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Problem- An FM radio station has a frequency of 88.9 MHz (1MHz = 10*6 Hz). Determine the wavelength (in nm).Find the correct values
degree cl the initial concerntration of the three gases are 0.270M h2s,0.270 h2 and 0.135 s2. determine the equilibrium concentrations of the three gases
The Ka for a weak acid, HA is 1.6 x 10^6. What are the pH and degree of ionization of the acid in a 10^-3 M solution. Calculate the pKa and pKb.
a gas evolved during the fermentation of sugarwas collected. after purification its volume was found to be25.0 l at
calculate the molality of a sucrose c6h22o11 solution containing 14.3 g of sucrose in 676 g of
Arrange the following solutions by increasing chloride ion molarity. 1 M NaCl, 1 M FeCl3, 5 M NaCl, 1 M CaCl2, 2 M FeCl3, 2 M CaCl2
A 35.0mL sample of 0.150 M acetic acid (CH3COOH) is titrated with 0.150 M NaOH solution. Compute the pH after the following volumes of base have been added.
The product of furan as well as maleic anhydride in diethyl ether reacts at room temperature moreover forms the exo products as the major product. This product decay at its melting point while most other Diels Alder adducts with maleic anhydride d..
There are 86,472 houses in the county and the county occupies a space totaling 475 square miles. How many square miles of housing are present in Chem county?
Determine how will this error control the final computed percentage of CH3COOH in the vinegar
What is the mole fraction of each component if 3.9 g of benzene (C6H6) is dissolved in 4.6. Assuming that this mixture is ideal, that is, it follows Raoult's Law, what is the partial vapor pressure of benzene in this mixture at 50 C
how much potassium chlorate in needed to produce 20.0mL of oxygen gas at 670mm Hg and 20 degrees celcius?
The vapor pressure of dichloromethane, rm CH_2Cl_2, at 0 rm ^{circ}C is 134 rm mmHg. The normal boiling point of dichloromethane is 40. rm ^C. Calculate its molar heat of vaporization.
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