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Rotational absorption line from 1H35Cl gas were founded at the following wavenumber 85.32, 104.13, 124.75, 145.37. 165.89, 186.23, 206.60, 226.86 cm^-1. Calculate the moment of inertia and the bond length of the molecule. Predict the positrions of trhe corresponding line in 2H35Cl
Calculate the amount of heat liberated (in kJ) from 325 g of mercury when it cools from 81.9°C to 10.0°C.
How many valence electrons are in a Kr atom?
The element Uranium found on earth is most likely formed by which nucleosynthetic process
A dioxin-contaminated water source contains 0.081% dioxin by mass. How much dioxin is present in 4.2 L of this water? (Assume that the density of the solution is 1.01 g/mL.)
Consider the titration of 30.0mL of 0.050 M NH_3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added. a) 0mL b)20.0 c)59.3 d)60 e)72.6 f)73.1
Calculate the pH of the following aqueus solution: 0.61 M NH4Cl (pKb for NH3=4.74)
at a temperature of 520 degrees C, the equilibrium concentration of HI is 0.80 M, of H2 is 0.010 M, and of I2 is 0.010 M. What is the K for the reaction?
Five grams of the specified pure solvent is placed in a variable volume piston. What is the volume of the pure system when 50% and 75% have been evaporated at: (i) 30 deg C (ii) 50 deg C?
An elemental analysis shows that it contains 40.0 mass percent C, 6.71 mass percent H, and 53.3 mass percent Oxygen. Remember mass percent = grams. A determine the empirical formula. B. determine the molecular formula.
One of the sodium oxoacid salts of chlorine (there are 4 salts, each containing Na, Cl, and O) was analyzed. A 17.00 g sample was found to contain 3.68 g Na and 5.67 g Cl.
If your methanol was wet (contained water), what compound would be formed and isolated along with trityl methy ether. Explain and what effect would that have on the melting point of the product
How much copper metal can be obtained by the single replacement reaction between copper (1) nitrate and 30.0g of iron metal. (iron (2) nitrate is formed.)
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