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During a thunderstorm, 4.5 s elapses between observing a lightning flash and hearing the resulting thunder. Approximately how far away, in kilometers and miles, was the lightning flash?
On the right, it is single bonded to the C which is single bonded to each H. The other form I have is the mirror immage of this one. What is the last form
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 28.0cm higher than the level in the arm open to the atmosphere and the atmospher..
The following osmotic pressures were observed for bovine serum albumin (BSA) in 0.15 M NaCl at 273 K. Calculate the molar mass of BSA.
A 0.200 L sample of H2 is collected over water at a temperature of 298 K. Atmospheric pressure is 99.00 kPa. Water has a vapor pressure of 23.00 Torr at this temperature. What is the mass of the sample of gas which was collected
How many molecules of carbon dioxide are produced when 123 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
2.9 mol Fe(OH)3 and 7.7 mol H2SO4 react according to the equation 2 Fe(OH)3 + 3H2SO4 ->Fe2(SO4)3 + 6H2O. If the limiting reactant is Fe(OH)3, calculate the amount of Fe2(SO4)3 formed.
Two gases, H2 and O2 are in flasks with volumes of 2L and 1L, respectively, separated by a stopcock. While the stopcock is opened, the gases mix thus that the total volume is 3L assume 1atm pressure.
in a titration 35.84 ml of 0.2419 m hcl solution is required to completely neutralize 18.62 ml of feoh3 solution.what
If 4 liters per minute of 100 ppm 1,1,2-trichloroethane solution is to be reduced by 99% in a diffused air CSTR, what air flow is required if equilibrium is assumed. What air flow is needed for 90% removal.
Saturated sodium chloride. describe what happens when 12 M HCl is added to saturated (5.4 M) NaCl. Calculate [Cl-] in the original solution and after the addition of the 12 M Hcl (before any precipitate forms).
The reaction of CrCl3 with liquid NH3 to give yellow [Cr(NH3)6]Cl3 often has a low yield, since the reaction tends to stop with the production of pink [Cr(NH3)5Cl]Cl2
When 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, the freezing point of the solution is 4.53 °C. What is the molar mass of the substance
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