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Will changing the temperature of the surroundings favor spontaneity, nonspontaneity, or have little effect? deltaH = -30.4 kJ/mol
traditional MALDI mass spectrometry, what are two factors that limit the spatial resolution that can be obtained in imaging mode?
How many milliliters of a 235 mL solution of 1.5 M AlCl3 must be used to make 61 mL of a solution that has a concentration of 0.5 M Al3+?
a liquid unknown was found to be inslouble in water & soluble in cyclohexane & alcohol; the unknown was found to have a boiling point of 58 degress celsius at 670mm Hg. What is the substance? What could you do to confirm your answer?
A gaseous organofluorine compound has a density of 0.496 g/L at 17 deg. C and 189 mm Hg. What is the molar mass of the compound
Calculate the pH of the solution at the equivalence point. b) What volume of 0.05 M HCl solution should be added to the sodium glutamate solution to yield a pH of 4.5?
Why does the non aqueous reaction of pyridine and SnCl4 produce a white precipitate
Water will change from one phase to another as it temperature changes.In it's gaseous form, steam, water has it's highest temperature.Water in this form will not change into liquid unless a certain amount of heat is removed.An example, is the cond..
Based on the data for step 2 of the experiment, predict what would happen if you performed step 3 of the experiment (how many sets of three drops of each of the HCl and NaOH would be needed until the buffering capacity is lost for the two solution..
When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water. How many grams of sodium sulfide are formed if 2.00 g of hydrogen sulfide
How many kilograms of magnesium can be obtained from 5.96 km^3 of seawater if the initial Mg^2+ concentration is .19% by mass. Remember the density of seawater is 1.04 g/ml
Draw all of the resonance forms of 4-nitrobenzaldehyde which contribute to the enhanced electrophilicity of the aldehyde carbon relative to benzaldehyde
During photosynthesis chlorophyll a absorbs light of 440 nm and emits light of 670 nm.
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