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Problem- How much heat energy, in kilojoules, is required to convert 53.0g of ice at -18.0 C to water at 25.0 C?
Write your solution in appropriate format and provide references
A 3.9336 g mixture sample of BaCl2.2H2O (244.26g/mol) and KCl (74.55g/mol) was dissolved in water and diluted to 500.00 mL. A 25.00 mL of the solution is titrated with 0.1250 M AgNO3 with K2CrO4 as an indicator.
Write a balanced chemical reaction describing the decomposition of ammonium nitrate, and calculate the standard heat of reaction using the appropriate enthalpies of formation
Find an example of a natural product or drug that has been prepared using a Diels-Alder reaction. Show the complete synthesis of the drug.
Name two amino acids that are mostly positively charged at neutral pH. A Lysine and arginine B Histidine and arginine C Cysteine
a coffee cup calorimeter contains 525.0 g of water at 25.0 oc. to it are added350.0 g of water at 48.3 oc 480.0 g of
A gas sample in a piston assembly expands, doing 588 kJ of work on its surroundings at the same time that 372 kJ heat is added to the gas.
The heat capacity of a particular piece of metal is 9.87 joules/gram-Celsius. when dropped in 10.0 ml of water, the temperature of the water rose 1.85 degrees celsius. calculate the mass of this particular piece of metal.
Calculate the molality of total ions in an acqeous solution prepared by dissolving 0.400 moles of magnesium chloride in 850.0 g of water?
Calculate the mass of ferrous ammonium sulfate you would need to add to a 100.00 mL volumetric flask to make a solution that is 59 ppm in Fe. Then, stock solution A is prepared by dissolving 183.5 mg of ferrous ammonium sulfate in water and diluti..
You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400 counts. has diminished to 100. counts after 35.2 minutes , what is the half-life of this substance
If acetaminophen happened to be the unknown component how would one separate it from sucrose and aspirin? Generate a separation flow chart based on the experimental procedure above
Problem- Why is it important to have methods like Gabriel synthesis, reduction of nitriles, reduction of amides and reductive amination to make specific primary, secondary and tertiary amines. Why can't we simply use Sn2 reactions to make these co..
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