4.(10 points) What molarity of HCl is needed so that 50mL diluted to 1.5L will yield 0.20M?
5.(10 points) You have to make 100mL of 0.05M HCl from a 10M HCl stock solution, but the only measuring devices available are 100mL graduated cylinders and 10mL pipets. How could you accurately make the dilute HCl solution (see pgs. 8-10 in your Laboratory Manual)?
6. (25 points) You have a 5.0M stock solution of NaCl (Formula Weight: 58.4g/mole), a 50mM stock solution of glucose (Formula Weight; 180.2g/mole), a bottle of alanine (Formula Weight: 89.09g/mole ), and a bottle of Tris base (Formula Weight: 121.1g/mole). Describe how you would prepare 350mL of a single solution containing 50mM Tris, 5mM glucose, 500mM NaCl, and 20% (w/v) alanine.
i am soo confused.
5.(10 points) You have to make 100mL of 0.05M HCl from a 10M HCl stock solution, but the only measuring devices available are 100mL graduated cylinders and 10mL pipets. How could you accurately make the dilute HCl solution (see pgs. 8-10 in your Laboratory Manual)?
6. (25 points) You have a 5.0M stock solution of NaCl (Formula Weight: 58.4g/mole), a 50mM stock solution of glucose (Formula Weight; 180.2g/mole), a bottle of alanine (Formula Weight: 89.09g/mole ), and a bottle of Tris base (Formula Weight: 121.1g/mole). Describe how you would prepare 350mL of a single solution containing 50mM Tris, 5mM glucose, 500mM NaCl, and 20% (w/v) alanine.
i am soo confused.