Concentration of...
ch.13 answer each of these please What is the boiling point of an aqueous solution that has a vapor pressure of 22.5 torr at 25°C? (Puo 23.78 torn; Kb = 0,512 °C/m). Express your answer using four significant figures. VO AXO ? c A solution contains 10.55 g of unknown compound (non-electrolyte) dissolved in 50,0 mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -4,35 °C. The mass percent composition of...
4) An aqueous solution 95.0% (w/w) H2SO4 has a density of 1.83 g/mL. Calculate the molarity of this solution. 5) An enzyme with a molecular weight of 35,460 Daltons is commercially available as a 0.15g/100mL aqueous solution with a purity of 85%. Calculate the molarity of enzyme in this commercially available aqueous solution. 6) A solution of a protein with a molecular weight of 25,100 Daltons has a concentration of 1.85 x 10^-7 M. a) Convert this concentration to mM....
calculate the molarity of each solution. Parts A-C check images posted. Part A 0.152 mol of sucrose in 622 mL of solution Express your answer using three significant figures. Vα ΑΣφ ? м Request Answer Submit Part B 0.255 mol of KNO3 in 0.855 L of solution Express your answer using three significant figures. VOAEdD M Request Answer Submit NOV 21 M Submit Request Answer Part C 1.5 mol of KCl in 2.6 L of solution Express your answer using...
How many moles of KMnO4 are present in 125 mL of a 0.0850 M solution? 0.011 10.6 94.0 0.68 9.47 Question 4 2 pts How many milliliters of a 70.0 mL solution of 1.51 M BaCl2 must be used to make 12.0 mL of a solution that has a concentration of 0.300 M CI? DO NOT USE UNITS. DO NOT use scientific notation. Report your answer with 3 significant figures. Question 5 2 pts Mom made the kids 2 L...
An aqueous NaCl solution is made using 126 g ofNaCl diluted to a total solution volume of 1.00 L . Calculate the molarity of the solution. Express your answer using three significant figures. M = 2.16 M Part B Calculate the molality of the solution. (Assume a density of 1.08 g/mL for the solution.) Express your answer using two significant figures. m = 2.3 m Part C Calculate the mass percent of the solution. (Assume a density of 1.08 g/mL...