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Why are we able to determine absolute molar entropies for substances without having to make a arbitrary starting point (i.e., why don't we have to identify an arbritrary "zero" baseline for entropy like we did for standard heats of formation)?
Question- 18.7 L N2 at 25 °C and 125 kPa and 31.1 L O2 at 25 °C and 125 kPa were transferred to a tank with a volume of 4.00 L. What is the total pressure at 37 °C
Question- The reaction for the formation of gaseous hydrogen fluoride has an equilibrium constant of 1.15 e2 at a certain temperature. H 2 (g) + F 2 (g) 2 HF (g) At this temperature, 2.500 mol of each component were added to a 1.500 L flask. Cal..
How many gm of dry NH4Cl need to be combined to 2.30L of a 0.300M solution of NH3, to prepare a buffer solution of pH 8.85.
A hydrate of calcium sulfate CaSO4.XH2O contains 20% water. calculate the ater of crystallization (X), and write the formula of the hydrate
Problem- Balance the reaction between acetylacetone and aluminum (III) nitrate nonahydrate. I know nitric acid is liberated in the reaction and ammonia is used to neutralize it
A student analyzed an antacid tablet from a bottle containing 120 tablets purchased for $2.79. The mass of the tablet was 1.247 grams. What is the cost of one antacid tablet in cents/tablet.
Hard water contains Ca+2, Mg+2 and Fe+2, Explain which interfere with the action of soap and leave an insoluble coating on the insides of containers as well as pipes when heated. Water softeners replace these ions with Na+.
Explain how would I find the percent yield and what would it be if I have 3.292 g of p-anisaldehyde to start out with, 2.905 g of acetophenone needed for the reaction between p-anisaldehyde and acetophenone, as well as 4.151 g of recovered trans-..
what mass of magnesium will react wait a 500.0mL container of oxygen at 150.0 degrees Celsius at 70.0 kPa?
Toluene, a colorless organic liquid, has a density of 0.8669 g/mL at 20 degrees Celsius. Determine the specific gravity of toluene at 20 degrees Celsius.
What is the difference between molar mass and molecular mass?
When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water.
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