2.50 is needed to prepare 750.0 mL of 8. What volume of HCI solution having pH...
What volume of 6.00 M NaOH solution is required to prepare 750.0 mL of a 0.250 M NaOH solution? Explain how you would prepare this solution.
A chemist must prepare 750.0 mL of sodium hydroxide solution with a pH of 13.70 at 25 °C. She will do this in three steps: • Fill a 750.0 mL volumetric flask about halfway with distilled water. • Weigh out a small amount of solid sodium hydroxide and add it to the flask. • Fill the flask to the mark with distilled water. Calculate the mass of sodium hydroxide that the chemist must weigh out in the second step. Round...
5.00 grams of NaOH was dissolved in 750.0 mL of water which made a solution. To prepare 200 mL of 0.1 M NaOH, what volume of this solution would be needed to add to water?
4. Calculate the volume of 1 M sodium hydroxide (NaOH) needed to prepare 10 ml of a 0.10 M sodium hydroxide solution. 5. Calculate the volume of 1 M hydrochloric acid (HCI) needed to prepare 10 mL of a 0.10 M hydrochloric acid solution. 6. Determine the volumes of 0.10 M CH3COOH and 0.10 M CH3COONa required to prepare 10 ml of the following pH buffers. (Note: the pka of CH3COOH =4.7) C. pH 3.7 b. pH 47 C. pH...
What mass of lithium phosphate is needed to prepare 287 mL of a solution having a lithium ion concentration of 0.337 M? Select one: a. 4.158 b. 11.2 8 C.3.248 d. 13.48 e. 3.738
15. Find the volume of a 2.50 M NaOH solution needed to dilute 200.0 ml of a.50 M NaOH solution (Show your work below to receive credit).
What mass of K2CO3 is needed to prepare 200. mL of a solution having a potassium ion concentration of 1.150 M? What is the formula for the mass? Please, write down the formula for me
a. Calculate the pH of 200 mL of a 1.50 M solution of HCl? b. What mass of LiOH must be added to 750.0 mL of 0.0550 M HCl to produce a solution having a pOH of 11.500? c. A chemist had 2.000 L of a 0.00120 M KOH solution. What mass of HCl(g) would have to be added to the KOH solution to produce a solution having a pH of 10.875?
Problem: Prepare 100. mL of a 5.23 x 104 M HCI (aq) solution. You have a 0.0155 M HCI (aq) stock solution. Determine the volume of stock solution needed to prepare the solution you need.
What mass of K2CO3 is needed to prepare 200. mL of a solution having a concentration of 0.075 M? A) 4.15 g B) 10.4 g C) 13.8 g D) 2.07 g E) 1.49 g