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At 0.0oC, if the volume of air is 2.9 mL and the pressure of the atmosphere that day is 675 mmHg, what is the number of moles of air?
If 275 g of liquid water at 100.°C and 475 g of water at 30.0°C are mixed in an insulated container, what is the final temperature?
A.117 gram sample of a metal reacts with hyrdochloric acid to produce 36.3 ml of dry hydrogen gas, measured at STP. what is the equivalent weight of this metal?
The normal respiratory rate for a human being is 15.0 breaths per minute. The average volume of air for each breath is 505 cm3 at 20 ? C and 9.95 × 10 4 Pa.
Calculate deltaS(Jmol^-1K^-1) for oxalic acid and delta S (Jmol^-1K^-1) for the combustion of one mole of oxalic acid.
A gas-filled balloon having a volume of 5.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth),
Aluminum nitrate and annonium chloride react to produce aluminum chloride, nitrogen and water. what mass of aluminum chloride is present after 43 g of aluminum nitrate and 43 g of amminium chloride have reacted completely
Consider the following electrochemical cell at 298 K. One compartment contains a 1.00-M solution of silver nitrate. The other compartment contains a saturated solution of silver iodide
Consider a glass of 215 mL of water at 28°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.
in photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
Calculate the resulting pH if 400 mL of 0.50M HCl is mixed with 300 mL of 0.080 M NaOH.
In a calorimeter, 10 g of ice absorbs heat with an enthalpy of fusion of 334 J/g. What is the heat absorbed.
Determine the precipitate that forms if silver nitrate aqueous solutions and KCl react to produce products in a double-replacement reaction.
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