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Urea is an organic compound widely used as a fertilizer. its solubility in water allows it to be made into aqueous fertilizer solutions and applied to crops in a spray. what is the maximum number of water molecules that one urea molecule can hydrogen bond with?
an auto mechanic spills 78. ml of 2.5 m h2so4 solution from a rebuilt auto battery. how many milliliters of 1.3 m
Nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia (NH3). At 200°C in a closed container, 1.3 atm of nitrogen gas is mixed with 2.2 atm of hydrogen gas. At equilibrium, the total pressure is 2.1 atm. Calculate the partial pressure of ..
calculate the mass of agcl and h2s formed when 85.6 g of ag2s reacts with excess hcl.
identify the absorptions associated witht he carbonyl group and with the aromatic rings
carbon and oxygen occupies a volume of 452 ml at 63 C and 745 mmHg. identify the gas in the sample (R= 0.0821 L*atm/K*mol)
Calculate the theoretical yield of C2H5Cl. Calculate the percent yield of C2H5Cl if the reaction produced 176 g of C2H5Cl.
Write a chemical equation for the reaction whose enthalpy change is the standard enthalpy of formation, ?H of, of table sugar, sucrose, C12H22O11 (s).
The air in a laboratory was measured with a barometer to be 7.40 x 10^2 mm Hg. What is the laboratory air pressure in atm?
Why is it important to clean the surface of the zinc and copper electrodes with 1 M HNO3 immeadiately before using them in this experiment.
Benzene's vapor pressure is normally 0.930 atm. A soln of 20.0g unknown molecular solute and 78.11 g benzene has a vapor pressure of 0.900 atm. What's the unknown molar mass. Benzene molar mass= 78.11 g/mole
How is the rate of disappearance of ozone related to the rate of appearance of oxygen in the following equation: 2 O3 (g) ? 3 O2 (g) (rate expression)
Calculate the molarity of an aqueous solution that is 5.20% by mass CaCl2, given that the density of the solution is 1.19 g/mL
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