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Consider a glass of 167 mL of water at 29°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0.
When 1.43g of the hydrocarbon is burned, 2.39 grams of water and 4.40 grams of carbon dioxide is collected. Determine the empirical formula of the hydrocarbon. Name the hydrocarbon.
a group 3A metal has a densityof 2.70 g/cm3 and a cubic unit cell with an edge length of 404 pm . Reaction of a 1.07cm3 chunk of the metal with an excess of hydrochloric acid gives a colorless gas that occupies 4L at 23C and a pressure of 740 mm H..
An oil bath maintained at 50.5oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.
Determine the number of electron pairs (both bonding pairs and lone pairs) on the iodine atom in the following.
What are your actual experimental ratios? Give possible reasons for any observed variations from these ratios.
How much salicylic acid is required to produce 1.1 x 102 kg of aspirin assuming that all of the salicylic acid is converted to aspirin
A mixture of an amine, RNH2, and other items in CH2Cl2 was extracted with 10% HCl. The aqueous layer was discarded. The organic layer contained no amine. What went wrong?
What are the direction and magnitude of the velocity of plane 1 relative to plane 2? What is the Degrees? ° north of east
The hydrosylation of polymer A is carried out in the presence the polymer forms a hard gel. if the price of pt is 44$ per gram and the sale price of the hardened polymer is 2000 per ton, what is teh min catalyst TON for an economiclly viable proce..
when the explosion destroys the bomb casing the gas is released into the atmosphere where it reaches a pressure of 1.00 atm. what is the volume of the gas after the explosion? assume constant temperature and number of moles.
At a temperature of 415 C and a pressure of 725 mmhg , how many grams of NH3 can be produced when 4.10 L of NO2 react?
when the cations Na+ K+ Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy? KCL or RbCl, or NaCl or CsCl.
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