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A student is performing the experiment of resonance column.the diameter of the column tubeis 4 cm.the frequency of the tuning fork is 512Hz..the air temperature is 38C in which speed of sound is 336m/s. The zero of the meter scale coincides with thetop end of resonance column tube.when the first resonance occurs,reading of water level is?
What accelerating voltage is required to pass a N O +3 molecule through the exit slit of a magnetic sector mass spectrometer if the magnet has a field strength of 0.240T and the radius of curvature
Consider H2, D2, and H20, treated as ideal gases at pressures of 1 atm and temperatures of 293.2 K.
Calculate the molality of the solution and the 95% CL, and write the final result with correct format.
Calculate the mole fraction of each component in the resulting mixture after oxidation assuming that the H2O is present as a gas
Ultra-high-vacuum experiments are routinely performed at a total pressure of 1.0x10^-10 torr. Calculate the mean free path of N2 molecules at 350K
What magnitude of current is required to produce 1.0 kg of sodium metal in one hour by electrolysis?
When calculating the density of your regularly shaped object, which measurement will limit your final result?
The heat of vaporization of 1.0 mole of water at 100°C and 1.0 atm is 40.6 kJ. Calculate the change in entropy for the process H2O(l) → H2O(g). Document your work here.
An unknown compound has the empirical formula CH2. A 0.050-mol sample of this compound weighs 4.20 g. What is the molecular formula of this compound?
Draw the structural formula & identify the types of bonds in each of the following organic compounds: C5H8 & C4H6
How much heat is required to change a) 32.6 g of ice at 0.0 C into water at 0.0 C b) 32.6 g of water at 100.0 C into steam
Potassium and oxygen gas react to form potassium oxide. b. Sodium and water react to form sodium hydroxide and hydrogen gas. c. Iron and oxygen gas react to form iron (III) oxide.
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