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Problem- The percent yield of phenylosazone is less than 100%. What errors could have gone wrong in the experiment to cause this?
Give reasons or calculations to sustain your answer.
A sample of air at STP is determined to contain 77% nitrogen, 21% oxygen, 0.5% water vapor, 0.5% carbon dioxide, and 1% of inert gases etc. Explain what is the partial pressure of water vapor in this sample
State a solution with density of 0.935 g/mL contains 37.8% H2CO, 15.0% C2H5OH, and 47.2% water by weight. Define is the molarity of H2CO?
To the organic chemist, mass spectrometry is especially useful in the determination of the structure of a new compound because it provides information about
What would be the concentration of oxygen (in molarity units) if the gas had remained in the solution? C. Based on the above data, what is the rate of the reaction (in units of solution molarity per second)?
Consider the dissolving of ammonium chloride in water: If you were to hold a test tube in your hand and perform an experiment by dissolving ammonium chloride in water, would energy be released to or absorbed by your hand
What volumes of these two solutions must you mix in order to obtain 200 mL of your required buffer
Concentrated ethanol solutions can be used to kill microorganisms. At low concentrations, however, such as in some wines, the microorganisms can survive and cause oxidation of the alcohol. What is the structure of the acid formed
A uniformly charged thin ring has radius 14.5cm and total charge 23.0nC . An electron is placed on the ring's axis a distance 30.0cm from the center of the ring and is constrained to stay on the axis of the ring. The electron is then released from..
A weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction.
If a sample of dry nitrogen occupies 447mL at STP. Define what would its volume be if it were collected over water at 26 degrees Celsius and 750torr
A furniture factory needs 36.5 ft2 of fabric to upholster on a chair. Its Dutch supplier sends the fabric in bolts of exactly 200 m2. What is the maximum number of chairs that can be upholstered by 3 bolts of fabric (1 m = 3.281 ft)?
What is the pressure of a 10g sample of sulfur trioxide in atmospheres at a temperature of 20 degrees Celsius that has a volume of 50L
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