11. Combustion analysis of 3.88 g of a compound containing C, H, and S reveals the following data: 9.377 g CO2 and 1.59 g H2O. What is the empirical formula of the compound?
12. You create a solution from 5.00 g NaCl dissolved in 97.0 g H2O. What is the m/m% concentration? Answer: 4.90%
13. What volume of 6.0 M NaOH needs to be diluted to prepare 5.00 L of 0.10 M NaOH? Answer: 0.083 L
14. A typical dose of iron (II) sulfate (FeSO4) used in the treatment of iron-deficiency anemia is 0.35 g. How many ml of a 0.10 M FeSO4 solution would be needed to supply this dose? Answer: 23 mL
15. Normal saline solution that is used to dissolve drugs for intravenous use is 0.92%(m/v) NaCl in water. How many grams of NaCl are required to prepare 35.0 ml of normal saline solution? Answer: 0.32 g
16. Consider the titration of acetic acid with sodium hydroxide. A 10.0 mL sample of acetic acid requires 37.55 mL of 0.233 M NaOH to reach the equivalence point. What is the concentration of the acetic acid? Answer: 0.875 M
17. Calculate the pH of a vinegar solution with hydronium ion concentration 0.001 M. Answer: 3.0
Was given a couple questions for a study guide for an exam. These are the only ones I didn’t understand on how to get the answers. Not worth any points.
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