Molarity and Percent Solution Lab Essay

ObjectiveThe objective of this lab was to determine the molarity and portion bulgecome of a solution with an secret concentration.BackgroundMolarity is the number of moles of a solute per liter of a solution. Percent solution is the percentage of a solute in a specific mass or volume of a upshot. A solute is a solid that gets dissolved in a solvent or a liquid that is a smaller amount than the solvent. A solvent is a liquid that dissolves the solute and it always is a larger amount. Solvation is when solute particles are surrounded by solvent molecules. A lab technique that was used during the lab was to boil the solution in order to separate the solute from the solvent.Materials List 10mL graduated cylinder Solution with unknown concentration Hot nursing home Pipette Hot grip Scale 100mL beakerProcedure1. Obtain the solution with the unknown concentration from Mrs. Magdaleno. 2. Measure the volume of the solution by pouring it in the 10mL graduated cylinder. Use the pipette t o take out solution in the graduated cylinder until the volume was at 6mL. express it in the data table. 3. Measure the empty 100mL beaker victimisation the scale. Record it in the data table. 4. Pour the solution in the 100mL beaker.5. Find the mass of the beaker and solution using the scale. Make sure to set forth original beaker mass from the mass of the beaker and solution. 6. Boil the solution to separate the solute from the solvent by using the hot plate get along to nine. 7. Once all the water has evaporated use the hot grips to remove the beaker from the hot plate and let cool. Find the mass of the beaker and solute using the scale. Make sure to subtract beaker mass from the beaker and solute mass. 8. Use the data from the data table to solve for molarity and percent solution.Observations The water started to boil and evaporate when it was on the hot plate. It smelt equivalent the salt was burning. Some salt spilled out on the lab station when the water completely evapo rated.Data TableVolume of solution (L) 6mL=0.006L circumstances of beaker (g) 68.95g Mass of solution and beaker(g) 75.06g Mass of solution(g) 6.12g Mass of solute and beaker(g) 69.41g Mass of solute(g) 0.46g ResultsA MolarityB Percent SolutionConclusionThe molarity that was calculated for the unknown solution was 1.31M. The percent solution that was calculated for the unknown solution was 7.52%. A procedural that would have led to a lower concentration value was when some salt spilled out onto the lab station after all of the water had evaporated from the beaker. Another error that would result in a higher concentration would be if the beaker was not wry when the mass was measured with the scale. Something that could be done differently to lead to a more accurate concentration would be to take the beaker off the hot plate sooner and not let the salt sit and burn or come out of the beaker.