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empirical formula for 2.80 g nitrogen and 8.00 g oxygen. what is the molecular formula empirical formula of NH2Cl, molar mass = 51.5 g/mol
Carbon disulfide, CS2, is a volatile, flammable liquid. It has a vapor pressure of 400.0 mmHg at 28.0°C and 760.0 mmHg at 46.5°C. What is the heat of vaporization of this substance?
A 41 kg person drinks 280. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work,
A metal has crystallized with a face-centered cubic lattice. The edge of the unit cell is 366 pm. What is the diameter of the metal atom?
Choose only the mixtures that constitute buffer solutions. Can someone how i would determine this as well? 0.30 M HOCN mixed with 0.35 M NaNO3
.56 g of a specific gas are held at 101 degrees Celcius and 800 torr in a volume of 285 mL. Determine the molecular weight of the gas.
ethoxypropan-2-ol can be made by the ring opening of an epoxide when sodium ethoxide in ethanol-water is used. A) Draw the skeletal structure of (R)-1-ethoxypropan-2-ol.
The heat of fusion of water is 335 J/g. How much heat would be required to melt 47.5 g of ice?
A high pressure natural gas tank is at 3600 psi. The tank contains 4.98 mol of methane (CH4) and 0.66 mol of ethane (C2H6). What is the partial pressure
A gas at 39°C occupies a volume of 1.67 L. At what Celsius temperature will the volume increase to 2.12 L?
When equilibrium is established, it is found that the partial pressure of ammonia has increase by 12.4%. Calculate K for the decomposition of NH4HS at 25 degrees C.
the fraction of the initial mass of gas remaining in the tank if carbon dioxide obeys the ideal gas and PR equations of state
If the mass of the ore from which the gold was extracted is 166.0 g, what percentage of the ore is gold.
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