How many grams of calcium is needed
How many grams of calcium (m.w. = 40.1g) is needed to react with 41.5g Cl (m.w. = 35.5g) to produce CaCl2?
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The standard molar enthalpy of vaporization for water is 40.79 kJ/mol. What mass of steam is required to release 500. kJ of energy upon condensation?
Sodium hydroxide is a common ingredient in drain cleaners such as Drano. The mole fraction of sodium hydroxide in a saturated aqueous solution is 0.310. What is the molality of the solution?
Can this plane land on a small tropical island airport where the runway is 0.800 km long? What is the actual minimum distance needed to stop the plane?
If the solubility of benzoic acid is 6.80g per 100mL of water at 100 degrees celsius and 0.35g per 100mL of water at 25 degrees C.
Calculate the mass of KI in grams required to prepare 8.00 102 mL of a 2.80 M solution
The distances shown in the drawing are rSM = 1.5 1011 m and rEM = 3.85 108 m. Determine the magnitude of the net gravitational force on the moon.
The quantity of the gas is fixed and the volume remains constant as the pressure is adjusted to 6.00 ´ 102 torr. What is the resulting temperature of the gas?
At a certain temperature and pressure 1.4 L of N2 reacts with 2.1 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
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