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?
Five grams of citric acid (MM=180.0 g/mol) are dissolved in 100.0 g water. the resulting solution reacts with 65.3 mL of strontium hydroxide solution. the balanced net ionic equation for the reaction is H3C5H5O7 (aq) +3OH^-(aq)-->C5H5O7^3- (aq) + 3H2O what is the molarity of the strontium hydroxide solution? the answer is .638 in my answer key but I don't know how to get it. thanks
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
1) Suppose .104 g of zinc bromide is dissolved in 100 mL of a 15.0 mM aqueous solution of potassium carbonate. Calculate the final molarity of bromide anion in the solution. you can assume the volume of the solution doesnt change when zinc bromide is dissolved in it. 2) An analytical chemist weights out .113 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution...
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...
Assuming complete dissociation of the electrolyte, if 11.96 grams of sodium chloride (NaCl, 58.44 g/mol) are dissolved in 243.0 grams of water, what is the boiling point of the solution?
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