LaGCC Chem202 DnG Exam 1 11· The Name: molarity of CI in 110o mL of a solution c
ID: 1076098 • Letter: L
Question
LaGCC Chem202 DnG Exam 1 11· The Name: molarity of CI in 110o mL of a solution containing b. 0.0290 M c. 0.00319 M d. 0.528 M a. 0.264 M 3.22 g of CaClz is A 2 gof Cacl, is 12. What volume of a 0.550 M solution of potassium nycthis prob potassium hydroxide? (Ignor a. 26.0 ml hydroxide can be made with 14.3 g of significant figures for this problem) 463 mL c.255 mL d. 2158 mL e. 2.16 ml 13. What volume of 18.0 M sulfuric acid must be used to prepare 15.S L of 0.121 MH,SO.? (Ignore significant figures for this problem.) a. 104 mL b. 141 mL c. 1.88L d. 128.1 mL e. none of these 14. You have 3.00 L of a 3.48 M solution of NaCa) called solution A. You a 2.00Msolution AgNO3(ag) called solution B. You mix these solutions together, making solution C. Calculate the concentration (in M) of Na ions in solution C. a. 0 M b. 3.48M c. 5.22 M d. 1.10 M e. 2.09 M ou mix 100.0 mL of a 0.100 M NaOH solution and 150.0 mL of a 0.104 M HC1 solution. ine the concentration of Ht in the final mixture after the reaction is complete 15. Y c. 0.156 M d. 0.204 M e. 0.0224 M a. 0.0624 M b. 0.104 M hich 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. W 17. If a 74.6-g sample of ammonium nitrate is dissolved in enough water to make 315 mL of solution, the density of this solution is 0.92g/ml. what will be the molality? a. 0.932 m b. 2.96 m c. 0.294 m d. 3.22 m e. none of these The bonds between hydrogen and oxygen in a water molecule can be characterized as a. hydrogen bonds. b. London forces. 18. c. intermolecular forces. d. Covalent bond dispersion forces. e.Explanation / Answer
Answer 11 a) .264 M
Molarity = (Number of moles/volume in litres)
Number of moles= (weight in grams/molecular mass)
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