What is the molality of particles in a solution
What is the molality of particles in a solution containing 25.4 g of Al(NO3)3 dissolved in 530. g of water? Use molar masses with at least as many significant figures as the data given.
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Describe the pH of a buffer solution consisting of 100 mL containing 0.1M CH3COOH and 0.125M CH3COO- , both before and after addition of 10 mL of 0.25M HCl. Ka = 1.8 x 10-5.
How many mL of 4.50 M sodium hydroxide must be added to 250 mL of a 0.200 M nitrous acid solution to make a buffer with pH = 3.00?
Compare the percent ionization of the base in (a) with the percent ionization of the base in (b).
To receive a passing grade you must use SPECIFIC information from at LEAST 3 chapters of Outsourcing American by Ron Hira and Anil Hira (2005). it has to be the paperback version (2005), not hardback version
What is the percent yield of water produced when 138 g ethyl alcohol, C2H5OH, is combusted in excess oxygen, if the actual experiment generated 150 g water?
The heat of formation of liquid hydrazine (N2H4) is 50.63 kJ/mol. Use tabulated data for other heats of formation.
How many grams of Cl2 can be prepared from the reaction of 15.0g of MnO2 and 30.0g of HCl according to MnO2 + 4HCl ->> MnCl2 + Cl2 + 2H2O
A 1.0 ounce piece of chocolate contains 15 of caffeine, and a 6.0 ounce cup of regular coffee contains 105 of caffeine.
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Program evaluation is a systematic process of collecting and using data to assess how well a program achieves its goals.
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