WHAT CONCENTRATION OF SOLUTION DO YOU GET IF YOU DISSOLVE 45G OF GLUCOSE (MOLECULAR WEIGHT =180) IN 500ML OF WATER?

moles glucose = 45/molar mass glucose

moles/0.5 kg = ?? molality.

To calculate the concentration of a solution, you need to determine the amount of solute (in this case, glucose) dissolved in a given volume of solvent (in this case, water). The concentration is usually expressed in terms of moles per liter (M) or grams per liter (g/L).

1. First, calculate the number of moles of glucose using the given mass and the molecular weight:
Number of moles = Mass (in grams) / Molecular weight
In this case, the mass of glucose is 45 grams and the molecular weight is 180 grams/mole.
Number of moles = 45 g / 180 g/mol = 0.25 moles

2. Convert the volume of the solvent to liters:
500 mL = 500 mL / 1000 mL/L = 0.5 L

3. Finally, calculate the concentration by dividing the number of moles by the volume in liters:
Concentration = Number of moles / Volume (in liters)
Concentration = 0.25 moles / 0.5 L = 0.5 M

Therefore, if you dissolve 45g of glucose in 500 mL of water, you would get a concentration of 0.5 M.