fidypomi said:Here is the problem..
Calculate the molarity of a 0.342M sugar (C12H22O11) solution that has a density of 1.12g/mL.
The answer is 0.341m but I don't know the steps..
Please help me with this problem :(
To calculate the molarity of a sugar solution, you need to know the volume of the solution in liters and the number of moles of sugar dissolved in the solution. The formula for molarity is M = moles of solute / liters of solution. In this case, you would divide the number of moles of sugar by the volume of the solution in liters to get the molarity.
The concentration of a 0.342M sugar solution is 0.342 moles of sugar per liter of solution. This means that for every liter of the solution, there are 0.342 moles of sugar dissolved in it.
To convert molarity to grams per liter, you need to know the molar mass of the solute. You can then multiply the molarity by the molar mass to get the grams of solute per liter of solution. In this case, to convert 0.342M sugar solution to grams per liter, you would multiply 0.342 by the molar mass of sugar (180.16 g/mol).
Molarity is the measure of the concentration of a solution in moles of solute per liter of solution, while molality is the measure of the concentration of a solution in moles of solute per kilogram of solvent. Molarity takes into account the volume of the solution, while molality takes into account the mass of the solvent.
The molarity of a solution can change with temperature because the volume of the solution can change as the temperature changes. As the temperature increases, the volume of the solution also increases, which leads to a decrease in molarity. Similarly, as the temperature decreases, the volume of the solution decreases, resulting in an increase in molarity. This is why it is important to specify the temperature at which the molarity was measured.