matters and slutions and stuff test 2

the number of units of mass of solute per million units of total solution

the molar concentration of ions in a solution when a high solubility ionic compound dissociates or a strong acid ionizes is proportional to the mole ratio of the balanced chemical equation.

a solution of an accurately known concentration.

• step.1 calculate the mass of the solid
• step.2 measure the required mass by using an electronic balance
• step.3 place solute in a beaker and dissolve in half of the final solution volume of deionized water.
• step.4 use funnel and transfer solution to volumetric flask calibrated to measure the desired volume of solution
• step.5 rinse beaker and stirring rod 3 times with deionized water and transfer rinse water to flask to ensure all solute has been transferred. rinse funnel
• step.6 add deionized water to the calibration line adding dropwise when the solution is close to the line.
• step. 7 invert the flask multiple times to mix.

process of adding water to decrease concentration of solution.

• 1.use volumetric pipette to measure the required volume of stock solution.
• 2. transfer the volume of stock solution into a volumetric flask calibrated to measure the final volume of the dilluted solution.
• 3. add deionized water to the calibration line, adding dropwise when the solution is close to the line.
• 4. invert the flask several times to mix.

concentration is inversely proportional to volume.