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Ozone reacts with nitric oxide discharged from jet planes to form oxygen gas and nitrogen dioxide. 0.740g of ozone react with 0.670g of nitric oxide. Determine the identity and quantity of the reac
Bromothymol blue is a common acid-base indicator. It has a Ka equal to 1.6 X 10^-7. Its unionized form is yellow and its conjugate base is blue. What color would a solution have at pH=5.8?
The solubility of barium carbonate,BaCO3, is .0100 g/L . Its molar mass is 197.6. What is the Ksp of barium carbonate?
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a
25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.4°C is mixed with 32.1 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, wh
what concentration of x would be required for the transmittance to be increased by a factor of 3 when a factor of 3 when a 1.00-cm cell was used?
A student placed 14.5 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask
Naturally occurring silver contains 107Ag (amu 106.91) and 109Ag (amu 108.90) with mass percentages of 51.840% and 48.160%, respectively. What is the atomic mass of this mixture?
A 40.0 g sample of solid ammonium carbonate is placed in a closed evacuated 3.00 L flask and heated to 400 degrees C. Write the kp equilibrium constant expression for the reaction.
Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0mL of C2H5OH with 100.0 mL of H2O at 20 degrees celsius. the density of C2H5OH is .789 g/mL at 20 degrees celsius.
Suppose 532 mL of neon gas at 20C and 1.04 atmospheres and 376 mL of SF6 gas at 20C and 0.97 atmospheres are put into a 275-mL flask. If the temperature remains constant, calculate the partial press
The piston is moved to increase the volume to 6.00 L. Which of the following is a reasonable value for the pressure of the gas at the greater volume?
If I initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 K, and then I raise the pressure to 14 atm and increase the temperature to 300 K, what is the new v
What are the advantages and disadvantages of recycling metals?
If 161 mL of wet H2 is collected over water at 24 degrees C and a barometric pressure of 739 Torr , how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr.)
The temperature of the ideal gas in the container shown is 300 K. The gas occupies a volume of 1.27 m3. What would be the volume of the gas if its temperature were decreased to 100 K? No blocks are
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
For a parallel reaction A giving B and C, the reaction rate constant k1= 4.8 ×10-7 s-1, the selectivity between C and B was found to be 15. The initial concentration of A was 4.0×10-3mol
what is the molarity of a solution prepared by combining 125mL of 0.251 molar HCl with 250mL of pure water.
At 25.0°C, a sample of Xe gas occupies 545 mL in a piston-cylider apparatus when the external pressure is 751 torr. At what pressure (torr) will its volume become 673 mL if the temperature does
What is the best way to distinguish between levorotatory and dextrorotatory enantiomers if measured optical rotation is -90 and 270 degrees?
Write the lewis structure for SeF6. What is the general "ABX" structure, shape name, and molecular polarity?
For the voltaic cells that you measured that used silver and copper provide the reaction that represents the voltage observed.Repeat this for the cell that used lead and copper. D oes copper behave
what concentration of aqueous NaCl solution freezes at -15.2 C? the freezing point of pure water is 0.0 C and Kf of pure water is -1.86 C/m.