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A compound is observed to follow first order reaction kinetics with a half-life, t1/2, of 8 s. how long will it take the initial concentration to be reduced to 25%
explain the order of elution you observed while performing the gas chromatography for this experiment. what property of
what volume of 0.150m hclo4 solution is needed to neutralize 54.00ml of 8.80times10-2 m naoh?nbspwhat volume of 0.120m
Calculate ΔH° for the reaction -> 2 K(s) + 2 H2O(l) 2 KOH(aq) + H2(g) A 4.85-g chunk of potassium is dropped into 1.06 kg water at 24.0°C.
oleci acid has following compostions : 76.54%C, 12.13%H, 11.33% O. If the experimental molar mass is 282.g/mol, what is the molecular formula of oleic acid?
A 10.80-mL sample of sulfuric acid from an automobile battery requires 35.18-mL of 1.62 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? Sulfuric acid contains two acidic hydrogens.
How many grams of water can be cooled from 34°C to 11°C by the evaporation of 85 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g-K.)
what will be the heat capacity in units of jk of a constant pressure coffee-cup calorimter that contains 100.0 ml of
A sample of gas with an initial volume of 27.6L at a pressure of 735 mmHg and a temperature of 309 K is compressed to a volume of 15.8 L and warmed to a temperature of 374 K.
What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.
to what celsius temperature must 63.0 ml of methane gas at 86.0degc be changed so the volume will be 50.0 ml? assume
In photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
What is the major product when trans-cinnamaldehyde is reacted with cyclohexanone?
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