(Ignore at volume of 18.0 M sulfuric acid must be used to prepare 15.5 L of 0.12
ID: 1076087 • Letter: #
Question
(Ignore at volume of 18.0 M sulfuric acid must be used to prepare 15.5 L of 0.121 M H:SO.? significant figures for this problem.) a. 104 mL b. 141 mL c. 1.88L d. 128.1 mL e. none of these You have 3.00 L of a 3.48 M solution of NaCl(a) called solution A. You also have 2.00 L of a 2.00 M solution of AgNOs(ag) called solution B. You mix these solutions together, making 14. solution C Calculate the concentration (in M) of Na" ions in solution C. a. O M b. 3.48M c. 5.22 M d. 1.10M e. 2.09 M 15. You mix 100.0 mL of a 0.100 M NaOH solution and 150.0 mL of a 0.104 M HCI solution. Determine the concentration of H' in the final mixture after the reaction is complete. a. 0.0624 M b. 0.104 M c. 0.156M d. 0.204 M e. 0.0224 M Which of the following solutions contains the smallest number of ions? a. 539.8 mL of 1.0 M lithium nitrate b. 305.6 mL of 2.0 M potassium hydroxide c. 189.6 mL of 2.0 M iron(III) chloride d. 246.8 mL of 1.0 M sodium sulfate e. At least two of the above contain the smallest number of ions. 16.Explanation / Answer
13)
use dilution formula
M1*V1 = M2*V2
1---> is for stock solution
2---> is for diluted solution
Given:
M1 = 18.0 M
M2 = 0.121 M
V2 = 15.5 mL
use:
M1*V1 = M2*V2
V1 = (M2 * V2) / M1
V1 = (0.121*15.5)/18
V1 = 0.104 mL
Answer: a
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