Problem is: you have 95.0 mL of 37.0% (w/w) HCl solution. The density of 37.0% (w/w) HCl solution is 1.18 g/mL. Useful information: k(f) of water is (1.86 kg celsius /mol). The unknown compound is a non-electrolyte.
Determine the solution's:
a. molarity,
b. molality
c. mole fraction of HCl
d. (w/v) percent

Problem is: you have 95.0 mL of 37.0% (w/w) HCl solution. The density of 37.0% (w/w)...
An aqueous NaCl solution contains 1.343x10* ppm NaCl. The density of water is 1.000g/ml. The density of the solution is 1.08 g/mL. The molar mass of NaCl is 58.44g/mol. Keep the correct number of significant figures. a) What is the molality of NaCl? b) What is the molarity of NaCl? c) What is the (mass/volume)% is unit of (kg/L)%? d) What is mass percent? e) What is mole fraction of NaCl?
115 grams of KCl is dissolved in 750 ml of water (assume density = 1.005 g/ml). What are the molality, molarity, mole fraction, mole percent, % mass, ppm by mass? What would be the freezing point and boiling point of that solution assuming the Kf of water is 1.86 oC/m and Kb is 0.512 oC/m (assume that KCl fully dissociates with no pairing of ions)?
Calculate the molarity and molality of an HCl solution that contains 29.11% (w/w), the density of the solution is 1.193 g/mL
A solution of ethylene glycol in water at 20 degrees celsius has a mass percent of 9.78% of ethylene glycol with a density of 1.0108 g/mL. The freezing point depression constant for water (solvent for all solutions) is Kf=-1.86 percent celsius kg/mol and the boiling point elevation constant is Kb=0.512 degrees celsius kg/mol. The density of neat water at 20.0 degrees celsius is 0.9982 g/mL. Answer the following: 1. What is the molarity of the solution? 2. What is the...
1. An aqueous solution is 2.65M in tartaric acid (H,C,H,0). The solution's density is 1.016 g/ml. Calculate the solution's: (a) molality (b) mole fraction of tartaric acid (c) percent by mass
A solution was prepared by dissolving 37.0 g of KCl in 225 g of water. Calculate the mole fraction of the ionic species KCl in the solution. Calculate the molarity of KCl in the solution if the total volume of the solution is 239 mL. Calculate the molality of KCl in the solution.
How do you find the mass percent, mole fraction, and the
molality for these two problems?
P1. (Sec. 11.1) A solution is prepared by dissolving 113 grams of acetone (C3H6O) in 662 grams of water. With this information, calculate the solution's mass percent % of the solute, mole fraction of the solute, and the solutions molality. a) b) c) d) e) Mass Percent: 88.7%; Mole Fraction (Solute): 0.9068; & Molality: 5.70 mol/kg Mass Percent: 11.3%; Mole Fraction (Solute): 0.0932; &...
An aqueous antifreeze solution is 31.0 % ethylene glycol (C2 H4 O2) by mass. The density of the solution is 1.05 g/cm3. Calculate the molality, molarity and mole fraction of the ethylene glycol Molality mol/kg Molarity mol/L Mole fraction
Calculate the mass of HCl in 1.5 L concentrated solution that contains 37.11% (w/w) HCl, the density of the solution is 1.178 g/mL. Calculate the molarity (M) of HCl solution which has a molality(m) of 2.37 m and density of 1.185 g/mL. Calculate K for the following reaction at 25°C, N2 (g) + 3 H2(g) = 2 NH3(g) Kp = 5.8 x 105
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