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Question about Atomic Emission Spectra
For each line in the hydrogen spectrum, how do you deduce n2 (the upper state) and n1 (lower state)?
If you could record the absorption spectrum of hydrogen gas, what would it look like?
What is the vapour (or gas) present in fluorescent lights? How do you know?
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
What is the molar mass of a gas if 0.358 g of the gas occupies a volume of 186 mL at 5.00C and 1.10 atm.
calculate the pH formed by mixing 100 mL of 0.20 M HCL with 50 mL of 0.30 M NaOH.
Calculate the amount of energy released by the freezing of 13.3 g of a liquid substance, given that the substance has a molar mass of 82.9 g/mol and a molar heat of fusion of 4.60 kj/mol.
Compute the pH if NaOH solution of the 10.00 mL has been mixed. pKa of HCOOH = 3.74
2H2S (g) + 3O2 (g) → 2H2O (g) + 2SO2 (g) If 3.50 g of H2S are used in the above reaction, what will be the theoretical yield of water in grams.
Determine the molar mass of the compound if boiling point constant for CCl 4 =4.95 K · kg/mol.?
Calculating Pressures using different laws, Converting between Units of Pressure, Part A, Convert 0.700atm of pressure to its equivalent in millimeters of mercury.
Write the overall cell reaction of each. Identify the anode and cathode of each. Arrange the three metals in order of decreasing ease of oxidation(most easily oxidized metal first
13.00 moles of gas are in a 5.00 L tank at 22.6 C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2*atm/mol2 and b = 0.0430 L/mol.
Find out the eq molar concentration of SCN- in the system.( Kc=[FeNCS2+]/[Fe3+][SCN-] =271.5)
A cubic meter of a gravel-and-sand aquifer has been contaminated with 20 L of tetrachloroethylene. If the amount of tetrachloroethylene dissolved in aquifer water is 20 percent of its aqueous solubility,
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