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Calculate the volume of 1.94×10-3-M H2SO4 solution needed to provide 4.83×10-3 g of H2SO4.
If 7.63 of an unknown gas occupies 79.1mL at 25.02 degrees celcius and 7.55 atm of pressure, what is the molar mass of the gas? R=0.0821
caclculate the number of grams of Fe formed when 0.300kg of Fe2O3 reacts.
At 25 oC the solubility of copper(II) iodate is 3.27 x 10-3 mol/L. Calculate the value of Ksp
A cannonball made of iron has a volume of 115 cm3. If iron has a density of 7.86 g/cm3, what is the mass in grams of the cannonball?
The reaction 2NOCl(g) → 2NO(g) + Cl2 (g) has an activation energy of 100.0 kJ/mol and a rate constant at 400.0 K of 8.5 x 10-6 mol-1 L s-1. Determine the rate constant at 450 K.
Radioactive nitrogen-13 has a half-life of 10 minutes. After 40 minutes, how much of this isotope would remain in a sample that originally contained 96 mg?
What volume and mass of steam at 100.°C and 1.00 atm would, during condensation, release the same amount of heat as 100. cm3 of liquid water during freezing.
A 2.00 liter vessel is ?lled with NH3(g) to a pressure of 4.00 atm and the reaction N2(g) + 3 H2(g) ?? 2 NH3(g) comes to equilibrium at a ?xed temperature.
what tempreture must 0.040 moles of water vapor be heated in a 500ml flask before the pressure in the flask becomes 2 atm.
The constant pressure molar heat capacities of ice and water are 37.7 J/ mol K and 75.3 J/ mol K respectively. The molar enthalpy of fusion of ice is 6.01 kJ/ mol at 0.00° C. The system consists of a 105 gram sample of H2O, initially in the form o..
The Henry's Law constant (Kh) for O2 in water at 20 degrees C is 1.28e^-3 mol/L*atm. How many grams of O2 will dissolve in 2.00L of H2O that is in contact with pure O2 at 1.00 atm?
A 45.5g sample of copper at 99.8 Celsius is dropped into a beaker containing 151 g of water at 18.5 Celsius.
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