What is the molarity of a nitric acid solution
What is the molarity of a nitric acid solution if 43.53 mL 0.1000 M KOH solution is needed to neutralize 20.00 mL of the acid solution?
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At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol). What is the solubility product constant for Ba CO3 at that temperature?
)Benzene, C6H6, is an organic liquid that freezes at 5.5 C. How much energy as heat is evolved when 15.5 g of benzene freezes at 5.5 C? The enthalpy of fusion is 9.95 kJ/mol.
X-rays with a wavelength of 1.16 AA scatter at an angle of 26.0 degrees from a crystal. If n = 1, what is the distance between planes of atoms in the crystal that give rise to this scattering?
he shot leaves the hand at a height of 2.110 m and at an angle of 33.60°, and it lands at a horizontal distance of 14.00 m. What is the magnitude of the athlete's average force on the shot during the acceleration phase? (Hint: Treat the motion
A hammer is hanging by a light rope from the ceiling of a bus. The ceiling of the bus is parallel to the roadway. The bus is traveling in a straight line on a horizontal street. You observe that the hammer hangs at rest with respect to the bus whe
The acid required 27.4 mL of base to reach the equivalence point. (a) what is the molar mass of the acid? (b) after 15.0 mL of base had been added in the titration, the pH was found to be 6.50. What is the Ka for the unknown acid?
The loss of heat to the external environment is negligible. When equilibrium is established, the temperature is 30.0°C. What is the specific heat capacity of the specimen?
A syringe for drawing blood commonly has an opening with a diameter of 0.514mm. If a force of 5.5. is applied to the syringe, what is the pressure of the liquid coming out of the needle.?
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