CHEM 1040 Lecture Notes - Lecture 8: Barium Chloride, Chemical Equation, Oxidation State
Ch. 4 Study Questions
• Which will be the best conductor of electrical current?
o Methyl alcohol CH3OH
o Potassium Chloride KCl
o Glucose C6H12O6
o Bromine Br2
o Ethylene Glycol C2H6O2
• Total moles of ions released when 1.6 mol of (NH4)3 PO4 is dissolved in water?
o 0.40 mol
o 1.6 mol
o 3.2 mol
o 4.8 mol
o 6.4 mol
o 11.2 mol
• To prepare 250 mL of NaCl solution (.150 M NaCl), we need ??? g NaCl (58.44 g/mol)
o 37.5 g
o 29.0 g
o 14.6 g
o 7.97 g
o 2.19 g
• Want 755 mL of 0.0125 M CH3 OH solution. How many mL liquid CH3 OH needed?
(d=0.7918 g/ml, M=32.04 g/mol)
o 0.239 mL
o 0.302 mL
o 0.317 mL
o 0.382 mL
o 0.506 mL
• How many mL of 1.58 M HCl are required to react with 23.2 g of NaHCO3 (84.02 g/mol)
o 572 mL
o 175 mL
o 276 mL
o 638 mL
o 536 mL
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