Given 15.0 g of NaCl (MM of NaCl = 58.44 g/mol) is dissolved in 100.0 g of water:
a. Determine the mass percent of this solution.
b. Assume the density of the solution is 1.00 g/ml, calculate the molarity of the solution.
Given 15.0 g of NaCl (MM of NaCl = 58.44 g/mol) is dissolved in 100.0 g of water:
When 1.00g of NaCl (MM 58.44 g/mol) is dissolved in 50.00g of water, the temperature drops by 0.319degree C. This temperature change is only detectable by the most sensitive thermometers. If this process takes place in a very well insulated calorimeter, no calorimeter constant is needed. a. Calculate the enthalpy change per gram of NaCl. b. Calculate the enthalpy change per mole of NaCl.
What is molarity of a solution prepared by dissolving 4.65 g NaCl (FM = 58.44 g/mol) in enough water to make 275 mL of NaCl solution?
6.3145 g of NaCl was dissolved in enough water to make 100.0 mL of solution. If you pipet a 25.00 mL portion of this solution to an evaporating dish, and evaporate off the water to dryness, what mass of NaCl would you expect to collect?
A solution of NaCl (MW = 58.5 g/mol) in water (MW = 18.0 g/mol) has the molality of 3.01 molal and the density of 1.112 g/mL. Consider mass of solvent 1 Kg A) What is the mass percent of the solute? (B) What is the molarity of the solution? (C)What is the mole fraction of H2O?
Calculate the Kf of a solvent when 50.0 g of NaCl (58.44 g/mol) is dissolved in 250.g of solvent and lowers the freezing point by 6.36°C. (Assume that the solute completely dissociates.) O 0.68 °C/m O 1.36 °C/m O 1.86 °C/m O 0.93 °C/m
If the solubility of sodium chloride (NaCl) is 30.6 g/100 mL of H2O at a given temperature, how many grams of NaCl can be dissolved in 250.0 mL of H2O? If the solubility of glucose (C6H12O6) is 120.3 g/100 mL of H2O at a given temperature, how many grams of C6H12O6 can be dissolved in 75.0 mL of H2O? Only 0.203 mL of C6H6 will dissolve in 100.000 mL of H2O. Assuming that the volumes are additive, find the volume/volume...
A 115.3 g sodium chloride solution(density =1.05 g/mL) was prepared by dissolving 15.3 g of NaCl in 100.0 mL of water (density = 1.00 g/mL.) calculate the % of M/M, % M/V, and molarity of this in NaCl solution
How many grams of NaCl (1 molar mass = 58.44 g/mol) are required to make 350 mL of a 1.25 M NaCl solution
What is the molarity of Na when 100.0 mol of Na2SO4 is dissolved in 20.00 L of water. (Assume the volume of solution equals the volume of water.) What is the molarity of SO42- when 100.0 mol of Na2SO4 is dissolved in 20.00L of water. (Assume the volume of solution equals the volume of water.) How many moles of sulfuric acid are in 300.0 mL of 2.00 M H2SO4(aq) What volume (in mL) of 5.00 M HCl(aq) contains 10.0 mol...
Calculate the vapor pressure depression of a solution that 218 gram glucose (180.2 g/mol) is dissolved in 460 mL of water (18.01 g/mol). The temperature of the solution is 30°C. Assume the density of solution and water as 1.00 g/mL, the vapor pressure of pure water at 30°C 31.82 mm Hg.