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As part of your explanation, explain what a "spectator ion" is.
determine the molecular formula of a compound which has a empirical formula of ch3 and a molar mass of 60.0
The d-d transition in [Ti(H2O)6]+3(aq) produces an absorption maximum at 500 nm. What is the magnitude of ? for this complex in kJ/mol? HINT: E = h ? and c = ? ? Enter your answer using 3 significant figures.
What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer with a pH of 5.20? [Ka(C6H5COOH) = 6.5 * 10-5]
a solution of koh is prepared and is standardized against 0.5418 g of khp. the phenolphthalein endpoint was reached by
What is the value of the equilibrium constant for the reaction between Al(s) and Cd2+(aq), at 25 °C?
A reaction inside a cylindrical container with a movable piston causes the volume to change from 14.0L to 21.0L while the pressure outside the container remains constant at 0.975 atm.
A zero-order reaction has a constant rate of 3.50×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 1.00×10-2 M, what was the initial concentration?
The bromine generation reaction is a spontaneous reaction. Must NaI been used instead of NaBr would I2 be formed? Validate with calculations. Initial reaction of NaBr and NaClO Bleach to produced Br2.
A voltaic cell consists of a Mn/Mn2+ electrode (E° = -1.18 V) and a Fe/Fe2+ electrode (E° = -0.44 V). Calculate [Fe2+] if [Mn2+] = 0.050 M and Ecell = 0.78 V at 25°C.
Aluminum and oxygen react according to the following equation: 4 Al (s) + 3 O2 (g) → 2 Al2O3 (s) What mass of Al2O3, in grams, can be made by reacting 4.6 g Al with excess oxygen
Question- You are presented with an unknown weak acid. You measure the pH of the solution to be 3.09 after dilution with water as per the lab instructions (remember the total volume is 20 mL after dilution). He titrates the weak acid with 14.26 mL..
determine the mole fraction of sodium chloridenacl in the solutionnbsp if this nbspsolution is formednbsp by mixing
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