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What is the purpose of using a drying agent on the organic layer after a separation? How can you tell if the extracted solution is "dry"?
Balancing equation to calculate correct number of moles If CaC2 + 2 H2O --> C2H2 + Ca(OH)2 then, there are 65 grams of calcium carbide
When magnesium nitride is placed in water, it is decomposed to give the same magnesium containing product as formed from magnesium oxide and water. There is also a strongly odored gaseous product formed. What is the gas? Write a balanced equation ..
Consider a substance X with a Hvap = 20.3 kj/mol and Hfus = 9.0 kj/mol. The melting point, freezing point, and heat capacities of both the solid and the liquid X are identical to those of water
1.assuming that the answer to part b is yes at what temperature will the crystals begin to appear when the students
understanding of chemistry basics.1. boltzmanns critics claimed his work was unscientific because he.a. presented his
Naphthalene is the simplest of the polycyclic aromatic hydrocarbons and can be represented by three resonance structures
Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of Cl2 gas is 8.80 L at 885 torr and 25*C.
analysis. To a 500 mL air sample at 700 torr and 38 deg C, she adds 20.00mL of 0.01017 M aqueous iodine which reacts as follows:
important to dry the hexane extract phase containing the yellow and green pigment prior to performing column chromatography.
an unknown liquid with boiling range of 179-181 C is insoluble in water, gives a blue green suspension with chromic acid and immediately forms a separate layer when shaken with Lucas' reagent.
What is the percent yield of lithium nitride if 76.8 g of lithium nitride is recovered from reacting 56.0 g of nitrogen gas with 56.90 g of lithium metal?
If it were possible to obtain 100% yield, when the temperature was returned to the origenal value what would be the partial pressure of each gas be?
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