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Define 265.6 g of water is in a Styrofoam calorimeter of insignificant heat capacity. The initial T of the water is 20.0C. Subsequent to 136.1 g of an unknown compound at 77.0C is added, the equilibrium T is 31.4C. Explain what is the specific heat of the unknown compound in J/(gC)?
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
In a Titration 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00mL hydrofluoric acid solution. What is the molarity of the hydrofluoric acid solution?
Calculate the mixing ratio (ppbv) of NO2. Assume T=20 degrees Celsius = 293 K; P = Atmospheric pressure. MW of NO2 = 44g/mol.
If you were to combine a 200.0mL aqueous solution of 0.75M NaHCO3 with 200.0mL of 0.50M CaCl2 in a constant pressure calorimeter, what change in temperature would you measure?
At 25.00 degree celsius, the vapor pressure of butane is 2.3 atm. what is the pressure in the container at 135 degree celsius. (change in heat of vapor is 24.3 kJ/mol)
A 1.00-L gas sample at 100.°C and 589 torr contains 50.0% helium and 50.0% xenon by mass. What are the partial pressures of the individual gases?
what it is perscribed for 3.Mechanism of action( for example: how it binds to biological molecules, how it may inhibit enzyme activity.)
the epa limit for lead in the water supply is 15 parts per billion by mass. calculate the number of lead ions present
What is the rate constant? what would happen if you increase the concentration of NO by a factor of 1.9?
Why is the ability to separate 2 liquids by fractional distillation drastically reduced if heat is applied too rapidly to the distillation flask
iron iii carbonate when heated decomposes ito iron iii oxide and carbon dioxide. 1fe2co33-gt1fe2o33co2 what mas of iron
Calculate the final Celsius temperature of hydrogen chloride gas if 0.500 L at 35°C and 0.950 atm is heated
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