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Calculate the average volume per molecule for an ideal gas at room temperature and atmospheric pressure. Then take the cube root to get an estimate of the average distance between molecules. How does this distance compare to the size of a small molecule like N2 or H2O?
A 74.0-mL sample of 0.13 M HNO2 (Ka = 4.0 × 10-4) is titrated with 0.14 M NaOH. What is the pH after 25.8 mL of NaOH has been added?
Explain why compunds can have same electron cloud geometry but different molecular
The concentration of Pb2+ in a commercially available standard solution is 1.000 mg/mL. What volume of this solution should be diluted to 6.0 x 10^2 mL to produce a solution in which the concentation of Pb2+ is 0.0505 mg/L
A photon of light has a frequency of 2.80x1014 Hz. What is the wavelength of the photon in units of nanometers
how many pi bonds are there in a molecule of crotononitrile?how many sigma bonds are there?how many nonbonding valence
What is the mass of a piece of aluminum that is found to displace 13.4 ml of water and has a density of 2.66 g/cm^3
A typical aspirin tablet contains 324 mg of aspirin (C9O4H8), a monoprotic acid with a Ka= 2.8x10^-4. A monoprotic acid donates a single proton. If you dissolve two aspirin tablets in a 300 mL glass of water, what is the pH of the solution
the water for the pan is not saturated with CO2. Will the reported percent CaCO3 in the original sample be too high, too low, or unaffected? Explain
Predict which of the following compounds has the greatest lattice energy. A. SCl6 B. AlCl3 C. NaCl D. MgCl2 E. PCl5
determine the mass of agno3 mw 170gmol required to dissolve in 400 ml solution in order to prepare a solution which is
the value of kp for the reaction 3h2 n2--gt2nh3 is 4.3x10-4 at 648 k. determine the equilibrium partial pressure of
3-bromo- 1-butene and 1-bromo-2-butene undergo sN1 reaction at nearly the same rate even though one is a secondary halid and the other is primary why
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