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Two unlabelled bottles containing clear, colorless liquids are found in the organic section of the chemical storage room. Explain the physical or chemical tests that could be conducted in order to find out whether the two substances are unsaturated or saturated.
Design an experiment using sequential qualitative analysis to determine whether a solution contains acetate or carbonate ions. For each stage of the test write net ionic equations that could occur.
Calculate the molarity (M) of the following solutions. Express the answer using 2 sig figures.
If energy obtained from burning 1.23 pounds of butane (feul value is 10.85 kcal/g) is used to heat 126.5 kg of water at an initial temperature of 20.7 degrees C, what is the final temperature
A 50.00-mL sample of white dinner wine required 24.76 mL of 0.03867 M NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid
A student suspected that an unknown was undergoing a chemical change at its melting point. Suggest a simple method for testing the hypothesis.
The equilibrium of Fischer esterification reactions in general is slightly towards product formation. The equilibrium can be made more favorable for product formation by all of the following except
Copper crystallizes in a face-centered cubic lattice. If the edge of the unit cell is 351pm, what is the radius of the copper atom
Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. O2(g) + 4H+(aq) + 4e- Picture 2H2O(l); E° = 1.229 V Al3+(aq) + 3e- Picture Al(s); E° = -1.662 V Overall reaction: 4Al(s) + 3O2(g) + 12H+(aq) ? 4Al3+..
Find the molarity of a solution prepared by dissolving 120 g CaCl2 (MW = 111 g/mol) in 450 cm3 of solution.
blood alcohol content of an individuals is 0.15. if we suppose the individual drank all of the alcohol at the total
How many moles of sodium hypobromite (NaBrO) should be added to 1.00 L of 0.055 M hypobromous acid (HBrO) to form a buffer solution of pH 8.95? Assume that no volume change occurs when the NaBrO is added.
a 35.0-ml sample of 0.20 m lioh is titrated with 0.25 m hcl. what is the ph of the solution after 23.0 ml of hcl have
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