how would you solve the mass of sucrose, C12H22O11, that is needed to make 550ml of a 0.25M solution?
How many mols do you want? That's mols = M x L = ?
Then mol = grams/molar mass. You know molar mass and mols, solve for grams.
To solve for the mass of sucrose (C12H22O11) needed to make a 0.25M solution in 550 mL of solvent, you need to follow the steps:
Step 1: Determine the molar mass of sucrose.
The molar mass of sucrose (C12H22O11) can be found by adding up the atomic masses of the individual elements in one molecule of sucrose. Looking up the atomic masses of carbon, hydrogen, and oxygen, the molar mass of sucrose is:
12 carbon atoms × atomic mass of carbon + 22 hydrogen atoms × atomic mass of hydrogen + 11 oxygen atoms × atomic mass of oxygen
Step 2: Calculate the number of moles of sucrose needed.
To find the number of moles of sucrose needed to prepare the solution, use the following formula:
moles = molarity × volume in liters
Convert the volume of the solution (550 mL) to liters by dividing by 1000.
Step 3: Calculate the mass of sucrose.
To calculate the mass of sucrose needed, multiply the number of moles of sucrose (from Step 2) with the molar mass of sucrose (from Step 1).
mass = moles × molar mass
By following these steps, you will be able to find the mass of sucrose needed to make a 0.25M solution in 550 mL of solvent.